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POSIX: strcmp NE strEQ().
[perl5.git] / ext / POSIX / POSIX.xs
CommitLineData
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1#define PERL_EXT_POSIX
2
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3#ifdef NETWARE
4 #define _POSIX_
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5 /*
6 * Ideally this should be somewhere down in the includes
7 * but putting it in other places is giving compiler errors.
8 * Also here I am unable to check for HAS_UNAME since it wouldn't have
9 * yet come into the file at this stage - sgp 18th Oct 2000
10 */
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11 #include <sys/utsname.h>
12#endif /* NETWARE */
13
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14#define PERL_NO_GET_CONTEXT
15
463ee0b2 16#include "EXTERN.h"
760ac839 17#define PERLIO_NOT_STDIO 1
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18#include "perl.h"
19#include "XSUB.h"
acfe0abc 20#if defined(PERL_IMPLICIT_SYS)
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21# undef signal
22# undef open
cd661bb6 23# undef setmode
35ff7856 24# define open PerlLIO_open3
873ef191 25#endif
2304df62 26#include <ctype.h>
a0d0e21e 27#ifdef I_DIRENT /* XXX maybe better to just rely on perl.h? */
2304df62 28#include <dirent.h>
a0d0e21e 29#endif
2304df62 30#include <errno.h>
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31#ifdef WIN32
32#include <sys/errno2.h>
33#endif
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34#ifdef I_FLOAT
35#include <float.h>
36#endif
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37#ifdef I_FENV
38#include <fenv.h>
39#endif
a0d0e21e 40#ifdef I_LIMITS
2304df62 41#include <limits.h>
a0d0e21e 42#endif
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43#include <locale.h>
44#include <math.h>
85e6fe83 45#ifdef I_PWD
2304df62 46#include <pwd.h>
85e6fe83 47#endif
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48#include <setjmp.h>
49#include <signal.h>
2304df62 50#include <stdarg.h>
17c3b450 51
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52#ifdef I_STDDEF
53#include <stddef.h>
54#endif
6990d991 55
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56#ifdef I_UNISTD
57#include <unistd.h>
58#endif
59
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60#if defined(USE_QUADMATH) && defined(I_QUADMATH)
61
62# undef M_E
63# undef M_LOG2E
64# undef M_LOG10E
65# undef M_LN2
66# undef M_LN10
67# undef M_PI
68# undef M_PI_2
69# undef M_PI_4
70# undef M_1_PI
71# undef M_2_PI
72# undef M_2_SQRTPI
73# undef M_SQRT2
74# undef M_SQRT1_2
75
76# define M_E M_Eq
77# define M_LOG2E M_LOG2Eq
78# define M_LOG10E M_LOG10Eq
79# define M_LN2 M_LN2q
80# define M_LN10 M_LN10q
81# define M_PI M_PIq
82# define M_PI_2 M_PI_2q
83# define M_PI_4 M_PI_4q
84# define M_1_PI M_1_PIq
85# define M_2_PI M_2_PIq
86# define M_2_SQRTPI M_2_SQRTPIq
87# define M_SQRT2 M_SQRT2q
88# define M_SQRT1_2 M_SQRT1_2q
89
90#else
91
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92# ifdef USE_LONG_DOUBLE
93# undef M_E
94# undef M_LOG2E
95# undef M_LOG10E
96# undef M_LN2
97# undef M_LN10
98# undef M_PI
99# undef M_PI_2
100# undef M_PI_4
101# undef M_1_PI
102# undef M_2_PI
103# undef M_2_SQRTPI
104# undef M_SQRT2
105# undef M_SQRT1_2
106# define FLOAT_C(c) CAT2(c,L)
107# else
108# define FLOAT_C(c) (c)
109# endif
110
05b4a618 111# ifndef M_E
19035550 112# define M_E FLOAT_C(2.71828182845904523536028747135266250)
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113# endif
114# ifndef M_LOG2E
19035550 115# define M_LOG2E FLOAT_C(1.44269504088896340735992468100189214)
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116# endif
117# ifndef M_LOG10E
19035550 118# define M_LOG10E FLOAT_C(0.434294481903251827651128918916605082)
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119# endif
120# ifndef M_LN2
19035550 121# define M_LN2 FLOAT_C(0.693147180559945309417232121458176568)
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122# endif
123# ifndef M_LN10
19035550 124# define M_LN10 FLOAT_C(2.30258509299404568401799145468436421)
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125# endif
126# ifndef M_PI
19035550 127# define M_PI FLOAT_C(3.14159265358979323846264338327950288)
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128# endif
129# ifndef M_PI_2
19035550 130# define M_PI_2 FLOAT_C(1.57079632679489661923132169163975144)
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131# endif
132# ifndef M_PI_4
19035550 133# define M_PI_4 FLOAT_C(0.785398163397448309615660845819875721)
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134# endif
135# ifndef M_1_PI
19035550 136# define M_1_PI FLOAT_C(0.318309886183790671537767526745028724)
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137# endif
138# ifndef M_2_PI
19035550 139# define M_2_PI FLOAT_C(0.636619772367581343075535053490057448)
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140# endif
141# ifndef M_2_SQRTPI
19035550 142# define M_2_SQRTPI FLOAT_C(1.12837916709551257389615890312154517)
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143# endif
144# ifndef M_SQRT2
19035550 145# define M_SQRT2 FLOAT_C(1.41421356237309504880168872420969808)
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146# endif
147# ifndef M_SQRT1_2
19035550 148# define M_SQRT1_2 FLOAT_C(0.707106781186547524400844362104849039)
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149# endif
150
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151#endif
152
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153#if !defined(INFINITY) && defined(NV_INF)
154# define INFINITY NV_INF
155#endif
156
157#if !defined(NAN) && defined(NV_NAN)
158# define NAN NV_NAN
159#endif
160
161#if !defined(Inf) && defined(NV_INF)
162# define Inf NV_INF
163#endif
164
165#if !defined(NaN) && defined(NV_NAN)
166# define NaN NV_NAN
167#endif
168
935e3c48 169/* We will have an emulation. */
3f8e6f93 170#ifndef FP_INFINITE
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171# define FP_INFINITE 0
172# define FP_NAN 1
173# define FP_NORMAL 2
174# define FP_SUBNORMAL 3
175# define FP_ZERO 4
176#endif
177
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178/* We will have an emulation. */
179#ifndef FE_TONEAREST
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180# define FE_TOWARDZERO 0
181# define FE_TONEAREST 1
182# define FE_UPWARD 2
183# define FE_DOWNWARD 3
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184#endif
185
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186/* C89 math.h:
187
188 acos asin atan atan2 ceil cos cosh exp fabs floor fmod frexp ldexp
189 log log10 modf pow sin sinh sqrt tan tanh
190
191 * Implemented in core:
192
193 atan2 cos exp log pow sin sqrt
194
9d233e12 195 * C99 math.h added:
7965edec 196
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197 acosh asinh atanh cbrt copysign erf erfc exp2 expm1 fdim fma fmax
198 fmin fpclassify hypot ilogb isfinite isgreater isgreaterequal isinf
199 isless islessequal islessgreater isnan isnormal isunordered lgamma
9e010b89 200 log1p log2 logb lrint lround nan nearbyint nextafter nexttoward remainder
9d233e12 201 remquo rint round scalbn signbit tgamma trunc
7965edec 202
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203 See:
204 http://pubs.opengroup.org/onlinepubs/009695399/basedefs/math.h.html
205
26e0f0d3 206 * Berkeley/SVID extensions:
7965edec 207
26e0f0d3 208 j0 j1 jn y0 y1 yn
7965edec 209
427d28ce 210 * Configure already (5.21.5) scans for:
d2bce0fd 211
427d28ce 212 copysign*l* fpclassify isfinite isinf isnan isnan*l* ilogb*l* signbit scalbn*l*
d2bce0fd 213
26e0f0d3 214 * For floating-point round mode (which matters for e.g. lrint and rint)
9d233e12 215
26e0f0d3 216 fegetround fesetround
9d233e12 217
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218*/
219
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220/* XXX Constant FP_FAST_FMA (if true, FMA is faster) */
221
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222/* XXX Add ldiv(), lldiv()? It's C99, but from stdlib.h, not math.h */
223
39b5f1c4 224/* XXX Beware old gamma() -- one cannot know whether that is the
d334ccbe 225 * gamma or the log of gamma, that's why the new tgamma and lgamma.
2e9cdb62 226 * Though also remember lgamma_r. */
39b5f1c4 227
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228/* Certain AIX releases have the C99 math, but not in long double.
229 * The <math.h> has them, e.g. __expl128, but no library has them!
78c93c95 230 *
42f1389c 231 * Also see the comments in hints/aix.sh about long doubles. */
e0972548 232
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233#if defined(USE_QUADMATH) && defined(I_QUADMATH)
234# define c99_acosh acoshq
235# define c99_asinh asinhq
236# define c99_atanh atanhq
237# define c99_cbrt cbrtq
238# define c99_copysign copysignq
239# define c99_erf erfq
240# define c99_erfc erfcq
05b4a618 241/* no exp2q */
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242# define c99_expm1 expm1q
243# define c99_fdim fdimq
244# define c99_fma fmaq
245# define c99_fmax fmaxq
246# define c99_fmin fminq
247# define c99_hypot hypotq
248# define c99_ilogb ilogbq
249# define c99_lgamma lgammaq
250# define c99_log1p log1pq
251# define c99_log2 log2q
05b4a618 252/* no logbq */
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253# if defined(USE_64_BIT_INT) && QUADKIND == QUAD_IS_LONG_LONG
254# define c99_lrint llrintq
255# define c99_lround llroundq
256# else
257# define c99_lrint lrintq
258# define c99_lround lroundq
259# endif
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260# define c99_nan nanq
261# define c99_nearbyint nearbyintq
262# define c99_nextafter nextafterq
05b4a618 263/* no nexttowardq */
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264# define c99_remainder remainderq
265# define c99_remquo remquoq
266# define c99_rint rintq
267# define c99_round roundq
268# define c99_scalbn scalbnq
269# define c99_signbit signbitq
270# define c99_tgamma tgammaq
271# define c99_trunc truncq
272# define bessel_j0 j0q
273# define bessel_j1 j1q
274# define bessel_jn jnq
275# define bessel_y0 y0q
276# define bessel_y1 y1q
277# define bessel_yn ynq
278#elif defined(USE_LONG_DOUBLE) && \
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279 (defined(HAS_FREXPL) || defined(HAS_ILOGBL)) && defined(HAS_SQRTL)
280/* Use some of the Configure scans for long double math functions
281 * as the canary for all the C99 *l variants being defined. */
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282# define c99_acosh acoshl
283# define c99_asinh asinhl
284# define c99_atanh atanhl
285# define c99_cbrt cbrtl
286# define c99_copysign copysignl
287# define c99_erf erfl
288# define c99_erfc erfcl
289# define c99_exp2 exp2l
290# define c99_expm1 expm1l
291# define c99_fdim fdiml
292# define c99_fma fmal
293# define c99_fmax fmaxl
294# define c99_fmin fminl
295# define c99_hypot hypotl
296# define c99_ilogb ilogbl
297# define c99_lgamma lgammal
298# define c99_log1p log1pl
299# define c99_log2 log2l
300# define c99_logb logbl
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301# if defined(USE_64_BIT_INT) && QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LLRINTL)
302# define c99_lrint llrintl
303# elif defined(HAS_LRINTL)
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304# define c99_lrint lrintl
305# endif
755cce00 306# if defined(USE_64_BIT_INT) && QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LLROUNDL)
f1498836 307# define c99_lround llroundl
755cce00 308# elif defined(HAS_LROUNDL)
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309# define c99_lround lroundl
310# endif
311# define c99_nan nanl
312# define c99_nearbyint nearbyintl
313# define c99_nextafter nextafterl
314# define c99_nexttoward nexttowardl
315# define c99_remainder remainderl
316# define c99_remquo remquol
317# define c99_rint rintl
318# define c99_round roundl
319# define c99_scalbn scalbnl
320# ifdef HAS_SIGNBIT /* possibly bad assumption */
321# define c99_signbit signbitl
322# endif
323# define c99_tgamma tgammal
324# define c99_trunc truncl
325#else
326# define c99_acosh acosh
327# define c99_asinh asinh
328# define c99_atanh atanh
329# define c99_cbrt cbrt
330# define c99_copysign copysign
331# define c99_erf erf
332# define c99_erfc erfc
333# define c99_exp2 exp2
334# define c99_expm1 expm1
335# define c99_fdim fdim
336# define c99_fma fma
337# define c99_fmax fmax
338# define c99_fmin fmin
339# define c99_hypot hypot
340# define c99_ilogb ilogb
341# define c99_lgamma lgamma
342# define c99_log1p log1p
343# define c99_log2 log2
344# define c99_logb logb
345# if defined(USE_64_BIT_INT) && QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LLRINT)
346# define c99_lrint llrint
347# else
348# define c99_lrint lrint
349# endif
350# if defined(USE_64_BIT_INT) && QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LLROUND)
351# define c99_lround llround
7965edec 352# else
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353# define c99_lround lround
354# endif
355# define c99_nan nan
356# define c99_nearbyint nearbyint
357# define c99_nextafter nextafter
358# define c99_nexttoward nexttoward
359# define c99_remainder remainder
360# define c99_remquo remquo
361# define c99_rint rint
362# define c99_round round
363# define c99_scalbn scalbn
5716d070 364/* We already define Perl_signbit in perl.h. */
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365# ifdef HAS_SIGNBIT
366# define c99_signbit signbit
7965edec 367# endif
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368# define c99_tgamma tgamma
369# define c99_trunc trunc
370#endif
03397f96 371
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372/* AIX xlc (__IBMC__) really doesn't have the following long double
373 * math interfaces (no __acoshl128 aka acoshl, etc.), see
374 * hints/aix.sh. These are in the -lc128 but fail to be found
375 * during dynamic linking/loading.
376 *
377 * XXX1 Better Configure scans
378 * XXX2 Is this xlc version dependent? */
379#if defined(USE_LONG_DOUBLE) && defined(__IBMC__)
380# undef c99_acosh
381# undef c99_asinh
382# undef c99_atanh
383# undef c99_cbrt
384# undef c99_copysign
385# undef c99_exp2
386# undef c99_expm1
387# undef c99_fdim
388# undef c99_fma
389# undef c99_fmax
390# undef c99_fmin
391# undef c99_hypot
392# undef c99_ilogb
393# undef c99_lrint
394# undef c99_lround
395# undef c99_log1p
396# undef c99_log2
397# undef c99_logb
398# undef c99_nan
399# undef c99_nearbyint
400# undef c99_nextafter
401# undef c99_nexttoward
402# undef c99_remainder
403# undef c99_remquo
404# undef c99_rint
405# undef c99_round
406# undef c99_scalbn
407# undef c99_tgamma
408# undef c99_trunc
409#endif
410
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411#ifndef isunordered
412# ifdef Perl_isnan
413# define isunordered(x, y) (Perl_isnan(x) || Perl_isnan(y))
414# elif defined(HAS_UNORDERED)
415# define isunordered(x, y) unordered(x, y)
2bf3fd6f 416# endif
f1498836 417#endif
2bf3fd6f 418
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419/* XXX these isgreater/isnormal/isunordered macros definitions should
420 * be moved further in the file to be part of the emulations, so that
421 * platforms can e.g. #undef c99_isunordered and have it work like
422 * it does for the other interfaces. */
423
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424#if !defined(isgreater) && defined(isunordered)
425# define isgreater(x, y) (!isunordered((x), (y)) && (x) > (y))
426# define isgreaterequal(x, y) (!isunordered((x), (y)) && (x) >= (y))
427# define isless(x, y) (!isunordered((x), (y)) && (x) < (y))
428# define islessequal(x, y) (!isunordered((x), (y)) && (x) <= (y))
429# define islessgreater(x, y) (!isunordered((x), (y)) && \
2bf3fd6f 430 ((x) > (y) || (y) > (x)))
f1498836 431#endif
2bf3fd6f 432
03397f96 433/* Check both the Configure symbol and the macro-ness (like C99 promises). */
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434#if defined(HAS_FPCLASSIFY) && defined(fpclassify)
435# define c99_fpclassify fpclassify
436#endif
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437/* Like isnormal(), the isfinite(), isinf(), and isnan() are also C99
438 and also (sizeof-arg-aware) macros, but they are already well taken
439 care of by Configure et al, and defined in perl.h as
440 Perl_isfinite(), Perl_isinf(), and Perl_isnan(). */
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441#ifdef isnormal
442# define c99_isnormal isnormal
443#endif
444#ifdef isgreater /* canary for all the C99 is*<cmp>* macros. */
445# define c99_isgreater isgreater
446# define c99_isgreaterequal isgreaterequal
447# define c99_isless isless
448# define c99_islessequal islessequal
449# define c99_islessgreater islessgreater
450# define c99_isunordered isunordered
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451#endif
452
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453/* The Great Wall of Undef where according to the definedness of HAS_FOO symbols
454 * the corresponding c99_foo wrappers are undefined. This list doesn't include
455 * the isfoo() interfaces because they are either type-aware macros, or dealt
456 * separately, already in perl.h */
457
458#ifndef HAS_ACOSH
459# undef c99_acosh
460#endif
461#ifndef HAS_ASINH
462# undef c99_asinh
463#endif
464#ifndef HAS_ATANH
465# undef c99_atanh
466#endif
467#ifndef HAS_CBRT
468# undef c99_cbrt
469#endif
470#ifndef HAS_COPYSIGN
471# undef c99_copysign
472#endif
473#ifndef HAS_ERF
474# undef c99_erf
475#endif
476#ifndef HAS_ERFC
477# undef c99_erfc
478#endif
479#ifndef HAS_EXP2
480# undef c99_exp2
481#endif
482#ifndef HAS_EXPM1
483# undef c99_expm1
484#endif
485#ifndef HAS_FDIM
486# undef c99_fdim
487#endif
488#ifndef HAS_FMA
489# undef c99_fma
490#endif
491#ifndef HAS_FMAX
492# undef c99_fmax
493#endif
494#ifndef HAS_FMIN
495# undef c99_fmin
496#endif
497#ifndef HAS_FPCLASSIFY
498# undef c99_fpclassify
499#endif
500#ifndef HAS_HYPOT
501# undef c99_hypot
502#endif
503#ifndef HAS_ILOGB
504# undef c99_ilogb
505#endif
506#ifndef HAS_LGAMMA
507# undef c99_lgamma
508#endif
509#ifndef HAS_LOG1P
510# undef c99_log1p
511#endif
512#ifndef HAS_LOG2
513# undef c99_log2
514#endif
515#ifndef HAS_LOGB
516# undef c99_logb
517#endif
518#ifndef HAS_LRINT
519# undef c99_lrint
520#endif
521#ifndef HAS_LROUND
522# undef c99_lround
523#endif
524#ifndef HAS_NAN
525# undef c99_nan
526#endif
527#ifndef HAS_NEARBYINT
528# undef c99_nearbyint
529#endif
530#ifndef HAS_NEXTAFTER
531# undef c99_nextafter
532#endif
533#ifndef HAS_NEXTTOWARD
534# undef c99_nexttoward
535#endif
536#ifndef HAS_REMAINDER
537# undef c99_remainder
538#endif
539#ifndef HAS_REMQUO
540# undef c99_remquo
541#endif
542#ifndef HAS_RINT
543# undef c99_rint
544#endif
545#ifndef HAS_ROUND
546# undef c99_round
547#endif
548#ifndef HAS_SCALBN
549# undef c99_scalbn
550#endif
551#ifndef HAS_SIGNBIT
552# undef c99_signbit
553#endif
554#ifndef HAS_TGAMMA
555# undef c99_tgamma
556#endif
557#ifndef HAS_TRUNC
558# undef c99_trunc
559#endif
560
bfce4ab3 561#ifdef WIN32
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562
563/* Some APIs exist under Win32 with "underbar" names. */
564# undef c99_hypot
565# undef c99_logb
566# undef c99_nextafter
567# define c99_hypot _hypot
568# define c99_logb _logb
569# define c99_nextafter _nextafter
570
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571# define bessel_j0 _j0
572# define bessel_j1 _j1
573# define bessel_jn _jn
574# define bessel_y0 _y0
575# define bessel_y1 _y1
576# define bessel_yn _yn
577
5716d070 578#endif
bfce4ab3 579
39b5f1c4 580/* The Bessel functions: BSD, SVID, XPG4, and POSIX. But not C99. */
05b4a618 581#if defined(HAS_J0) && !defined(bessel_j0)
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582# if defined(USE_LONG_DOUBLE) && defined(HAS_J0L)
583# define bessel_j0 j0l
584# define bessel_j1 j1l
585# define bessel_jn jnl
586# define bessel_y0 y0l
587# define bessel_y1 y1l
588# define bessel_yn ynl
589# else
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590# define bessel_j0 j0
591# define bessel_j1 j1
592# define bessel_jn jn
593# define bessel_y0 y0
594# define bessel_y1 y1
595# define bessel_yn yn
5716d070 596# endif
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597#endif
598
39b5f1c4 599/* Emulations for missing math APIs.
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600 *
601 * Keep in mind that the point of many of these functions is that
602 * they, if available, are supposed to give more precise/more
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603 * numerically stable results.
604 *
605 * See e.g. http://www.johndcook.com/math_h.html
606 */
607
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608#ifndef c99_acosh
609static NV my_acosh(NV x)
610{
611 return Perl_log(x + Perl_sqrt(x * x - 1));
612}
613# define c99_acosh my_acosh
614#endif
615
616#ifndef c99_asinh
617static NV my_asinh(NV x)
618{
619 return Perl_log(x + Perl_sqrt(x * x + 1));
620}
621# define c99_asinh my_asinh
622#endif
623
624#ifndef c99_atanh
625static NV my_atanh(NV x)
626{
627 return (Perl_log(1 + x) - Perl_log(1 - x)) / 2;
628}
629# define c99_atanh my_atanh
630#endif
631
632#ifndef c99_cbrt
633static NV my_cbrt(NV x)
634{
635 static const NV one_third = (NV)1.0/3;
636 return x >= 0.0 ? Perl_pow(x, one_third) : -Perl_pow(-x, one_third);
637}
638# define c99_cbrt my_cbrt
639#endif
640
641#ifndef c99_copysign
642static NV my_copysign(NV x, NV y)
643{
644 return y >= 0 ? (x < 0 ? -x : x) : (x < 0 ? x : -x);
645}
646# define c99_copysign my_copysign
647#endif
648
1ae51000 649/* XXX cosh (though c89) */
d5f4f26a 650
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651#ifndef c99_erf
652static NV my_erf(NV x)
653{
654 /* http://www.johndcook.com/cpp_erf.html -- public domain */
655 NV a1 = 0.254829592;
656 NV a2 = -0.284496736;
657 NV a3 = 1.421413741;
658 NV a4 = -1.453152027;
659 NV a5 = 1.061405429;
660 NV p = 0.3275911;
efc74307 661 NV t, y;
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662 int sign = x < 0 ? -1 : 1; /* Save the sign. */
663 x = PERL_ABS(x);
664
665 /* Abramowitz and Stegun formula 7.1.26 */
efc74307 666 t = 1.0 / (1.0 + p * x);
6347c79c 667 y = 1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1) * t * Perl_exp(-x*x);
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668
669 return sign * y;
670}
671# define c99_erf my_erf
672#endif
673
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674#ifndef c99_erfc
675static NV my_erfc(NV x) {
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676 /* This is not necessarily numerically stable, but better than nothing. */
677 return 1.0 - c99_erf(x);
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678}
679# define c99_erfc my_erfc
680#endif
d5f4f26a 681
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682#ifndef c99_exp2
683static NV my_exp2(NV x)
684{
685 return Perl_pow((NV)2.0, x);
686}
687# define c99_exp2 my_exp2
688#endif
689
690#ifndef c99_expm1
691static NV my_expm1(NV x)
692{
693 if (PERL_ABS(x) < 1e-5)
7895eac5 694 /* http://www.johndcook.com/cpp_expm1.html -- public domain.
2783359f 695 * Taylor series, the first four terms (the last term quartic). */
39b5f1c4 696 /* Probably not enough for long doubles. */
2783359f 697 return x * (1.0 + x * (1/2.0 + x * (1/6.0 + x/24.0)));
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698 else
699 return Perl_exp(x) - 1;
700}
701# define c99_expm1 my_expm1
702#endif
703
704#ifndef c99_fdim
705static NV my_fdim(NV x, NV y)
706{
eaa53991 707 return (Perl_isnan(x) || Perl_isnan(y)) ? NV_NAN : (x > y ? x - y : 0);
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708}
709# define c99_fdim my_fdim
710#endif
711
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712#ifndef c99_fma
713static NV my_fma(NV x, NV y, NV z)
714{
715 return (x * y) + z;
716}
717# define c99_fma my_fma
718#endif
719
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720#ifndef c99_fmax
721static NV my_fmax(NV x, NV y)
722{
723 if (Perl_isnan(x)) {
724 return Perl_isnan(y) ? NV_NAN : y;
725 } else if (Perl_isnan(y)) {
726 return x;
727 }
728 return x > y ? x : y;
729}
730# define c99_fmax my_fmax
731#endif
732
733#ifndef c99_fmin
734static NV my_fmin(NV x, NV y)
735{
736 if (Perl_isnan(x)) {
737 return Perl_isnan(y) ? NV_NAN : y;
738 } else if (Perl_isnan(y)) {
739 return x;
740 }
741 return x < y ? x : y;
742}
743# define c99_fmin my_fmin
744#endif
745
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746#ifndef c99_fpclassify
747
ea464252 748static IV my_fpclassify(NV x)
935e3c48 749{
c3607571 750#ifdef Perl_fp_class_inf
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751 if (Perl_fp_class_inf(x)) return FP_INFINITE;
752 if (Perl_fp_class_nan(x)) return FP_NAN;
753 if (Perl_fp_class_norm(x)) return FP_NORMAL;
754 if (Perl_fp_class_denorm(x)) return FP_SUBNORMAL;
755 if (Perl_fp_class_zero(x)) return FP_ZERO;
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756# define c99_fpclassify my_fpclassify
757#endif
c3607571 758 return -1;
935e3c48 759}
935e3c48 760
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761#endif
762
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763#ifndef c99_hypot
764static NV my_hypot(NV x, NV y)
765{
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766 /* http://en.wikipedia.org/wiki/Hypot */
767 NV t;
768 x = PERL_ABS(x); /* Take absolute values. */
769 if (y == 0)
770 return x;
771 if (Perl_isnan(y))
772 return NV_INF;
773 y = PERL_ABS(y);
774 if (x < y) { /* Swap so that y is less. */
775 t = x;
776 x = y;
777 y = t;
39b5f1c4 778 }
7bbf2c9b 779 t = y / x;
6347c79c 780 return x * Perl_sqrt(1.0 + t * t);
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781}
782# define c99_hypot my_hypot
783#endif
784
785#ifndef c99_ilogb
786static IV my_ilogb(NV x)
787{
788 return (IV)(Perl_log(x) * M_LOG2E);
789}
790# define c99_ilogb my_ilogb
791#endif
792
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793/* tgamma and lgamma emulations based on
794 * http://www.johndcook.com/cpp_gamma.html,
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795 * code placed in public domain.
796 *
797 * Note that these implementations (neither the johndcook originals
798 * nor these) do NOT set the global signgam variable. This is not
799 * necessarily a bad thing. */
800
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801/* Note that the tgamma() and lgamma() implementations
802 * here depend on each other. */
256fef93 803
dc7cecfb 804#if !defined(HAS_TGAMMA) || !defined(c99_tgamma)
2e9cdb62 805static NV my_tgamma(NV x);
256fef93 806# define c99_tgamma my_tgamma
dc7cecfb 807# define USE_MY_TGAMMA
256fef93 808#endif
dc7cecfb 809#if !defined(HAS_LGAMMA) || !defined(c99_lgamma)
2e9cdb62 810static NV my_lgamma(NV x);
256fef93 811# define c99_lgamma my_lgamma
dc7cecfb 812# define USE_MY_LGAMMA
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813#endif
814
dc7cecfb 815#ifdef USE_MY_TGAMMA
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816static NV my_tgamma(NV x)
817{
f5802bf0 818 const NV gamma = 0.577215664901532860606512090; /* Euler's gamma constant. */
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819 if (Perl_isnan(x) || x < 0.0)
820 return NV_NAN;
821 if (x == 0.0 || x == NV_INF)
822 return x == -0.0 ? -NV_INF : NV_INF;
823
824 /* The function domain is split into three intervals:
825 * (0, 0.001), [0.001, 12), and (12, infinity) */
826
827 /* First interval: (0, 0.001)
f5802bf0 828 * For small values, 1/tgamma(x) has power series x + gamma x^2,
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829 * so in this range, 1/tgamma(x) = x + gamma x^2 with error on the order of x^3.
830 * The relative error over this interval is less than 6e-7. */
831 if (x < 0.001)
832 return 1.0 / (x * (1.0 + gamma * x));
833
834 /* Second interval: [0.001, 12) */
835 if (x < 12.0) {
836 double y = x; /* Working copy. */
837 int n = 0;
838 /* Numerator coefficients for approximation over the interval (1,2) */
839 static const NV p[] = {
840 -1.71618513886549492533811E+0,
841 2.47656508055759199108314E+1,
842 -3.79804256470945635097577E+2,
843 6.29331155312818442661052E+2,
844 8.66966202790413211295064E+2,
845 -3.14512729688483675254357E+4,
846 -3.61444134186911729807069E+4,
847 6.64561438202405440627855E+4
848 };
849 /* Denominator coefficients for approximation over the interval (1, 2) */
850 static const NV q[] = {
851 -3.08402300119738975254353E+1,
852 3.15350626979604161529144E+2,
853 -1.01515636749021914166146E+3,
854 -3.10777167157231109440444E+3,
855 2.25381184209801510330112E+4,
856 4.75584627752788110767815E+3,
857 -1.34659959864969306392456E+5,
858 -1.15132259675553483497211E+5
859 };
860 NV num = 0.0;
861 NV den = 1.0;
862 NV z;
863 NV result;
864 int i;
865
866 if (x < 1.0)
867 y += 1.0;
868 else {
5306a04c 869 n = (int)Perl_floor(y) - 1;
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870 y -= n;
871 }
872 z = y - 1;
873 for (i = 0; i < 8; i++) {
874 num = (num + p[i]) * z;
875 den = den * z + q[i];
876 }
877 result = num / den + 1.0;
878
879 if (x < 1.0) {
880 /* Use the identity tgamma(z) = tgamma(z+1)/z
881 * The variable "result" now holds tgamma of the original y + 1
882 * Thus we use y - 1 to get back the original y. */
883 result /= (y - 1.0);
884 }
885 else {
886 /* Use the identity tgamma(z+n) = z*(z+1)* ... *(z+n-1)*tgamma(z) */
887 for (i = 0; i < n; i++)
888 result *= y++;
889 }
890
891 return result;
892 }
893
894 /* Third interval: [12, +Inf) */
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895#if LDBL_MANT_DIG == 113 /* IEEE quad prec */
896 if (x > 1755.548) {
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897 return NV_INF;
898 }
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899#else
900 if (x > 171.624) {
901 return NV_INF;
902 }
903#endif
2e9cdb62 904
256fef93 905 return Perl_exp(c99_lgamma(x));
2e9cdb62 906}
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907#endif
908
dc7cecfb 909#ifdef USE_MY_LGAMMA
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910static NV my_lgamma(NV x)
911{
912 if (Perl_isnan(x))
913 return NV_NAN;
914 if (x <= 0 || x == NV_INF)
915 return NV_INF;
916 if (x == 1.0 || x == 2.0)
917 return 0;
918 if (x < 12.0)
256fef93 919 return Perl_log(PERL_ABS(c99_tgamma(x)));
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920 /* Abramowitz and Stegun 6.1.41
921 * Asymptotic series should be good to at least 11 or 12 figures
922 * For error analysis, see Whittiker and Watson
923 * A Course in Modern Analysis (1927), page 252 */
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924 {
925 static const NV c[8] = {
926 1.0/12.0,
927 -1.0/360.0,
928 1.0/1260.0,
929 -1.0/1680.0,
930 1.0/1188.0,
931 -691.0/360360.0,
932 1.0/156.0,
933 -3617.0/122400.0
934 };
935 NV z = 1.0 / (x * x);
936 NV sum = c[7];
937 static const NV half_log_of_two_pi =
938 0.91893853320467274178032973640562;
939 NV series;
940 int i;
941 for (i = 6; i >= 0; i--) {
942 sum *= z;
943 sum += c[i];
944 }
945 series = sum / x;
946 return (x - 0.5) * Perl_log(x) - x + half_log_of_two_pi + series;
947 }
948}
2e9cdb62 949#endif
d5f4f26a 950
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951#ifndef c99_log1p
952static NV my_log1p(NV x)
953{
7895eac5 954 /* http://www.johndcook.com/cpp_log_one_plus_x.html -- public domain.
2783359f 955 * Taylor series, the first four terms (the last term quartic). */
3ae4cd6c 956 if (x < -1.0)
731a2bdb 957 return NV_NAN;
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958 if (x == -1.0)
959 return -NV_INF;
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960 if (PERL_ABS(x) > 1e-4)
961 return Perl_log(1.0 + x);
962 else
963 /* Probably not enough for long doubles. */
2783359f 964 return x * (1.0 + x * (-1/2.0 + x * (1/3.0 - x/4.0)));
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965}
966# define c99_log1p my_log1p
967#endif
968
969#ifndef c99_log2
970static NV my_log2(NV x)
971{
972 return Perl_log(x) * M_LOG2E;
973}
974# define c99_log2 my_log2
975#endif
976
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977/* XXX nextafter */
978
979/* XXX nexttoward */
980
981static int my_fegetround()
982{
983#ifdef HAS_FEGETROUND
984 return fegetround();
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985#elif defined(HAS_FPGETROUND)
986 switch (fpgetround()) {
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987 case FP_RN: return FE_TONEAREST;
988 case FP_RZ: return FE_TOWARDZERO;
989 case FP_RM: return FE_DOWNWARD;
cc639810 990 case FP_RP: return FE_UPWARD;
9d491117 991 default: return -1;
e0939537 992 }
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993#elif defined(FLT_ROUNDS)
994 switch (FLT_ROUNDS) {
c35bb41d 995 case 0: return FE_TOWARDZERO;
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996 case 1: return FE_TONEAREST;
997 case 2: return FE_UPWARD;
998 case 3: return FE_DOWNWARD;
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999 default: return -1;
1000 }
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1001#elif defined(__osf__) /* Tru64 */
1002 switch (read_rnd()) {
1003 case FP_RND_RN: return FE_TONEAREST;
1004 case FP_RND_RZ: return FE_TOWARDZERO;
1005 case FP_RND_RM: return FE_DOWNWARD;
1006 case FP_RND_RP: return FE_UPWARD;
1007 default: return -1;
1008 }
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1009#else
1010 return -1;
1011#endif
1012}
1013
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1014/* Toward closest integer. */
1015#define MY_ROUND_NEAREST(x) ((NV)((IV)((x) >= 0.0 ? (x) + 0.5 : (x) - 0.5)))
1016
1017/* Toward zero. */
1018#define MY_ROUND_TRUNC(x) ((NV)((IV)(x)))
1019
e0939537 1020/* Toward minus infinity. */
c4125715 1021#define MY_ROUND_DOWN(x) ((NV)((IV)((x) >= 0.0 ? (x) : (x) - 0.5)))
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1022
1023/* Toward plus infinity. */
c4125715 1024#define MY_ROUND_UP(x) ((NV)((IV)((x) >= 0.0 ? (x) + 0.5 : (x))))
e0939537 1025
5a4dabf8 1026#if (!defined(c99_nearbyint) || !defined(c99_lrint)) && defined(FE_TONEAREST)
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1027static NV my_rint(NV x)
1028{
1029#ifdef FE_TONEAREST
1030 switch (my_fegetround()) {
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1031 case FE_TONEAREST: return MY_ROUND_NEAREST(x);
1032 case FE_TOWARDZERO: return MY_ROUND_TRUNC(x);
1033 case FE_DOWNWARD: return MY_ROUND_DOWN(x);
1034 case FE_UPWARD: return MY_ROUND_UP(x);
9d491117 1035 default: return NV_NAN;
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1036 }
1037#elif defined(HAS_FPGETROUND)
1038 switch (fpgetround()) {
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1039 case FP_RN: return MY_ROUND_NEAREST(x);
1040 case FP_RZ: return MY_ROUND_TRUNC(x);
1041 case FP_RM: return MY_ROUND_DOWN(x);
1042 case FE_RP: return MY_ROUND_UP(x);
9d491117 1043 default: return NV_NAN;
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1044 }
1045#else
1046 return NV_NAN;
1047#endif
1048}
5a4dabf8 1049#endif
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1050
1051/* XXX nearbyint() and rint() are not really identical -- but the difference
1052 * is messy: nearbyint is defined NOT to raise FE_INEXACT floating point
1053 * exceptions, while rint() is defined to MAYBE raise them. At the moment
1054 * Perl is blissfully unaware of such fine detail of floating point. */
1055#ifndef c99_nearbyint
1056# ifdef FE_TONEAREST
1057# define c99_nearbyrint my_rint
1058# endif
1059#endif
1060
1061#ifndef c99_lrint
1062# ifdef FE_TONEAREST
c40e90c4 1063static IV my_lrint(NV x)
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1064{
1065 return (IV)my_rint(x);
1066}
1067# define c99_lrint my_lrint
1068# endif
1069#endif
1070
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1071#ifndef c99_lround
1072static IV my_lround(NV x)
1073{
c63c00af 1074 return (IV)MY_ROUND_NEAREST(x);
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JH
1075}
1076# define c99_lround my_lround
1077#endif
1078
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1079/* XXX remainder */
1080
1081/* XXX remquo */
1082
1083#ifndef c99_rint
1084# ifdef FE_TONEAREST
1085# define c99_rint my_rint
1086# endif
1087#endif
1088
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1089#ifndef c99_round
1090static NV my_round(NV x)
1091{
c4125715 1092 return MY_ROUND_NEAREST(x);
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1093}
1094# define c99_round my_round
1095#endif
1096
1097#ifndef c99_scalbn
93ddb856 1098# if defined(Perl_ldexp) && FLT_RADIX == 2
ea464252 1099static NV my_scalbn(NV x, int y)
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1100{
1101 return Perl_ldexp(x, y);
1102}
1103# define c99_scalbn my_scalbn
1104# endif
1105#endif
1106
1ae51000 1107/* XXX sinh (though c89) */
39b5f1c4 1108
2e9cdb62 1109/* tgamma -- see lgamma */
bfce4ab3 1110
1ae51000 1111/* XXX tanh (though c89) */
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JH
1112
1113#ifndef c99_trunc
1114static NV my_trunc(NV x)
1115{
c4125715 1116 return MY_ROUND_TRUNC(x);
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JH
1117}
1118# define c99_trunc my_trunc
1119#endif
1120
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1121#undef NV_PAYLOAD_DEBUG
1122
1123/* NOTE: the NaN payload API implementation is hand-rolled, since the
1124 * APIs are only proposed ones as of June 2015, so very few, if any,
1125 * platforms have implementations yet, so HAS_SETPAYLOAD and such are
1126 * unlikely to be helpful.
1127 *
1128 * XXX - if the core numification wants to actually generate
1129 * the nan payload in "nan(123)", and maybe "nans(456)", for
1130 * signaling payload", this needs to be moved to e.g. numeric.c
1131 * (look for grok_infnan)
1132 *
1133 * Conversely, if the core stringification wants the nan payload
1134 * and/or the nan quiet/signaling distinction, S_getpayload()
1135 * from this file needs to be moved, to e.g. sv.c (look for S_infnan_2pv),
1136 * and the (trivial) functionality of issignaling() copied
1137 * (for generating "NaNS", or maybe even "NaNQ") -- or maybe there
1138 * are too many formatting parameters for simple stringification?
1139 */
1140
1141/* While it might make sense for the payload to be UV or IV,
1142 * to avoid conversion loss, the proposed ISO interfaces use
1143 * a floating point input, which is then truncated to integer,
1144 * and only the integer part being used. This is workable,
1145 * except for: (1) the conversion loss (2) suboptimal for
1146 * 32-bit integer platforms. A workaround API for (2) and
1147 * in general for bit-honesty would be an array of integers
1148 * as the payload... but the proposed C API does nothing of
1149 * the kind. */
1150#if NVSIZE == UVSIZE
1151# define NV_PAYLOAD_TYPE UV
1152#else
1153# define NV_PAYLOAD_TYPE NV
1154#endif
1155
1156#ifdef LONGDOUBLE_DOUBLEDOUBLE
1157# define NV_PAYLOAD_SIZEOF_ASSERT(a) assert(sizeof(a) == NVSIZE / 2)
1158#else
1159# define NV_PAYLOAD_SIZEOF_ASSERT(a) assert(sizeof(a) == NVSIZE)
1160#endif
1161
1162static void S_setpayload(NV* nvp, NV_PAYLOAD_TYPE payload, bool signaling)
1163{
1164 dTHX;
1165 static const U8 m[] = { NV_NAN_PAYLOAD_MASK };
1166 static const U8 p[] = { NV_NAN_PAYLOAD_PERM };
1167 UV a[(NVSIZE + UVSIZE - 1) / UVSIZE] = { 0 };
1168 int i;
1169 NV_PAYLOAD_SIZEOF_ASSERT(m);
1170 NV_PAYLOAD_SIZEOF_ASSERT(p);
1171 *nvp = NV_NAN;
1172 /* Divide the input into the array in "base unsigned integer" in
1173 * little-endian order. Note that the integer might be smaller than
1174 * an NV (if UV is U32, for example). */
1175#if NVSIZE == UVSIZE
1176 a[0] = payload; /* The trivial case. */
1177#else
1178 {
1179 NV t1 = c99_trunc(payload); /* towards zero (drop fractional) */
1180#ifdef NV_PAYLOAD_DEBUG
1181 Perl_warn(aTHX_ "t1 = %"NVgf" (payload %"NVgf")\n", t1, payload);
1182#endif
1183 if (t1 <= UV_MAX) {
1184 a[0] = (UV)t1; /* Fast path, also avoids rounding errors (right?) */
1185 } else {
1186 /* UVSIZE < NVSIZE or payload > UV_MAX.
1187 *
1188 * This may happen for example if:
1189 * (1) UVSIZE == 32 and common 64-bit double NV
1190 * (32-bit system not using -Duse64bitint)
1191 * (2) UVSIZE == 64 and the x86-style 80-bit long double NV
1192 * (note that here the room for payload is actually the 64 bits)
1193 * (3) UVSIZE == 64 and the 128-bit IEEE 764 quadruple NV
1194 * (112 bits in mantissa, 111 bits room for payload)
1195 *
1196 * NOTE: this is very sensitive to correctly functioning
1197 * fmod()/fmodl(), and correct casting of big-unsigned-integer to NV.
1198 * If these don't work right, especially the low order bits
1199 * are in danger. For example Solaris and AIX seem to have issues
1200 * here, especially if using 32-bit UVs. */
1201 NV t2;
1202 for (i = 0, t2 = t1; i < (int)C_ARRAY_LENGTH(a); i++) {
1203 a[i] = (UV)Perl_fmod(t2, (NV)UV_MAX);
1204 t2 = Perl_floor(t2 / (NV)UV_MAX);
1205 }
1206 }
1207 }
1208#endif
1209#ifdef NV_PAYLOAD_DEBUG
1210 for (i = 0; i < (int)C_ARRAY_LENGTH(a); i++) {
1211 Perl_warn(aTHX_ "a[%d] = 0x%"UVxf"\n", i, a[i]);
1212 }
1213#endif
1214 for (i = 0; i < (int)sizeof(p); i++) {
1215 if (m[i] && p[i] < sizeof(p)) {
1216 U8 s = (p[i] % UVSIZE) << 3;
1217 UV u = a[p[i] / UVSIZE] & ((UV)0xFF << s);
1218 U8 b = (U8)((u >> s) & m[i]);
1219 ((U8 *)(nvp))[i] &= ~m[i]; /* For NaNs with non-zero payload bits. */
1220 ((U8 *)(nvp))[i] |= b;
1221#ifdef NV_PAYLOAD_DEBUG
1222 Perl_warn(aTHX_ "set p[%2d] = %02x (i = %d, m = %02x, s = %2d, b = %02x, u = %08"UVxf")\n", i, ((U8 *)(nvp))[i], i, m[i], s, b, u);
1223#endif
1224 a[p[i] / UVSIZE] &= ~u;
1225 }
1226 }
1227 if (signaling) {
1228 NV_NAN_SET_SIGNALING(nvp);
1229 }
1230#ifdef USE_LONG_DOUBLE
1231# if LONG_DOUBLEKIND == 3 || LONG_DOUBLEKIND == 4
2f125fcc 1232# if LONG_DOUBLESIZE > 10
07bb61ac 1233 memset((char *)nvp + 10, '\0', LONG_DOUBLESIZE - 10); /* x86 long double */
2f125fcc 1234# endif
07bb61ac
JH
1235# endif
1236#endif
1237 for (i = 0; i < (int)C_ARRAY_LENGTH(a); i++) {
1238 if (a[i]) {
1239 Perl_warn(aTHX_ "payload lost bits (%"UVxf")", a[i]);
1240 break;
1241 }
1242 }
1243#ifdef NV_PAYLOAD_DEBUG
1244 for (i = 0; i < NVSIZE; i++) {
1245 PerlIO_printf(Perl_debug_log, "%02x ", ((U8 *)(nvp))[i]);
1246 }
1247 PerlIO_printf(Perl_debug_log, "\n");
1248#endif
1249}
1250
1251static NV_PAYLOAD_TYPE S_getpayload(NV nv)
1252{
1253 dTHX;
1254 static const U8 m[] = { NV_NAN_PAYLOAD_MASK };
1255 static const U8 p[] = { NV_NAN_PAYLOAD_PERM };
1256 UV a[(NVSIZE + UVSIZE - 1) / UVSIZE] = { 0 };
1257 int i;
1258 NV payload;
1259 NV_PAYLOAD_SIZEOF_ASSERT(m);
1260 NV_PAYLOAD_SIZEOF_ASSERT(p);
1261 payload = 0;
1262 for (i = 0; i < (int)sizeof(p); i++) {
1263 if (m[i] && p[i] < NVSIZE) {
1264 U8 s = (p[i] % UVSIZE) << 3;
1265 a[p[i] / UVSIZE] |= (UV)(((U8 *)(&nv))[i] & m[i]) << s;
1266 }
1267 }
1268 for (i = (int)C_ARRAY_LENGTH(a) - 1; i >= 0; i--) {
1269#ifdef NV_PAYLOAD_DEBUG
1270 Perl_warn(aTHX_ "a[%d] = %"UVxf"\n", i, a[i]);
1271#endif
1272 payload *= UV_MAX;
1273 payload += a[i];
1274 }
1275#ifdef NV_PAYLOAD_DEBUG
1276 for (i = 0; i < NVSIZE; i++) {
1277 PerlIO_printf(Perl_debug_log, "%02x ", ((U8 *)(&nv))[i]);
1278 }
1279 PerlIO_printf(Perl_debug_log, "\n");
1280#endif
1281 return payload;
1282}
1283
3609ea0d 1284/* XXX This comment is just to make I_TERMIO and I_SGTTY visible to
a0d0e21e
LW
1285 metaconfig for future extension writers. We don't use them in POSIX.
1286 (This is really sneaky :-) --AD
1287*/
1288#if defined(I_TERMIOS)
1289#include <termios.h>
1290#endif
a0d0e21e 1291#ifdef I_STDLIB
2304df62 1292#include <stdlib.h>
a0d0e21e 1293#endif
5518ecd4 1294#ifndef __ultrix__
2304df62 1295#include <string.h>
5518ecd4 1296#endif
2304df62 1297#include <sys/stat.h>
2304df62 1298#include <sys/types.h>
2304df62 1299#include <time.h>
6dead956 1300#ifdef I_UNISTD
1d2dff63 1301#include <unistd.h>
6dead956 1302#endif
71be2cbc
PP
1303#include <fcntl.h>
1304
e2465f50 1305#ifdef HAS_TZNAME
fb207d52 1306# if !defined(WIN32) && !defined(__CYGWIN__) && !defined(NETWARE) && !defined(__UWIN__)
e2465f50
JH
1307extern char *tzname[];
1308# endif
1309#else
fb207d52 1310#if !defined(WIN32) && !defined(__UWIN__) || (defined(__MINGW32__) && !defined(tzname))
e2465f50
JH
1311char *tzname[] = { "" , "" };
1312#endif
cb2479a8
JH
1313#endif
1314
6c418a22 1315#if defined(__VMS) && !defined(__POSIX_SOURCE)
294c8bc4
CB
1316
1317# include <utsname.h>
6c418a22 1318
6990d991 1319# undef mkfifo
6c418a22 1320# define mkfifo(a,b) (not_here("mkfifo"),-1)
6c418a22
PP
1321
1322 /* The POSIX notion of ttyname() is better served by getname() under VMS */
1323 static char ttnambuf[64];
1324# define ttyname(fd) (isatty(fd) > 0 ? getname(fd,ttnambuf,0) : NULL)
1325
6c418a22 1326#else
d308986b 1327#if defined (__CYGWIN__)
f89d6eaa
FE
1328# define tzname _tzname
1329#endif
2986a63f 1330#if defined (WIN32) || defined (NETWARE)
6990d991 1331# undef mkfifo
6dead956 1332# define mkfifo(a,b) not_here("mkfifo")
873ef191 1333# define ttyname(a) (char*)not_here("ttyname")
6dead956 1334# define sigset_t long
86200d5c 1335# define pid_t long
6dead956
GS
1336# ifdef _MSC_VER
1337# define mode_t short
1338# endif
62520c91
GS
1339# ifdef __MINGW32__
1340# define mode_t short
f6c6487a
GS
1341# ifndef tzset
1342# define tzset() not_here("tzset")
1343# endif
1344# ifndef _POSIX_OPEN_MAX
1345# define _POSIX_OPEN_MAX FOPEN_MAX /* XXX bogus ? */
1346# endif
62520c91 1347# endif
6dead956
GS
1348# define sigaction(a,b,c) not_here("sigaction")
1349# define sigpending(a) not_here("sigpending")
1350# define sigprocmask(a,b,c) not_here("sigprocmask")
1351# define sigsuspend(a) not_here("sigsuspend")
1352# define sigemptyset(a) not_here("sigemptyset")
1353# define sigaddset(a,b) not_here("sigaddset")
1354# define sigdelset(a,b) not_here("sigdelset")
1355# define sigfillset(a) not_here("sigfillset")
1356# define sigismember(a,b) not_here("sigismember")
2986a63f 1357#ifndef NETWARE
6e22d046
JH
1358# undef setuid
1359# undef setgid
2986a63f
JH
1360# define setuid(a) not_here("setuid")
1361# define setgid(a) not_here("setgid")
1362#endif /* NETWARE */
d172007e 1363#ifndef USE_LONG_DOUBLE
73e21afd 1364# define strtold(s1,s2) not_here("strtold")
d172007e 1365#endif /* USE_LONG_DOUBLE */
6dead956 1366#else
6990d991
JH
1367
1368# ifndef HAS_MKFIFO
b3599c2e 1369# if defined(OS2) || defined(__amigaos4__)
d6a255e6 1370# define mkfifo(a,b) not_here("mkfifo")
3609ea0d 1371# else /* !( defined OS2 ) */
d6a255e6
IZ
1372# ifndef mkfifo
1373# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
1374# endif
6990d991
JH
1375# endif
1376# endif /* !HAS_MKFIFO */
1377
e37778c2
NC
1378# ifdef I_GRP
1379# include <grp.h>
1380# endif
1381# include <sys/times.h>
1382# ifdef HAS_UNAME
1383# include <sys/utsname.h>
6c418a22 1384# endif
ea34f6bd
AB
1385# ifndef __amigaos4__
1386# include <sys/wait.h>
1387# endif
6c418a22
PP
1388# ifdef I_UTIME
1389# include <utime.h>
1390# endif
2986a63f 1391#endif /* WIN32 || NETWARE */
6dead956 1392#endif /* __VMS */
2304df62
AD
1393
1394typedef int SysRet;
a0d0e21e 1395typedef long SysRetLong;
2304df62
AD
1396typedef sigset_t* POSIX__SigSet;
1397typedef HV* POSIX__SigAction;
69b5fd06 1398typedef int POSIX__SigNo;
ddc7c5c7 1399typedef int POSIX__Fd;
a0d0e21e
LW
1400#ifdef I_TERMIOS
1401typedef struct termios* POSIX__Termios;
1402#else /* Define termios types to int, and call not_here for the functions.*/
1403#define POSIX__Termios int
1404#define speed_t int
1405#define tcflag_t int
1406#define cc_t int
1407#define cfgetispeed(x) not_here("cfgetispeed")
1408#define cfgetospeed(x) not_here("cfgetospeed")
1409#define tcdrain(x) not_here("tcdrain")
1410#define tcflush(x,y) not_here("tcflush")
1411#define tcsendbreak(x,y) not_here("tcsendbreak")
1412#define cfsetispeed(x,y) not_here("cfsetispeed")
1413#define cfsetospeed(x,y) not_here("cfsetospeed")
1414#define ctermid(x) (char *) not_here("ctermid")
1415#define tcflow(x,y) not_here("tcflow")
1416#define tcgetattr(x,y) not_here("tcgetattr")
1417#define tcsetattr(x,y,z) not_here("tcsetattr")
1418#endif
1419
1420/* Possibly needed prototypes */
6e22d046 1421#ifndef WIN32
a2e65780 1422START_EXTERN_C
20ce7b12
GS
1423double strtod (const char *, char **);
1424long strtol (const char *, char **, int);
1425unsigned long strtoul (const char *, char **, int);
0ff7b9da
JH
1426#ifdef HAS_STRTOLD
1427long double strtold (const char *, char **);
1428#endif
a2e65780 1429END_EXTERN_C
6e22d046 1430#endif
a0d0e21e 1431
a0d0e21e
LW
1432#ifndef HAS_DIFFTIME
1433#ifndef difftime
1434#define difftime(a,b) not_here("difftime")
1435#endif
1436#endif
1437#ifndef HAS_FPATHCONF
3609ea0d 1438#define fpathconf(f,n) (SysRetLong) not_here("fpathconf")
a0d0e21e
LW
1439#endif
1440#ifndef HAS_MKTIME
1441#define mktime(a) not_here("mktime")
8990e307
LW
1442#endif
1443#ifndef HAS_NICE
1444#define nice(a) not_here("nice")
1445#endif
a0d0e21e 1446#ifndef HAS_PATHCONF
3609ea0d 1447#define pathconf(f,n) (SysRetLong) not_here("pathconf")
a0d0e21e
LW
1448#endif
1449#ifndef HAS_SYSCONF
3609ea0d 1450#define sysconf(n) (SysRetLong) not_here("sysconf")
a0d0e21e 1451#endif
8990e307
LW
1452#ifndef HAS_READLINK
1453#define readlink(a,b,c) not_here("readlink")
1454#endif
1455#ifndef HAS_SETPGID
1456#define setpgid(a,b) not_here("setpgid")
1457#endif
8990e307
LW
1458#ifndef HAS_SETSID
1459#define setsid() not_here("setsid")
1460#endif
a0d0e21e
LW
1461#ifndef HAS_STRCOLL
1462#define strcoll(s1,s2) not_here("strcoll")
1463#endif
a89d8a78
DH
1464#ifndef HAS_STRTOD
1465#define strtod(s1,s2) not_here("strtod")
1466#endif
0ff7b9da
JH
1467#ifndef HAS_STRTOLD
1468#define strtold(s1,s2) not_here("strtold")
1469#endif
a89d8a78
DH
1470#ifndef HAS_STRTOL
1471#define strtol(s1,s2,b) not_here("strtol")
1472#endif
1473#ifndef HAS_STRTOUL
1474#define strtoul(s1,s2,b) not_here("strtoul")
1475#endif
a0d0e21e
LW
1476#ifndef HAS_STRXFRM
1477#define strxfrm(s1,s2,n) not_here("strxfrm")
8990e307
LW
1478#endif
1479#ifndef HAS_TCGETPGRP
1480#define tcgetpgrp(a) not_here("tcgetpgrp")
1481#endif
1482#ifndef HAS_TCSETPGRP
1483#define tcsetpgrp(a,b) not_here("tcsetpgrp")
1484#endif
1485#ifndef HAS_TIMES
2986a63f 1486#ifndef NETWARE
8990e307 1487#define times(a) not_here("times")
2986a63f 1488#endif /* NETWARE */
8990e307
LW
1489#endif
1490#ifndef HAS_UNAME
1491#define uname(a) not_here("uname")
1492#endif
1493#ifndef HAS_WAITPID
1494#define waitpid(a,b,c) not_here("waitpid")
1495#endif
1496
a0d0e21e
LW
1497#ifndef HAS_MBLEN
1498#ifndef mblen
1499#define mblen(a,b) not_here("mblen")
1500#endif
1501#endif
1502#ifndef HAS_MBSTOWCS
1503#define mbstowcs(s, pwcs, n) not_here("mbstowcs")
1504#endif
1505#ifndef HAS_MBTOWC
1506#define mbtowc(pwc, s, n) not_here("mbtowc")
1507#endif
1508#ifndef HAS_WCSTOMBS
1509#define wcstombs(s, pwcs, n) not_here("wcstombs")
1510#endif
1511#ifndef HAS_WCTOMB
1512#define wctomb(s, wchar) not_here("wcstombs")
1513#endif
1514#if !defined(HAS_MBLEN) && !defined(HAS_MBSTOWCS) && !defined(HAS_MBTOWC) && !defined(HAS_WCSTOMBS) && !defined(HAS_WCTOMB)
1515/* If we don't have these functions, then we wouldn't have gotten a typedef
1516 for wchar_t, the wide character type. Defining wchar_t allows the
1517 functions referencing it to compile. Its actual type is then meaningless,
1518 since without the above functions, all sections using it end up calling
1519 not_here() and croak. --Kaveh Ghazi (ghazi@noc.rutgers.edu) 9/18/94. */
1520#ifndef wchar_t
1521#define wchar_t char
1522#endif
1523#endif
1524
3f3bcbfc
KW
1525#ifndef HAS_LOCALECONV
1526# define localeconv() not_here("localeconv")
1527#else
2f0945cb
NC
1528struct lconv_offset {
1529 const char *name;
1530 size_t offset;
1531};
1532
0b057af7 1533static const struct lconv_offset lconv_strings[] = {
03ceeedf 1534#ifdef USE_LOCALE_NUMERIC
3800c318
JH
1535 {"decimal_point", STRUCT_OFFSET(struct lconv, decimal_point)},
1536 {"thousands_sep", STRUCT_OFFSET(struct lconv, thousands_sep)},
03ceeedf 1537# ifndef NO_LOCALECONV_GROUPING
3800c318 1538 {"grouping", STRUCT_OFFSET(struct lconv, grouping)},
03ceeedf 1539# endif
2f0945cb 1540#endif
03ceeedf 1541#ifdef USE_LOCALE_MONETARY
3800c318
JH
1542 {"int_curr_symbol", STRUCT_OFFSET(struct lconv, int_curr_symbol)},
1543 {"currency_symbol", STRUCT_OFFSET(struct lconv, currency_symbol)},
1544 {"mon_decimal_point", STRUCT_OFFSET(struct lconv, mon_decimal_point)},
03ceeedf 1545# ifndef NO_LOCALECONV_MON_THOUSANDS_SEP
3800c318 1546 {"mon_thousands_sep", STRUCT_OFFSET(struct lconv, mon_thousands_sep)},
03ceeedf
KW
1547# endif
1548# ifndef NO_LOCALECONV_MON_GROUPING
3800c318 1549 {"mon_grouping", STRUCT_OFFSET(struct lconv, mon_grouping)},
03ceeedf 1550# endif
3800c318
JH
1551 {"positive_sign", STRUCT_OFFSET(struct lconv, positive_sign)},
1552 {"negative_sign", STRUCT_OFFSET(struct lconv, negative_sign)},
03ceeedf 1553#endif
2f0945cb
NC
1554 {NULL, 0}
1555};
1556
c1284011
KW
1557#ifdef USE_LOCALE_NUMERIC
1558
1559/* The Linux man pages say these are the field names for the structure
1560 * components that are LC_NUMERIC; the rest being LC_MONETARY */
f33b12f3
JH
1561# define isLC_NUMERIC_STRING(name) (strEQ(name, "decimal_point") \
1562 || strEQ(name, "thousands_sep") \
c1284011
KW
1563 \
1564 /* There should be no harm done \
1565 * checking for this, even if \
1566 * NO_LOCALECONV_GROUPING */ \
f33b12f3 1567 || strEQ(name, "grouping"))
c1284011
KW
1568#else
1569# define isLC_NUMERIC_STRING(name) (0)
1570#endif
1571
0b057af7 1572static const struct lconv_offset lconv_integers[] = {
03ceeedf 1573#ifdef USE_LOCALE_MONETARY
3800c318
JH
1574 {"int_frac_digits", STRUCT_OFFSET(struct lconv, int_frac_digits)},
1575 {"frac_digits", STRUCT_OFFSET(struct lconv, frac_digits)},
1576 {"p_cs_precedes", STRUCT_OFFSET(struct lconv, p_cs_precedes)},
1577 {"p_sep_by_space", STRUCT_OFFSET(struct lconv, p_sep_by_space)},
1578 {"n_cs_precedes", STRUCT_OFFSET(struct lconv, n_cs_precedes)},
1579 {"n_sep_by_space", STRUCT_OFFSET(struct lconv, n_sep_by_space)},
1580 {"p_sign_posn", STRUCT_OFFSET(struct lconv, p_sign_posn)},
1581 {"n_sign_posn", STRUCT_OFFSET(struct lconv, n_sign_posn)},
b15c1b56
AF
1582#ifdef HAS_LC_MONETARY_2008
1583 {"int_p_cs_precedes", STRUCT_OFFSET(struct lconv, int_p_cs_precedes)},
1584 {"int_p_sep_by_space", STRUCT_OFFSET(struct lconv, int_p_sep_by_space)},
1585 {"int_n_cs_precedes", STRUCT_OFFSET(struct lconv, int_n_cs_precedes)},
1586 {"int_n_sep_by_space", STRUCT_OFFSET(struct lconv, int_n_sep_by_space)},
1587 {"int_p_sign_posn", STRUCT_OFFSET(struct lconv, int_p_sign_posn)},
1588 {"int_n_sign_posn", STRUCT_OFFSET(struct lconv, int_n_sign_posn)},
1589#endif
03ceeedf 1590#endif
2f0945cb
NC
1591 {NULL, 0}
1592};
1593
3f3bcbfc 1594#endif /* HAS_LOCALECONV */
a0d0e21e 1595
172ea7c8 1596#ifdef HAS_LONG_DOUBLE
53796371 1597# if LONG_DOUBLESIZE > NVSIZE
172ea7c8
JH
1598# undef HAS_LONG_DOUBLE /* XXX until we figure out how to use them */
1599# endif
1600#endif
1601
1602#ifndef HAS_LONG_DOUBLE
1603#ifdef LDBL_MAX
1604#undef LDBL_MAX
1605#endif
1606#ifdef LDBL_MIN
1607#undef LDBL_MIN
1608#endif
1609#ifdef LDBL_EPSILON
1610#undef LDBL_EPSILON
1611#endif
1612#endif
1613
ec193bec
JH
1614/* Background: in most systems the low byte of the wait status
1615 * is the signal (the lowest 7 bits) and the coredump flag is
1616 * the eight bit, and the second lowest byte is the exit status.
1617 * BeOS bucks the trend and has the bytes in different order.
1618 * See beos/beos.c for how the reality is bent even in BeOS
1619 * to follow the traditional. However, to make the POSIX
1620 * wait W*() macros to work in BeOS, we need to unbend the
1621 * reality back in place. --jhi */
17028706
IW
1622/* In actual fact the code below is to blame here. Perl has an internal
1623 * representation of the exit status ($?), which it re-composes from the
1624 * OS's representation using the W*() POSIX macros. The code below
1625 * incorrectly uses the W*() macros on the internal representation,
1626 * which fails for OSs that have a different representation (namely BeOS
1627 * and Haiku). WMUNGE() is a hack that converts the internal
1628 * representation into the OS specific one, so that the W*() macros work
1629 * as expected. The better solution would be not to use the W*() macros
1630 * in the first place, though. -- Ingo Weinhold
1631 */
b6c36746 1632#if defined(__HAIKU__)
ec193bec
JH
1633# define WMUNGE(x) (((x) & 0xFF00) >> 8 | ((x) & 0x00FF) << 8)
1634#else
1635# define WMUNGE(x) (x)
1636#endif
1637
8990e307 1638static int
4b48cf39 1639not_here(const char *s)
8990e307
LW
1640{
1641 croak("POSIX::%s not implemented on this architecture", s);
1642 return -1;
1643}
463ee0b2 1644
1cb0fb50 1645#include "const-c.inc"
a290f238 1646
1dfe7606 1647static void
40b7a5f5 1648restore_sigmask(pTHX_ SV *osset_sv)
1dfe7606 1649{
7feb700b
JH
1650 /* Fortunately, restoring the signal mask can't fail, because
1651 * there's nothing we can do about it if it does -- we're not
1652 * supposed to return -1 from sigaction unless the disposition
1653 * was unaffected.
1654 */
30b42e09 1655#if !(defined(__amigaos4__) && defined(__NEWLIB__))
7feb700b
JH
1656 sigset_t *ossetp = (sigset_t *) SvPV_nolen( osset_sv );
1657 (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0);
30b42e09 1658#endif
1dfe7606 1659}
1660
a2261f90
NC
1661static void *
1662allocate_struct(pTHX_ SV *rv, const STRLEN size, const char *packname) {
1663 SV *const t = newSVrv(rv, packname);
1664 void *const p = sv_grow(t, size + 1);
1665
1666 SvCUR_set(t, size);
1667 SvPOK_on(t);
1668 return p;
1669}
1670
81ab4c44
SH
1671#ifdef WIN32
1672
1673/*
1674 * (1) The CRT maintains its own copy of the environment, separate from
1675 * the Win32API copy.
1676 *
1677 * (2) CRT getenv() retrieves from this copy. CRT putenv() updates this
1678 * copy, and then calls SetEnvironmentVariableA() to update the Win32API
1679 * copy.
1680 *
1681 * (3) win32_getenv() and win32_putenv() call GetEnvironmentVariableA() and
1682 * SetEnvironmentVariableA() directly, bypassing the CRT copy of the
1683 * environment.
1684 *
1685 * (4) The CRT strftime() "%Z" implementation calls __tzset(). That
1686 * calls CRT tzset(), but only the first time it is called, and in turn
1687 * that uses CRT getenv("TZ") to retrieve the timezone info from the CRT
1688 * local copy of the environment and hence gets the original setting as
1689 * perl never updates the CRT copy when assigning to $ENV{TZ}.
1690 *
1691 * Therefore, we need to retrieve the value of $ENV{TZ} and call CRT
1692 * putenv() to update the CRT copy of the environment (if it is different)
1693 * whenever we're about to call tzset().
1694 *
1695 * In addition to all that, when perl is built with PERL_IMPLICIT_SYS
1696 * defined:
1697 *
1698 * (a) Each interpreter has its own copy of the environment inside the
1699 * perlhost structure. That allows applications that host multiple
1700 * independent Perl interpreters to isolate environment changes from
1701 * each other. (This is similar to how the perlhost mechanism keeps a
1702 * separate working directory for each Perl interpreter, so that calling
1703 * chdir() will not affect other interpreters.)
1704 *
1705 * (b) Only the first Perl interpreter instantiated within a process will
1706 * "write through" environment changes to the process environment.
1707 *
1708 * (c) Even the primary Perl interpreter won't update the CRT copy of the
1709 * the environment, only the Win32API copy (it calls win32_putenv()).
1710 *
1711 * As with CPerlHost::Getenv() and CPerlHost::Putenv() themselves, it makes
1712 * sense to only update the process environment when inside the main
1713 * interpreter, but we don't have access to CPerlHost's m_bTopLevel member
1714 * from here so we'll just have to check PL_curinterp instead.
1715 *
1716 * Therefore, we can simply #undef getenv() and putenv() so that those names
1717 * always refer to the CRT functions, and explicitly call win32_getenv() to
1718 * access perl's %ENV.
1719 *
1720 * We also #undef malloc() and free() to be sure we are using the CRT
1721 * functions otherwise under PERL_IMPLICIT_SYS they are redefined to calls
1722 * into VMem::Malloc() and VMem::Free() and all allocations will be freed
1723 * when the Perl interpreter is being destroyed so we'd end up with a pointer
1724 * into deallocated memory in environ[] if a program embedding a Perl
1725 * interpreter continues to operate even after the main Perl interpreter has
1726 * been destroyed.
1727 *
1728 * Note that we don't free() the malloc()ed memory unless and until we call
1729 * malloc() again ourselves because the CRT putenv() function simply puts its
b7b1e41b 1730 * pointer argument into the environ[] array (it doesn't make a copy of it)
81ab4c44
SH
1731 * so this memory must otherwise be leaked.
1732 */
1733
1734#undef getenv
1735#undef putenv
1736#undef malloc
1737#undef free
1738
1739static void
1740fix_win32_tzenv(void)
1741{
1742 static char* oldenv = NULL;
1743 char* newenv;
1744 const char* perl_tz_env = win32_getenv("TZ");
1745 const char* crt_tz_env = getenv("TZ");
1746 if (perl_tz_env == NULL)
1747 perl_tz_env = "";
1748 if (crt_tz_env == NULL)
1749 crt_tz_env = "";
1750 if (strcmp(perl_tz_env, crt_tz_env) != 0) {
1751 newenv = (char*)malloc((strlen(perl_tz_env) + 4) * sizeof(char));
1752 if (newenv != NULL) {
1753 sprintf(newenv, "TZ=%s", perl_tz_env);
1754 putenv(newenv);
1755 if (oldenv != NULL)
1756 free(oldenv);
1757 oldenv = newenv;
1758 }
1759 }
1760}
1761
1762#endif
1763
1764/*
1765 * my_tzset - wrapper to tzset() with a fix to make it work (better) on Win32.
1766 * This code is duplicated in the Time-Piece module, so any changes made here
1767 * should be made there too.
1768 */
1769static void
1770my_tzset(pTHX)
1771{
1772#ifdef WIN32
1773#if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
1774 if (PL_curinterp == aTHX)
1775#endif
1776 fix_win32_tzenv();
1777#endif
1778 tzset();
1779}
1780
fb52dbc1
NC
1781typedef int (*isfunc_t)(int);
1782typedef void (*any_dptr_t)(void *);
1783
1784/* This needs to be ALIASed in a custom way, hence can't easily be defined as
1785 a regular XSUB. */
1786static XSPROTO(is_common); /* prototype to pass -Wmissing-prototypes */
1787static XSPROTO(is_common)
1788{
1789 dXSARGS;
2da736a2 1790
fb52dbc1
NC
1791 if (items != 1)
1792 croak_xs_usage(cv, "charstring");
1793
1794 {
1795 dXSTARG;
1796 STRLEN len;
31e107a4
KW
1797 /*int RETVAL = 0; YYY means uncomment this to return false on an
1798 * empty string input */
fb52dbc1
NC
1799 int RETVAL;
1800 unsigned char *s = (unsigned char *) SvPV(ST(0), len);
1801 unsigned char *e = s + len;
1802 isfunc_t isfunc = (isfunc_t) XSANY.any_dptr;
1803
2da736a2
KW
1804 if (ckWARN_d(WARN_DEPRECATED)) {
1805
1806 /* Warn exactly once for each lexical place this function is
1807 * called. See thread at
1808 * http://markmail.org/thread/jhqcag5njmx7jpyu */
1809
5c45bbe0
TC
1810 HV *warned = get_hv("POSIX::_warned", GV_ADD | GV_ADDMULTI);
1811 if (! hv_exists(warned, (const char *)&PL_op, sizeof(PL_op))) {
2da736a2
KW
1812 Perl_warner(aTHX_ packWARN(WARN_DEPRECATED),
1813 "Calling POSIX::%"HEKf"() is deprecated",
1814 HEKfARG(GvNAME_HEK(CvGV(cv))));
f0c80be3 1815 (void)hv_store(warned, (const char *)&PL_op, sizeof(PL_op), &PL_sv_yes, 0);
2da736a2
KW
1816 }
1817 }
1818
31e107a4 1819 /*if (e > s) { YYY */
fb52dbc1
NC
1820 for (RETVAL = 1; RETVAL && s < e; s++)
1821 if (!isfunc(*s))
1822 RETVAL = 0;
31e107a4 1823 /*} YYY */
fb52dbc1
NC
1824 XSprePUSH;
1825 PUSHi((IV)RETVAL);
1826 }
1827 XSRETURN(1);
1828}
1829
1830MODULE = POSIX PACKAGE = POSIX
1831
1832BOOT:
1833{
1834 CV *cv;
fb52dbc1 1835
df164f52
DM
1836
1837 /* silence compiler warning about not_here() defined but not used */
1838 if (0) not_here("");
1839
fb52dbc1
NC
1840 /* Ensure we get the function, not a macro implementation. Like the C89
1841 standard says we can... */
1842#undef isalnum
42c07143 1843 cv = newXS_deffile("POSIX::isalnum", is_common);
fb52dbc1
NC
1844 XSANY.any_dptr = (any_dptr_t) &isalnum;
1845#undef isalpha
42c07143 1846 cv = newXS_deffile("POSIX::isalpha", is_common);
fb52dbc1
NC
1847 XSANY.any_dptr = (any_dptr_t) &isalpha;
1848#undef iscntrl
42c07143 1849 cv = newXS_deffile("POSIX::iscntrl", is_common);
fb52dbc1
NC
1850 XSANY.any_dptr = (any_dptr_t) &iscntrl;
1851#undef isdigit
42c07143 1852 cv = newXS_deffile("POSIX::isdigit", is_common);
fb52dbc1
NC
1853 XSANY.any_dptr = (any_dptr_t) &isdigit;
1854#undef isgraph
42c07143 1855 cv = newXS_deffile("POSIX::isgraph", is_common);
fb52dbc1
NC
1856 XSANY.any_dptr = (any_dptr_t) &isgraph;
1857#undef islower
42c07143 1858 cv = newXS_deffile("POSIX::islower", is_common);
fb52dbc1
NC
1859 XSANY.any_dptr = (any_dptr_t) &islower;
1860#undef isprint
42c07143 1861 cv = newXS_deffile("POSIX::isprint", is_common);
fb52dbc1
NC
1862 XSANY.any_dptr = (any_dptr_t) &isprint;
1863#undef ispunct
42c07143 1864 cv = newXS_deffile("POSIX::ispunct", is_common);
fb52dbc1
NC
1865 XSANY.any_dptr = (any_dptr_t) &ispunct;
1866#undef isspace
42c07143 1867 cv = newXS_deffile("POSIX::isspace", is_common);
fb52dbc1
NC
1868 XSANY.any_dptr = (any_dptr_t) &isspace;
1869#undef isupper
42c07143 1870 cv = newXS_deffile("POSIX::isupper", is_common);
fb52dbc1
NC
1871 XSANY.any_dptr = (any_dptr_t) &isupper;
1872#undef isxdigit
42c07143 1873 cv = newXS_deffile("POSIX::isxdigit", is_common);
fb52dbc1
NC
1874 XSANY.any_dptr = (any_dptr_t) &isxdigit;
1875}
1876
2304df62
AD
1877MODULE = SigSet PACKAGE = POSIX::SigSet PREFIX = sig
1878
92b39396 1879void
2304df62 1880new(packname = "POSIX::SigSet", ...)
d3f5e399 1881 const char * packname
2304df62
AD
1882 CODE:
1883 {
1884 int i;
92b39396
NC
1885 sigset_t *const s
1886 = (sigset_t *) allocate_struct(aTHX_ (ST(0) = sv_newmortal()),
1887 sizeof(sigset_t),
1888 packname);
1889 sigemptyset(s);
a0d0e21e 1890 for (i = 1; i < items; i++)
92b39396
NC
1891 sigaddset(s, SvIV(ST(i)));
1892 XSRETURN(1);
2304df62 1893 }
2304df62
AD
1894
1895SysRet
df6c2df2 1896addset(sigset, sig)
2304df62 1897 POSIX::SigSet sigset
69b5fd06 1898 POSIX::SigNo sig
df6c2df2
NC
1899 ALIAS:
1900 delset = 1
1901 CODE:
1902 RETVAL = ix ? sigdelset(sigset, sig) : sigaddset(sigset, sig);
1903 OUTPUT:
1904 RETVAL
2304df62
AD
1905
1906SysRet
df6c2df2 1907emptyset(sigset)
2304df62 1908 POSIX::SigSet sigset
df6c2df2
NC
1909 ALIAS:
1910 fillset = 1
1911 CODE:
1912 RETVAL = ix ? sigfillset(sigset) : sigemptyset(sigset);
1913 OUTPUT:
1914 RETVAL
2304df62
AD
1915
1916int
1917sigismember(sigset, sig)
1918 POSIX::SigSet sigset
69b5fd06 1919 POSIX::SigNo sig
2304df62 1920
a0d0e21e
LW
1921MODULE = Termios PACKAGE = POSIX::Termios PREFIX = cf
1922
11a39fe4 1923void
a0d0e21e 1924new(packname = "POSIX::Termios", ...)
d3f5e399 1925 const char * packname
a0d0e21e
LW
1926 CODE:
1927 {
1928#ifdef I_TERMIOS
a2261f90
NC
1929 void *const p = allocate_struct(aTHX_ (ST(0) = sv_newmortal()),
1930 sizeof(struct termios), packname);
11a39fe4
NC
1931 /* The previous implementation stored a pointer to an uninitialised
1932 struct termios. Seems safer to initialise it, particularly as
1933 this implementation exposes the struct to prying from perl-space.
1934 */
a2261f90 1935 memset(p, 0, 1 + sizeof(struct termios));
11a39fe4 1936 XSRETURN(1);
a0d0e21e
LW
1937#else
1938 not_here("termios");
1939#endif
1940 }
a0d0e21e
LW
1941
1942SysRet
1943getattr(termios_ref, fd = 0)
1944 POSIX::Termios termios_ref
ddc7c5c7 1945 POSIX::Fd fd
a0d0e21e
LW
1946 CODE:
1947 RETVAL = tcgetattr(fd, termios_ref);
1948 OUTPUT:
1949 RETVAL
1950
e08f19f5
TC
1951# If we define TCSANOW here then both a found and not found constant sub
1952# are created causing a Constant subroutine TCSANOW redefined warning
518487b2 1953#ifndef TCSANOW
e08f19f5
TC
1954# define DEF_SETATTR_ACTION 0
1955#else
1956# define DEF_SETATTR_ACTION TCSANOW
518487b2 1957#endif
a0d0e21e 1958SysRet
e08f19f5 1959setattr(termios_ref, fd = 0, optional_actions = DEF_SETATTR_ACTION)
a0d0e21e 1960 POSIX::Termios termios_ref
ddc7c5c7 1961 POSIX::Fd fd
a0d0e21e
LW
1962 int optional_actions
1963 CODE:
ddc7c5c7
JH
1964 /* The second argument to the call is mandatory, but we'd like to give
1965 it a useful default. 0 isn't valid on all operating systems - on
1966 Solaris (at least) TCSANOW, TCSADRAIN and TCSAFLUSH have the same
1967 values as the equivalent ioctls, TCSETS, TCSETSW and TCSETSF. */
1968 if (optional_actions < 0) {
1969 SETERRNO(EINVAL, LIB_INVARG);
8481e3d3 1970 RETVAL = -1;
ddc7c5c7
JH
1971 } else {
1972 RETVAL = tcsetattr(fd, optional_actions, termios_ref);
8481e3d3 1973 }
a0d0e21e
LW
1974 OUTPUT:
1975 RETVAL
1976
1977speed_t
2a59a32c 1978getispeed(termios_ref)
a0d0e21e 1979 POSIX::Termios termios_ref
2a59a32c
NC
1980 ALIAS:
1981 getospeed = 1
a0d0e21e 1982 CODE:
2a59a32c 1983 RETVAL = ix ? cfgetospeed(termios_ref) : cfgetispeed(termios_ref);
a0d0e21e
LW
1984 OUTPUT:
1985 RETVAL
1986
1987tcflag_t
2a59a32c 1988getiflag(termios_ref)
a0d0e21e 1989 POSIX::Termios termios_ref
2a59a32c
NC
1990 ALIAS:
1991 getoflag = 1
1992 getcflag = 2
1993 getlflag = 3
a0d0e21e
LW
1994 CODE:
1995#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
2a59a32c
NC
1996 switch(ix) {
1997 case 0:
1998 RETVAL = termios_ref->c_iflag;
1999 break;
2000 case 1:
2001 RETVAL = termios_ref->c_oflag;
2002 break;
2003 case 2:
2004 RETVAL = termios_ref->c_cflag;
2005 break;
2006 case 3:
2007 RETVAL = termios_ref->c_lflag;
2008 break;
df164f52
DM
2009 default:
2010 RETVAL = 0; /* silence compiler warning */
2a59a32c 2011 }
a0d0e21e 2012#else
2a59a32c
NC
2013 not_here(GvNAME(CvGV(cv)));
2014 RETVAL = 0;
a0d0e21e
LW
2015#endif
2016 OUTPUT:
2017 RETVAL
2018
2019cc_t
2020getcc(termios_ref, ccix)
2021 POSIX::Termios termios_ref
b56fc9ec 2022 unsigned int ccix
a0d0e21e
LW
2023 CODE:
2024#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
2025 if (ccix >= NCCS)
2026 croak("Bad getcc subscript");
2027 RETVAL = termios_ref->c_cc[ccix];
2028#else
640cc986
HM
2029 not_here("getcc");
2030 RETVAL = 0;
a0d0e21e
LW
2031#endif
2032 OUTPUT:
2033 RETVAL
2034
2035SysRet
2a59a32c 2036setispeed(termios_ref, speed)
a0d0e21e
LW
2037 POSIX::Termios termios_ref
2038 speed_t speed
2a59a32c
NC
2039 ALIAS:
2040 setospeed = 1
a0d0e21e 2041 CODE:
2a59a32c
NC
2042 RETVAL = ix
2043 ? cfsetospeed(termios_ref, speed) : cfsetispeed(termios_ref, speed);
2044 OUTPUT:
2045 RETVAL
a0d0e21e
LW
2046
2047void
2a59a32c 2048setiflag(termios_ref, flag)
a0d0e21e 2049 POSIX::Termios termios_ref
2a59a32c
NC
2050 tcflag_t flag
2051 ALIAS:
2052 setoflag = 1
2053 setcflag = 2
2054 setlflag = 3
a0d0e21e
LW
2055 CODE:
2056#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
2a59a32c
NC
2057 switch(ix) {
2058 case 0:
2059 termios_ref->c_iflag = flag;
2060 break;
2061 case 1:
2062 termios_ref->c_oflag = flag;
2063 break;
2064 case 2:
2065 termios_ref->c_cflag = flag;
2066 break;
2067 case 3:
2068 termios_ref->c_lflag = flag;
2069 break;
2070 }
a0d0e21e 2071#else
2a59a32c 2072 not_here(GvNAME(CvGV(cv)));
a0d0e21e
LW
2073#endif
2074
2075void
2076setcc(termios_ref, ccix, cc)
2077 POSIX::Termios termios_ref
b56fc9ec 2078 unsigned int ccix
a0d0e21e
LW
2079 cc_t cc
2080 CODE:
2081#ifdef I_TERMIOS /* References a termios structure member so ifdef it out. */
2082 if (ccix >= NCCS)
2083 croak("Bad setcc subscript");
2084 termios_ref->c_cc[ccix] = cc;
2085#else
2086 not_here("setcc");
2087#endif
2088
2089
a0d0e21e
LW
2090MODULE = POSIX PACKAGE = POSIX
2091
1cb0fb50 2092INCLUDE: const-xs.inc
a290f238 2093
e99d581a
NC
2094int
2095WEXITSTATUS(status)
2096 int status
72bfe1b2
NC
2097 ALIAS:
2098 POSIX::WIFEXITED = 1
2099 POSIX::WIFSIGNALED = 2
2100 POSIX::WIFSTOPPED = 3
2101 POSIX::WSTOPSIG = 4
2102 POSIX::WTERMSIG = 5
2103 CODE:
fabb67aa
SK
2104#if !defined(WEXITSTATUS) || !defined(WIFEXITED) || !defined(WIFSIGNALED) \
2105 || !defined(WIFSTOPPED) || !defined(WSTOPSIG) || !defined(WTERMSIG)
19c4478c
NC
2106 RETVAL = 0; /* Silence compilers that notice this, but don't realise
2107 that not_here() can't return. */
2108#endif
72bfe1b2
NC
2109 switch(ix) {
2110 case 0:
d49025b7 2111#ifdef WEXITSTATUS
17028706 2112 RETVAL = WEXITSTATUS(WMUNGE(status));
d49025b7
NC
2113#else
2114 not_here("WEXITSTATUS");
2115#endif
72bfe1b2
NC
2116 break;
2117 case 1:
d49025b7 2118#ifdef WIFEXITED
17028706 2119 RETVAL = WIFEXITED(WMUNGE(status));
d49025b7
NC
2120#else
2121 not_here("WIFEXITED");
2122#endif
72bfe1b2
NC
2123 break;
2124 case 2:
d49025b7 2125#ifdef WIFSIGNALED
17028706 2126 RETVAL = WIFSIGNALED(WMUNGE(status));
d49025b7
NC
2127#else
2128 not_here("WIFSIGNALED");
2129#endif
72bfe1b2
NC
2130 break;
2131 case 3:
d49025b7 2132#ifdef WIFSTOPPED
17028706 2133 RETVAL = WIFSTOPPED(WMUNGE(status));
d49025b7
NC
2134#else
2135 not_here("WIFSTOPPED");
2136#endif
72bfe1b2
NC
2137 break;
2138 case 4:
d49025b7 2139#ifdef WSTOPSIG
17028706 2140 RETVAL = WSTOPSIG(WMUNGE(status));
d49025b7
NC
2141#else
2142 not_here("WSTOPSIG");
2143#endif
72bfe1b2
NC
2144 break;
2145 case 5:
d49025b7 2146#ifdef WTERMSIG
17028706 2147 RETVAL = WTERMSIG(WMUNGE(status));
d49025b7
NC
2148#else
2149 not_here("WTERMSIG");
2150#endif
72bfe1b2
NC
2151 break;
2152 default:
42c07143 2153 croak("Illegal alias %d for POSIX::W*", (int)ix);
72bfe1b2
NC
2154 }
2155 OUTPUT:
2156 RETVAL
2304df62 2157
2304df62
AD
2158SysRet
2159open(filename, flags = O_RDONLY, mode = 0666)
2160 char * filename
2161 int flags
a0d0e21e 2162 Mode_t mode
748a9306
LW
2163 CODE:
2164 if (flags & (O_APPEND|O_CREAT|O_TRUNC|O_RDWR|O_WRONLY|O_EXCL))
2165 TAINT_PROPER("open");
2166 RETVAL = open(filename, flags, mode);
2167 OUTPUT:
2168 RETVAL
2169
2304df62
AD
2170
2171HV *
2172localeconv()
2173 CODE:
3f3bcbfc
KW
2174#ifndef HAS_LOCALECONV
2175 localeconv(); /* A stub to call not_here(). */
2176#else
2304df62 2177 struct lconv *lcbuf;
a835cd47
KW
2178
2179 /* localeconv() deals with both LC_NUMERIC and LC_MONETARY, but
2180 * LC_MONETARY is already in the correct locale */
67d796ae
KW
2181 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
2182 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
a835cd47 2183
2304df62 2184 RETVAL = newHV();
c4e79b56 2185 sv_2mortal((SV*)RETVAL);
8063af02 2186 if ((lcbuf = localeconv())) {
2f0945cb
NC
2187 const struct lconv_offset *strings = lconv_strings;
2188 const struct lconv_offset *integers = lconv_integers;
2189 const char *ptr = (const char *) lcbuf;
2190
e3bf3304 2191 while (strings->name) {
c1284011
KW
2192 /* This string may be controlled by either LC_NUMERIC, or
2193 * LC_MONETARY */
2194 bool is_utf8_locale
2195#if defined(USE_LOCALE_NUMERIC) && defined(USE_LOCALE_MONETARY)
2196 = _is_cur_LC_category_utf8((isLC_NUMERIC_STRING(strings->name))
2197 ? LC_NUMERIC
2198 : LC_MONETARY);
2199#elif defined(USE_LOCALE_NUMERIC)
2200 = _is_cur_LC_category_utf8(LC_NUMERIC);
2201#elif defined(USE_LOCALE_MONETARY)
2202 = _is_cur_LC_category_utf8(LC_MONETARY);
2203#else
2204 = FALSE;
2205#endif
2206
2f0945cb
NC
2207 const char *value = *((const char **)(ptr + strings->offset));
2208
c1284011
KW
2209 if (value && *value) {
2210 (void) hv_store(RETVAL,
2211 strings->name,
2212 strlen(strings->name),
2213 newSVpvn_utf8(value,
2214 strlen(value),
2215
2216 /* We mark it as UTF-8 if a utf8 locale
9f10db87 2217 * and is valid and variant under UTF-8 */
c1284011 2218 is_utf8_locale
9f10db87 2219 && ! is_invariant_string((U8 *) value, 0)
c1284011
KW
2220 && is_utf8_string((U8 *) value, 0)),
2221 0);
e3bf3304
KW
2222 }
2223 strings++;
2224 }
2f0945cb 2225
e3bf3304 2226 while (integers->name) {
2f0945cb
NC
2227 const char value = *((const char *)(ptr + integers->offset));
2228
2229 if (value != CHAR_MAX)
2230 (void) hv_store(RETVAL, integers->name,
2231 strlen(integers->name), newSViv(value), 0);
e3bf3304
KW
2232 integers++;
2233 }
2304df62 2234 }
67d796ae 2235 RESTORE_LC_NUMERIC_STANDARD();
3f3bcbfc 2236#endif /* HAS_LOCALECONV */
2304df62
AD
2237 OUTPUT:
2238 RETVAL
2239
2240char *
c28ee57b 2241setlocale(category, locale = 0)
2304df62 2242 int category
8e70cf7a 2243 const char * locale
1ba01ae3
SH
2244 PREINIT:
2245 char * retval;
c28ee57b 2246 CODE:
49efabc8
KW
2247#ifdef USE_LOCALE_NUMERIC
2248 /* A 0 (or NULL) locale means only query what the current one is. We
2249 * have the LC_NUMERIC name saved, because we are normally switched
2250 * into the C locale for it. Switch back so an LC_ALL query will yield
2251 * the correct results; all other categories don't require special
2252 * handling */
2253 if (locale == 0) {
2254 if (category == LC_NUMERIC) {
2255 XSRETURN_PV(PL_numeric_name);
2256 }
2257# ifdef LC_ALL
2258 else if (category == LC_ALL) {
67d796ae 2259 SET_NUMERIC_UNDERLYING();
49efabc8
KW
2260 }
2261# endif
2262 }
2263#endif
b385bb4d
KW
2264#ifdef WIN32 /* Use wrapper on Windows */
2265 retval = Perl_my_setlocale(aTHX_ category, locale);
2266#else
1ba01ae3 2267 retval = setlocale(category, locale);
b385bb4d 2268#endif
bbc98134
KW
2269 DEBUG_L(PerlIO_printf(Perl_debug_log,
2270 "%s:%d: %s\n", __FILE__, __LINE__,
2271 _setlocale_debug_string(category, locale, retval)));
fbd840df 2272 if (! retval) {
49efabc8
KW
2273 /* Should never happen that a query would return an error, but be
2274 * sure and reset to C locale */
2275 if (locale == 0) {
2276 SET_NUMERIC_STANDARD();
2277 }
fbd840df
KW
2278 XSRETURN_UNDEF;
2279 }
49efabc8
KW
2280
2281 /* Save retval since subsequent setlocale() calls may overwrite it. */
2282 retval = savepv(retval);
2283
67d796ae
KW
2284 /* For locale == 0, we may have switched to NUMERIC_UNDERLYING. Switch
2285 * back */
49efabc8
KW
2286 if (locale == 0) {
2287 SET_NUMERIC_STANDARD();
2288 XSRETURN_PV(retval);
2289 }
fbd840df 2290 else {
49efabc8 2291 RETVAL = retval;
36477c24 2292#ifdef USE_LOCALE_CTYPE
bbce6d69
PP
2293 if (category == LC_CTYPE
2294#ifdef LC_ALL
2295 || category == LC_ALL
2296#endif
2297 )
2298 {
2299 char *newctype;
2300#ifdef LC_ALL
bbc98134 2301 if (category == LC_ALL) {
bbce6d69 2302 newctype = setlocale(LC_CTYPE, NULL);
bbc98134
KW
2303 DEBUG_Lv(PerlIO_printf(Perl_debug_log,
2304 "%s:%d: %s\n", __FILE__, __LINE__,
2305 _setlocale_debug_string(LC_CTYPE, NULL, newctype)));
2306 }
bbce6d69
PP
2307 else
2308#endif
2309 newctype = RETVAL;
864dbfa3 2310 new_ctype(newctype);
bbce6d69 2311 }
36477c24
PP
2312#endif /* USE_LOCALE_CTYPE */
2313#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2314 if (category == LC_COLLATE
2315#ifdef LC_ALL
2316 || category == LC_ALL
2317#endif
2318 )
2319 {
2320 char *newcoll;
2321#ifdef LC_ALL
bbc98134 2322 if (category == LC_ALL) {
bbce6d69 2323 newcoll = setlocale(LC_COLLATE, NULL);
bbc98134
KW
2324 DEBUG_Lv(PerlIO_printf(Perl_debug_log,
2325 "%s:%d: %s\n", __FILE__, __LINE__,
2326 _setlocale_debug_string(LC_COLLATE, NULL, newcoll)));
2327 }
bbce6d69
PP
2328 else
2329#endif
2330 newcoll = RETVAL;
864dbfa3 2331 new_collate(newcoll);
bbce6d69 2332 }
36477c24
PP
2333#endif /* USE_LOCALE_COLLATE */
2334#ifdef USE_LOCALE_NUMERIC
bbce6d69
PP
2335 if (category == LC_NUMERIC
2336#ifdef LC_ALL
2337 || category == LC_ALL
2338#endif
2339 )
2340 {
2341 char *newnum;
2342#ifdef LC_ALL
bbc98134 2343 if (category == LC_ALL) {
bbce6d69 2344 newnum = setlocale(LC_NUMERIC, NULL);
bbc98134
KW
2345 DEBUG_Lv(PerlIO_printf(Perl_debug_log,
2346 "%s:%d: %s\n", __FILE__, __LINE__,
2347 _setlocale_debug_string(LC_NUMERIC, NULL, newnum)));
2348 }
bbce6d69
PP
2349 else
2350#endif
2351 newnum = RETVAL;
864dbfa3 2352 new_numeric(newnum);
bbce6d69 2353 }
36477c24 2354#endif /* USE_LOCALE_NUMERIC */
bbce6d69 2355 }
c28ee57b
JH
2356 OUTPUT:
2357 RETVAL
1ba01ae3 2358 CLEANUP:
fbd840df 2359 Safefree(RETVAL);
2304df62 2360
e1ca407b 2361NV
2304df62 2362acos(x)
e1ca407b 2363 NV x
b256643b 2364 ALIAS:
7965edec
JH
2365 acosh = 1
2366 asin = 2
2367 asinh = 3
2368 atan = 4
2369 atanh = 5
2370 cbrt = 6
2371 ceil = 7
2372 cosh = 8
2373 erf = 9
2374 erfc = 10
2375 exp2 = 11
2376 expm1 = 12
2377 floor = 13
2378 j0 = 14
2379 j1 = 15
2380 lgamma = 16
2381 log10 = 17
2382 log1p = 18
2383 log2 = 19
2384 logb = 20
2385 nearbyint = 21
2386 rint = 22
2387 round = 23
2388 sinh = 24
2389 tan = 25
2390 tanh = 26
2391 tgamma = 27
2392 trunc = 28
2393 y0 = 29
2394 y1 = 30
b256643b 2395 CODE:
7f4bfd0b 2396 PERL_UNUSED_VAR(x);
78a0541a 2397 RETVAL = NV_NAN;
b256643b
NC
2398 switch (ix) {
2399 case 0:
8a00eddc 2400 RETVAL = Perl_acos(x); /* C89 math */
b256643b
NC
2401 break;
2402 case 1:
5716d070 2403#ifdef c99_acosh
7965edec 2404 RETVAL = c99_acosh(x);
5716d070
JH
2405#else
2406 not_here("acosh");
2407#endif
b256643b
NC
2408 break;
2409 case 2:
8a00eddc 2410 RETVAL = Perl_asin(x); /* C89 math */
b256643b
NC
2411 break;
2412 case 3:
5716d070 2413#ifdef c99_asinh
7965edec 2414 RETVAL = c99_asinh(x);
5716d070
JH
2415#else
2416 not_here("asinh");
2417#endif
b256643b
NC
2418 break;
2419 case 4:
8a00eddc 2420 RETVAL = Perl_atan(x); /* C89 math */
b256643b
NC
2421 break;
2422 case 5:
5716d070 2423#ifdef c99_atanh
7965edec 2424 RETVAL = c99_atanh(x);
5716d070
JH
2425#else
2426 not_here("atanh");
2427#endif
b256643b
NC
2428 break;
2429 case 6:
5716d070 2430#ifdef c99_cbrt
7965edec 2431 RETVAL = c99_cbrt(x);
5716d070
JH
2432#else
2433 not_here("cbrt");
2434#endif
b256643b
NC
2435 break;
2436 case 7:
8a00eddc 2437 RETVAL = Perl_ceil(x); /* C89 math */
b256643b
NC
2438 break;
2439 case 8:
8a00eddc 2440 RETVAL = Perl_cosh(x); /* C89 math */
7965edec
JH
2441 break;
2442 case 9:
5716d070 2443#ifdef c99_erf
7965edec 2444 RETVAL = c99_erf(x);
5716d070
JH
2445#else
2446 not_here("erf");
2447#endif
7965edec
JH
2448 break;
2449 case 10:
5716d070 2450#ifdef c99_erfc
d5799f37 2451 RETVAL = c99_erfc(x);
5716d070
JH
2452#else
2453 not_here("erfc");
2454#endif
7965edec
JH
2455 break;
2456 case 11:
5716d070 2457#ifdef c99_exp2
7965edec 2458 RETVAL = c99_exp2(x);
5716d070
JH
2459#else
2460 not_here("exp2");
2461#endif
7965edec
JH
2462 break;
2463 case 12:
5716d070 2464#ifdef c99_expm1
7965edec 2465 RETVAL = c99_expm1(x);
5716d070
JH
2466#else
2467 not_here("expm1");
2468#endif
7965edec
JH
2469 break;
2470 case 13:
8a00eddc 2471 RETVAL = Perl_floor(x); /* C89 math */
7965edec
JH
2472 break;
2473 case 14:
5716d070 2474#ifdef bessel_j0
7965edec 2475 RETVAL = bessel_j0(x);
5716d070 2476#else
85c93440 2477 not_here("j0");
5716d070 2478#endif
7965edec
JH
2479 break;
2480 case 15:
5716d070 2481#ifdef bessel_j1
7965edec 2482 RETVAL = bessel_j1(x);
5716d070 2483#else
85c93440 2484 not_here("j1");
5716d070 2485#endif
7965edec
JH
2486 break;
2487 case 16:
2e9cdb62 2488 /* XXX Note: the lgamma modifies a global variable (signgam),
d334ccbe 2489 * which is evil. Some platforms have lgamma_r, which has
2e9cdb62 2490 * extra output parameter instead of the global variable. */
5716d070 2491#ifdef c99_lgamma
7965edec 2492 RETVAL = c99_lgamma(x);
5716d070
JH
2493#else
2494 not_here("lgamma");
2495#endif
7965edec
JH
2496 break;
2497 case 17:
5716d070 2498 RETVAL = log10(x); /* C89 math */
7965edec
JH
2499 break;
2500 case 18:
5716d070 2501#ifdef c99_log1p
7965edec 2502 RETVAL = c99_log1p(x);
5716d070
JH
2503#else
2504 not_here("log1p");
2505#endif
7965edec
JH
2506 break;
2507 case 19:
5716d070 2508#ifdef c99_log2
7965edec 2509 RETVAL = c99_log2(x);
5716d070
JH
2510#else
2511 not_here("log2");
2512#endif
7965edec
JH
2513 break;
2514 case 20:
5716d070 2515#ifdef c99_logb
7965edec 2516 RETVAL = c99_logb(x);
eec978e5
JH
2517#elif defined(c99_log2) && FLT_RADIX == 2
2518 RETVAL = Perl_floor(c99_log2(PERL_ABS(x)));
5716d070
JH
2519#else
2520 not_here("logb");
2521#endif
7965edec
JH
2522 break;
2523 case 21:
5716d070 2524#ifdef c99_nearbyint
7965edec 2525 RETVAL = c99_nearbyint(x);
5716d070
JH
2526#else
2527 not_here("nearbyint");
2528#endif
7965edec
JH
2529 break;
2530 case 22:
5716d070 2531#ifdef c99_rint
7965edec 2532 RETVAL = c99_rint(x);
5716d070
JH
2533#else
2534 not_here("rint");
2535#endif
7965edec
JH
2536 break;
2537 case 23:
5716d070 2538#ifdef c99_round
7965edec 2539 RETVAL = c99_round(x);
5716d070
JH
2540#else
2541 not_here("round");
2542#endif
7965edec
JH
2543 break;
2544 case 24:
8a00eddc 2545 RETVAL = Perl_sinh(x); /* C89 math */
7965edec
JH
2546 break;
2547 case 25:
8a00eddc 2548 RETVAL = Perl_tan(x); /* C89 math */
b256643b 2549 break;
7965edec 2550 case 26:
8a00eddc 2551 RETVAL = Perl_tanh(x); /* C89 math */
7965edec
JH
2552 break;
2553 case 27:
5716d070 2554#ifdef c99_tgamma
7965edec 2555 RETVAL = c99_tgamma(x);
5716d070
JH
2556#else
2557 not_here("tgamma");
2558#endif
7965edec
JH
2559 break;
2560 case 28:
5716d070 2561#ifdef c99_trunc
7965edec 2562 RETVAL = c99_trunc(x);
5716d070
JH
2563#else
2564 not_here("trunc");
2565#endif
7965edec
JH
2566 break;
2567 case 29:
5716d070 2568#ifdef bessel_y0
7965edec 2569 RETVAL = bessel_y0(x);
5716d070 2570#else
85c93440 2571 not_here("y0");
5716d070 2572#endif
7965edec
JH
2573 break;
2574 case 30:
2575 default:
5716d070 2576#ifdef bessel_y1
7965edec 2577 RETVAL = bessel_y1(x);
5716d070 2578#else
85c93440 2579 not_here("y1");
5716d070 2580#endif
7965edec
JH
2581 }
2582 OUTPUT:
2583 RETVAL
2584
2585IV
a5713e21
JH
2586fegetround()
2587 CODE:
78a0541a 2588#ifdef HAS_FEGETROUND
d5f4f26a 2589 RETVAL = my_fegetround();
78a0541a
JH
2590#else
2591 RETVAL = -1;
a5713e21
JH
2592 not_here("fegetround");
2593#endif
2594 OUTPUT:
2595 RETVAL
2596
2597IV
2598fesetround(x)
2599 IV x
2600 CODE:
2601#ifdef HAS_FEGETROUND /* canary for fesetround */
2602 RETVAL = fesetround(x);
879d23d2 2603#elif defined(HAS_FPGETROUND) /* canary for fpsetround */
e0939537 2604 switch (x) {
e0939537
JH
2605 case FE_TONEAREST: RETVAL = fpsetround(FP_RN); break;
2606 case FE_TOWARDZERO: RETVAL = fpsetround(FP_RZ); break;
2607 case FE_DOWNWARD: RETVAL = fpsetround(FP_RM); break;
2608 case FE_UPWARD: RETVAL = fpsetround(FP_RP); break;
ebac59ac 2609 default: RETVAL = -1; break;
e0939537 2610 }
877206df
JH
2611#elif defined(__osf__) /* Tru64 */
2612 switch (x) {
2613 case FE_TONEAREST: RETVAL = write_rnd(FP_RND_RN); break;
2614 case FE_TOWARDZERO: RETVAL = write_rnd(FP_RND_RZ); break;
2615 case FE_DOWNWARD: RETVAL = write_rnd(FP_RND_RM); break;
2616 case FE_UPWARD: RETVAL = write_rnd(FP_RND_RP); break;
2617 default: RETVAL = -1; break;
2618 }
a5713e21 2619#else
7f4bfd0b 2620 PERL_UNUSED_VAR(x);
78a0541a 2621 RETVAL = -1;
a5713e21
JH
2622 not_here("fesetround");
2623#endif
2624 OUTPUT:
2625 RETVAL
2626
2627IV
7965edec
JH
2628fpclassify(x)
2629 NV x
2630 ALIAS:
2631 ilogb = 1
2632 isfinite = 2
2633 isinf = 3
2634 isnan = 4
2635 isnormal = 5
3823048b
JH
2636 lrint = 6
2637 lround = 7
2638 signbit = 8
7965edec 2639 CODE:
7f4bfd0b 2640 PERL_UNUSED_VAR(x);
78a0541a 2641 RETVAL = -1;
7965edec
JH
2642 switch (ix) {
2643 case 0:
5716d070 2644#ifdef c99_fpclassify
7965edec 2645 RETVAL = c99_fpclassify(x);
5716d070
JH
2646#else
2647 not_here("fpclassify");
2648#endif
7965edec
JH
2649 break;
2650 case 1:
5716d070 2651#ifdef c99_ilogb
7965edec 2652 RETVAL = c99_ilogb(x);
5716d070
JH
2653#else
2654 not_here("ilogb");
2655#endif
7965edec
JH
2656 break;
2657 case 2:
2658 RETVAL = Perl_isfinite(x);
2659 break;
2660 case 3:
2661 RETVAL = Perl_isinf(x);
2662 break;
2663 case 4:
2664 RETVAL = Perl_isnan(x);
2665 break;
2666 case 5:
5716d070 2667#ifdef c99_isnormal
7965edec 2668 RETVAL = c99_isnormal(x);
5716d070
JH
2669#else
2670 not_here("isnormal");
2671#endif
7965edec
JH
2672 break;
2673 case 6:
d5f4f26a
JH
2674#ifdef c99_lrint
2675 RETVAL = c99_lrint(x);
2676#else
2677 not_here("lrint");
2678#endif
2679 break;
3823048b 2680 case 7:
9e010b89
JH
2681#ifdef c99_lround
2682 RETVAL = c99_lround(x);
2683#else
2684 not_here("lround");
2685#endif
2686 break;
3823048b 2687 case 8:
7965edec 2688 default:
5716d070
JH
2689#ifdef Perl_signbit
2690 RETVAL = Perl_signbit(x);
2a7bb164
JH
2691#else
2692 RETVAL = (x < 0) || (x == -0.0);
5716d070 2693#endif
7965edec 2694 break;
b256643b
NC
2695 }
2696 OUTPUT:
2697 RETVAL
2304df62 2698
e1ca407b 2699NV
07bb61ac
JH
2700getpayload(nv)
2701 NV nv
2702 CODE:
2703 RETVAL = S_getpayload(nv);
2704 OUTPUT:
2705 RETVAL
2706
2707void
2708setpayload(nv, payload)
2709 NV nv
2710 NV payload
2711 CODE:
2712 S_setpayload(&nv, payload, FALSE);
2713 OUTPUT:
2714 nv
2715
2716void
2717setpayloadsig(nv, payload)
2718 NV nv
2719 NV payload
2720 CODE:
2721 nv = NV_NAN;
2722 S_setpayload(&nv, payload, TRUE);
2723 OUTPUT:
2724 nv
2725
2726int
2727issignaling(nv)
2728 NV nv
2729 CODE:
2730 RETVAL = Perl_isnan(nv) && NV_NAN_IS_SIGNALING(&nv);
2731 OUTPUT:
2732 RETVAL
2733
2734NV
7965edec 2735copysign(x,y)
e1ca407b
A
2736 NV x
2737 NV y
7965edec
JH
2738 ALIAS:
2739 fdim = 1
2740 fmax = 2
2741 fmin = 3
2742 fmod = 4
2743 hypot = 5
2744 isgreater = 6
2745 isgreaterequal = 7
2746 isless = 8
2747 islessequal = 9
2748 islessgreater = 10
2749 isunordered = 11
2750 nextafter = 12
2751 nexttoward = 13
2752 remainder = 14
2753 CODE:
7f4bfd0b
JH
2754 PERL_UNUSED_VAR(x);
2755 PERL_UNUSED_VAR(y);
78a0541a 2756 RETVAL = NV_NAN;
7965edec
JH
2757 switch (ix) {
2758 case 0:
5716d070 2759#ifdef c99_copysign
7965edec 2760 RETVAL = c99_copysign(x, y);
5716d070
JH
2761#else
2762 not_here("copysign");
2763#endif
7965edec
JH
2764 break;
2765 case 1:
5716d070 2766#ifdef c99_fdim
7965edec 2767 RETVAL = c99_fdim(x, y);
5716d070
JH
2768#else
2769 not_here("fdim");
2770#endif
7965edec
JH
2771 break;
2772 case 2:
5716d070 2773#ifdef c99_fmax
7965edec 2774 RETVAL = c99_fmax(x, y);
5716d070
JH
2775#else
2776 not_here("fmax");
2777#endif
7965edec
JH
2778 break;
2779 case 3:
5716d070 2780#ifdef c99_fmin
7965edec 2781 RETVAL = c99_fmin(x, y);
5716d070
JH
2782#else
2783 not_here("fmin");
2784#endif
7965edec
JH
2785 break;
2786 case 4:
8a00eddc 2787 RETVAL = Perl_fmod(x, y); /* C89 math */
7965edec
JH
2788 break;
2789 case 5:
5716d070 2790#ifdef c99_hypot
7965edec 2791 RETVAL = c99_hypot(x, y);
5716d070
JH
2792#else
2793 not_here("hypot");
2794#endif
7965edec
JH
2795 break;
2796 case 6:
5716d070 2797#ifdef c99_isgreater
7965edec 2798 RETVAL = c99_isgreater(x, y);
5716d070
JH
2799#else
2800 not_here("isgreater");
2801#endif
7965edec
JH
2802 break;
2803 case 7:
5716d070 2804#ifdef c99_isgreaterequal
7965edec 2805 RETVAL = c99_isgreaterequal(x, y);
5716d070
JH
2806#else
2807 not_here("isgreaterequal");
2808#endif
7965edec
JH
2809 break;
2810 case 8:
5716d070 2811#ifdef c99_isless
7965edec 2812 RETVAL = c99_isless(x, y);
5716d070
JH
2813#else
2814 not_here("isless");
2815#endif
7965edec
JH
2816 break;
2817 case 9:
5716d070 2818#ifdef c99_islessequal
7965edec 2819 RETVAL = c99_islessequal(x, y);
5716d070
JH
2820#else
2821 not_here("islessequal");
2822#endif
7965edec
JH
2823 break;
2824 case 10:
5716d070 2825#ifdef c99_islessgreater
7965edec 2826 RETVAL = c99_islessgreater(x, y);
5716d070
JH
2827#else
2828 not_here("islessgreater");
2829#endif
7965edec
JH
2830 break;
2831 case 11:
5716d070 2832#ifdef c99_isunordered
7965edec 2833 RETVAL = c99_isunordered(x, y);
5716d070
JH
2834#else
2835 not_here("isunordered");
2836#endif
7965edec
JH
2837 break;
2838 case 12:
5716d070 2839#ifdef c99_nextafter
7965edec 2840 RETVAL = c99_nextafter(x, y);
5716d070
JH
2841#else
2842 not_here("nextafter");
2843#endif
7965edec
JH
2844 break;
2845 case 13:
5716d070 2846#ifdef c99_nexttoward
7965edec 2847 RETVAL = c99_nexttoward(x, y);
5716d070
JH
2848#else
2849 not_here("nexttoward");
2850#endif
7965edec
JH
2851 break;
2852 case 14:
2853 default:
5716d070 2854#ifdef c99_remainder
7f4bfd0b 2855 RETVAL = c99_remainder(x, y);
5716d070 2856#else
7f4bfd0b 2857 not_here("remainder");
5716d070 2858#endif
7965edec
JH
2859 break;
2860 }
2861 OUTPUT:
2862 RETVAL
2304df62
AD
2863
2864void
2865frexp(x)
e1ca407b 2866 NV x
2304df62
AD
2867 PPCODE:
2868 int expvar;
2304df62 2869 /* (We already know stack is long enough.) */
5716d070 2870 PUSHs(sv_2mortal(newSVnv(Perl_frexp(x,&expvar)))); /* C89 math */
2304df62
AD
2871 PUSHs(sv_2mortal(newSViv(expvar)));
2872
e1ca407b 2873NV
2304df62 2874ldexp(x,exp)
e1ca407b 2875 NV x
2304df62
AD
2876 int exp
2877
2304df62
AD
2878void
2879modf(x)
e1ca407b 2880 NV x
2304df62 2881 PPCODE:
e1ca407b 2882 NV intvar;
2304df62 2883 /* (We already know stack is long enough.) */
5716d070 2884 PUSHs(sv_2mortal(newSVnv(Perl_modf(x,&intvar)))); /* C89 math */
2304df62
AD
2885 PUSHs(sv_2mortal(newSVnv(intvar)));
2886
7965edec
JH
2887void
2888remquo(x,y)
2889 NV x
2890 NV y
2891 PPCODE:
5716d070 2892#ifdef c99_remquo
7965edec
JH
2893 int intvar;
2894 PUSHs(sv_2mortal(newSVnv(c99_remquo(x,y,&intvar))));
2895 PUSHs(sv_2mortal(newSVnv(intvar)));
5716d070 2896#else
7f4bfd0b
JH
2897 PERL_UNUSED_VAR(x);
2898 PERL_UNUSED_VAR(y);
5716d070
JH
2899 not_here("remquo");
2900#endif
7965edec
JH
2901
2902NV
2903scalbn(x,y)
2904 NV x
2905 IV y
2906 CODE:
5716d070 2907#ifdef c99_scalbn
7965edec 2908 RETVAL = c99_scalbn(x, y);
5716d070 2909#else
7f4bfd0b
JH
2910 PERL_UNUSED_VAR(x);
2911 PERL_UNUSED_VAR(y);
78a0541a 2912 RETVAL = NV_NAN;
5716d070
JH
2913 not_here("scalbn");
2914#endif
7965edec
JH
2915 OUTPUT:
2916 RETVAL
2917
2918NV
2919fma(x,y,z)
2920 NV x
2921 NV y
2922 NV z
2923 CODE:
5716d070 2924#ifdef c99_fma
6b13befe
JH
2925 RETVAL = c99_fma(x, y, z);
2926#else
7f4bfd0b
JH
2927 PERL_UNUSED_VAR(x);
2928 PERL_UNUSED_VAR(y);
2929 PERL_UNUSED_VAR(z);
6b13befe 2930 not_here("fma");
5716d070 2931#endif
7965edec
JH
2932 OUTPUT:
2933 RETVAL
2934
2935NV
07bb61ac
JH
2936nan(payload = 0)
2937 NV payload
7965edec 2938 CODE:
07bb61ac
JH
2939#ifdef NV_NAN
2940 /* If no payload given, just return the default NaN.
2941 * This makes a difference in platforms where the default
2942 * NaN is not all zeros. */
2943 if (items == 0) {
2944 RETVAL = NV_NAN;
2945 } else {
2946 S_setpayload(&RETVAL, payload, FALSE);
2947 }
2948#elif defined(c99_nan)
2949 {
2950 STRLEN elen = my_snprintf(PL_efloatbuf, PL_efloatsize, "%g", nv);
2951 if ((IV)elen == -1) {
2952 RETVAL = NV_NAN;
2953 } else {
2954 RETVAL = c99_nan(PL_efloatbuf);
2955 }
2956 }
7c7d45f1 2957#else
5716d070
JH
2958 not_here("nan");
2959#endif
7965edec
JH
2960 OUTPUT:
2961 RETVAL
2962
2963NV
2964jn(x,y)
2965 IV x
2966 NV y
2967 ALIAS:
2968 yn = 1
2969 CODE:
78a0541a 2970 RETVAL = NV_NAN;
7965edec
JH
2971 switch (ix) {
2972 case 0:
5716d070 2973#ifdef bessel_jn
7f4bfd0b 2974 RETVAL = bessel_jn(x, y);
5716d070 2975#else
6b13befe
JH
2976 PERL_UNUSED_VAR(x);
2977 PERL_UNUSED_VAR(y);
7f4bfd0b 2978 not_here("jn");
5716d070 2979#endif
7965edec
JH
2980 break;
2981 case 1:
2982 default:
5716d070 2983#ifdef bessel_yn
7f4bfd0b 2984 RETVAL = bessel_yn(x, y);
5716d070 2985#else
6b13befe
JH
2986 PERL_UNUSED_VAR(x);
2987 PERL_UNUSED_VAR(y);
7f4bfd0b 2988 not_here("yn");
5716d070 2989#endif
7965edec
JH
2990 break;
2991 }
2992 OUTPUT:
2993 RETVAL
2994
2304df62 2995SysRet
1dfe7606 2996sigaction(sig, optaction, oldaction = 0)
2304df62 2997 int sig
1dfe7606 2998 SV * optaction
2304df62
AD
2999 POSIX::SigAction oldaction
3000 CODE:
30b42e09 3001#if defined(WIN32) || defined(NETWARE) || (defined(__amigaos4__) && defined(__NEWLIB__))
6dead956
GS
3002 RETVAL = not_here("sigaction");
3003#else
3a8a1642 3004# This code is really grody because we are trying to make the signal
2304df62
AD
3005# interface look beautiful, which is hard.
3006
2304df62 3007 {
27da23d5 3008 dVAR;
1dfe7606 3009 POSIX__SigAction action;
f584eb2d 3010 GV *siggv = gv_fetchpvs("SIG", GV_ADD, SVt_PVHV);
2304df62
AD
3011 struct sigaction act;
3012 struct sigaction oact;
1dfe7606 3013 sigset_t sset;
183bde56 3014 SV *osset_sv;
27c1a449 3015 sigset_t osset;
2304df62
AD
3016 POSIX__SigSet sigset;
3017 SV** svp;
1d81eac9 3018 SV** sigsvp;
3609ea0d 3019
516d25e8
SP
3020 if (sig < 0) {
3021 croak("Negative signals are not allowed");
3022 }
3023
1d81eac9 3024 if (sig == 0 && SvPOK(ST(0))) {
aa07b2f6 3025 const char *s = SvPVX_const(ST(0));
1d81eac9
JH
3026 int i = whichsig(s);
3027
3028 if (i < 0 && memEQ(s, "SIG", 3))
3029 i = whichsig(s + 3);
3030 if (i < 0) {
3031 if (ckWARN(WARN_SIGNAL))
3032 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
3033 "No such signal: SIG%s", s);
3034 XSRETURN_UNDEF;
3035 }
3036 else
3037 sig = i;
3038 }
3609ea0d
JH
3039#ifdef NSIG
3040 if (sig > NSIG) { /* NSIG - 1 is still okay. */
3041 Perl_warner(aTHX_ packWARN(WARN_SIGNAL),
3042 "No such signal: %d", sig);
3043 XSRETURN_UNDEF;
3044 }
3045#endif
1d81eac9
JH
3046 sigsvp = hv_fetch(GvHVn(siggv),
3047 PL_sig_name[sig],
3048 strlen(PL_sig_name[sig]),
3049 TRUE);
2304df62 3050
1dfe7606 3051 /* Check optaction and set action */
3052 if(SvTRUE(optaction)) {
3053 if(sv_isa(optaction, "POSIX::SigAction"))
3054 action = (HV*)SvRV(optaction);
3055 else
3056 croak("action is not of type POSIX::SigAction");
3057 }
3058 else {
3059 action=0;
3060 }
3061
3062 /* sigaction() is supposed to look atomic. In particular, any
3063 * signal handler invoked during a sigaction() call should
3064 * see either the old or the new disposition, and not something
3065 * in between. We use sigprocmask() to make it so.
3066 */
3067 sigfillset(&sset);
3068 RETVAL=sigprocmask(SIG_BLOCK, &sset, &osset);
3069 if(RETVAL == -1)
15c0d34a 3070 XSRETURN_UNDEF;
1dfe7606 3071 ENTER;
3072 /* Restore signal mask no matter how we exit this block. */
f584eb2d 3073 osset_sv = newSVpvn((char *)(&osset), sizeof(sigset_t));
183bde56 3074 SAVEFREESV( osset_sv );
40b7a5f5 3075 SAVEDESTRUCTOR_X(restore_sigmask, osset_sv);
1dfe7606 3076
3077 RETVAL=-1; /* In case both oldaction and action are 0. */
3078
3079 /* Remember old disposition if desired. */
2304df62 3080 if (oldaction) {
017a3ce5 3081 svp = hv_fetchs(oldaction, "HANDLER", TRUE);
1dfe7606 3082 if(!svp)
3083 croak("Can't supply an oldaction without a HANDLER");
3084 if(SvTRUE(*sigsvp)) { /* TBD: what if "0"? */
3085 sv_setsv(*svp, *sigsvp);
3086 }
3087 else {
f584eb2d 3088 sv_setpvs(*svp, "DEFAULT");
1dfe7606 3089 }
3090 RETVAL = sigaction(sig, (struct sigaction *)0, & oact);
6ca4bbc9
GG
3091 if(RETVAL == -1) {
3092 LEAVE;
15c0d34a 3093 XSRETURN_UNDEF;
6ca4bbc9 3094 }
1dfe7606 3095 /* Get back the mask. */
017a3ce5 3096 svp = hv_fetchs(oldaction, "MASK", TRUE);
1dfe7606 3097 if (sv_isa(*svp, "POSIX::SigSet")) {
92b39396 3098 sigset = (sigset_t *) SvPV_nolen(SvRV(*svp));
1dfe7606 3099 }
3100 else {
92b39396
NC
3101 sigset = (sigset_t *) allocate_struct(aTHX_ *svp,
3102 sizeof(sigset_t),
3103 "POSIX::SigSet");
1dfe7606 3104 }
3105 *sigset = oact.sa_mask;
3106
3107 /* Get back the flags. */
017a3ce5 3108 svp = hv_fetchs(oldaction, "FLAGS", TRUE);
1dfe7606 3109 sv_setiv(*svp, oact.sa_flags);
d36b6582
CS
3110
3111 /* Get back whether the old handler used safe signals. */
017a3ce5 3112 svp = hv_fetchs(oldaction, "SAFE", TRUE);
e91e3b10
RB
3113 sv_setiv(*svp,
3114 /* compare incompatible pointers by casting to integer */
3115 PTR2nat(oact.sa_handler) == PTR2nat(PL_csighandlerp));
2304df62
AD
3116 }
3117
3118 if (action) {
d36b6582
CS
3119 /* Safe signals use "csighandler", which vectors through the
3120 PL_sighandlerp pointer when it's safe to do so.
3121 (BTW, "csighandler" is very different from "sighandler".) */
017a3ce5 3122 svp = hv_fetchs(action, "SAFE", FALSE);
e91e3b10
RB
3123 act.sa_handler =
3124 DPTR2FPTR(
87d46f97 3125 void (*)(int),
e91e3b10
RB
3126 (*svp && SvTRUE(*svp))
3127 ? PL_csighandlerp : PL_sighandlerp
3128 );
d36b6582
CS
3129
3130 /* Vector new Perl handler through %SIG.
3131 (The core signal handlers read %SIG to dispatch.) */
017a3ce5 3132 svp = hv_fetchs(action, "HANDLER", FALSE);
2304df62
AD
3133 if (!svp)
3134 croak("Can't supply an action without a HANDLER");
1dfe7606 3135 sv_setsv(*sigsvp, *svp);
d36b6582
CS
3136
3137 /* This call actually calls sigaction() with almost the
3138 right settings, including appropriate interpretation
3139 of DEFAULT and IGNORE. However, why are we doing
3140 this when we're about to do it again just below? XXX */
17cffb37 3141 SvSETMAGIC(*sigsvp);
d36b6582
CS
3142
3143 /* And here again we duplicate -- DEFAULT/IGNORE checking. */
1dfe7606 3144 if(SvPOK(*svp)) {
aa07b2f6 3145 const char *s=SvPVX_const(*svp);
1dfe7606 3146 if(strEQ(s,"IGNORE")) {
3147 act.sa_handler = SIG_IGN;
3148 }
3149 else if(strEQ(s,"DEFAULT")) {
3150 act.sa_handler = SIG_DFL;
3151 }
1dfe7606 3152 }
2304df62
AD
3153
3154 /* Set up any desired mask. */
017a3ce5 3155 svp = hv_fetchs(action, "MASK", FALSE);
2304df62 3156 if (svp && sv_isa(*svp, "POSIX::SigSet")) {
92b39396 3157 sigset = (sigset_t *) SvPV_nolen(SvRV(*svp));
2304df62
AD
3158 act.sa_mask = *sigset;
3159 }
3160 else
85e6fe83 3161 sigemptyset(& act.sa_mask);
2304df62
AD
3162
3163 /* Set up any desired flags. */
017a3ce5 3164 svp = hv_fetchs(action, "FLAGS", FALSE);
2304df62 3165 act.sa_flags = svp ? SvIV(*svp) : 0;
2304df62 3166
1dfe7606 3167 /* Don't worry about cleaning up *sigsvp if this fails,
3168 * because that means we tried to disposition a
3169 * nonblockable signal, in which case *sigsvp is
3170 * essentially meaningless anyway.
3171 */
6c418a22 3172 RETVAL = sigaction(sig, & act, (struct sigaction *)0);
6ca4bbc9
GG
3173 if(RETVAL == -1) {
3174 LEAVE;
a7aad5de 3175 XSRETURN_UNDEF;
6ca4bbc9 3176 }
2304df62 3177 }
1dfe7606 3178
3179 LEAVE;
2304df62 3180 }
6dead956 3181#endif
2304df62
AD
3182 OUTPUT:
3183 RETVAL
3184
3185SysRet
3186sigpending(sigset)
3187 POSIX::SigSet sigset
7a004119
NC
3188 ALIAS:
3189 sigsuspend = 1
3190 CODE:
ea34f6bd 3191#ifdef __amigaos4__
30b42e09
AB
3192 RETVAL = not_here("sigpending");
3193#else
7a004119 3194 RETVAL = ix ? sigsuspend(sigset) : sigpending(sigset);
32a14dd4 3195#endif
7a004119
NC
3196 OUTPUT:
3197 RETVAL
20120e59
LT
3198 CLEANUP:
3199 PERL_ASYNC_CHECK();
2304df62
AD
3200
3201SysRet
3202sigprocmask(how, sigset, oldsigset = 0)
3203 int how
b13bbac7 3204 POSIX::SigSet sigset = NO_INIT
33c27489
GS
3205 POSIX::SigSet oldsigset = NO_INIT
3206INIT:
a3b811a7 3207 if (! SvOK(ST(1))) {
b13bbac7 3208 sigset = NULL;
a3b811a7 3209 } else if (sv_isa(ST(1), "POSIX::SigSet")) {
92b39396 3210 sigset = (sigset_t *) SvPV_nolen(SvRV(ST(1)));
b13bbac7
AB
3211 } else {
3212 croak("sigset is not of type POSIX::SigSet");
33c27489 3213 }
b13bbac7 3214
194cfca0 3215 if (items < 3 || ! SvOK(ST(2))) {
b13bbac7 3216 oldsigset = NULL;
a3b811a7 3217 } else if (sv_isa(ST(2), "POSIX::SigSet")) {
92b39396 3218 oldsigset = (sigset_t *) SvPV_nolen(SvRV(ST(2)));
b13bbac7
AB
3219 } else {
3220 croak("oldsigset is not of type POSIX::SigSet");
33c27489 3221 }
2304df62 3222
2304df62
AD
3223void
3224_exit(status)
3225 int status
8990e307 3226
85e6fe83 3227SysRet
8990e307
LW
3228dup2(fd1, fd2)
3229 int fd1
3230 int fd2
ad413e46 3231 CODE:
6e7b1a26 3232 if (fd1 >= 0 && fd2 >= 0) {
ad413e46 3233#ifdef WIN32
6e7b1a26
JH
3234 /* RT #98912 - More Microsoft muppetry - failing to
3235 actually implemented the well known documented POSIX
3236 behaviour for a POSIX API.
3237 http://msdn.microsoft.com/en-us/library/8syseb29.aspx */
3238 RETVAL = dup2(fd1, fd2) == -1 ? -1 : fd2;
ad413e46 3239#else
6e7b1a26 3240 RETVAL = dup2(fd1, fd2);
ad413e46 3241#endif
6e7b1a26
JH
3242 } else {
3243 SETERRNO(EBADF,RMS_IFI);
3244 RETVAL = -1;
3245 }
ad413e46
NC
3246 OUTPUT:
3247 RETVAL
8990e307 3248
4a9d6100 3249SV *
a0d0e21e 3250lseek(fd, offset, whence)
ddc7c5c7 3251 POSIX::Fd fd
85e6fe83
LW
3252 Off_t offset
3253 int whence
4a9d6100 3254 CODE:
ddc7c5c7
JH
3255 {
3256 Off_t pos = PerlLIO_lseek(fd, offset, whence);
3257 RETVAL = sizeof(Off_t) > sizeof(IV)
3258 ? newSVnv((NV)pos) : newSViv((IV)pos);
511343a2 3259 }
4a9d6100
GS
3260 OUTPUT:
3261 RETVAL
8990e307 3262
c5661c80 3263void
8990e307
LW
3264nice(incr)
3265 int incr
15f0f28a
AE
3266 PPCODE:
3267 errno = 0;
3268 if ((incr = nice(incr)) != -1 || errno == 0) {
3269 if (incr == 0)
d3d34884 3270 XPUSHs(newSVpvs_flags("0 but true", SVs_TEMP));
15f0f28a
AE
3271 else
3272 XPUSHs(sv_2mortal(newSViv(incr)));
3273 }
8990e307 3274
8063af02 3275void
8990e307 3276pipe()
85e6fe83
LW
3277 PPCODE:
3278 int fds[2];
85e6fe83 3279 if (pipe(fds) != -1) {
924508f0 3280 EXTEND(SP,2);
85e6fe83
LW
3281 PUSHs(sv_2mortal(newSViv(fds[0])));
3282 PUSHs(sv_2mortal(newSViv(fds[1])));
3283 }
8990e307 3284
85e6fe83 3285SysRet
a0d0e21e 3286read(fd, buffer, nbytes)
7747499c
TB
3287 PREINIT:
3288 SV *sv_buffer = SvROK(ST(1)) ? SvRV(ST(1)) : ST(1);
3289 INPUT:
ddc7c5c7 3290 POSIX::Fd fd
7747499c
TB
3291 size_t nbytes
3292 char * buffer = sv_grow( sv_buffer, nbytes+1 );
a0d0e21e 3293 CLEANUP:
7747499c 3294 if (RETVAL >= 0) {
b162af07 3295 SvCUR_set(sv_buffer, RETVAL);
7747499c
TB
3296 SvPOK_only(sv_buffer);
3297 *SvEND(sv_buffer) = '\0';
bbce6d69 3298 SvTAINTED_on(sv_buffer);
7747499c 3299 }
8990e307 3300
85e6fe83 3301SysRet
8990e307 3302setpgid(pid, pgid)
86200d5c
JH
3303 pid_t pid
3304 pid_t pgid
8990e307 3305
86200d5c 3306pid_t
8990e307
LW
3307setsid()
3308
86200d5c 3309pid_t
8990e307 3310tcgetpgrp(fd)
ddc7c5c7 3311 POSIX::Fd fd
8990e307 3312
85e6fe83 3313SysRet
8990e307 3314tcsetpgrp(fd, pgrp_id)
ddc7c5c7 3315 POSIX::Fd fd
86200d5c 3316 pid_t pgrp_id
8990e307 3317
8063af02 3318void
8990e307 3319uname()
2304df62 3320 PPCODE:
a0d0e21e 3321#ifdef HAS_UNAME
85e6fe83 3322 struct utsname buf;
85e6fe83 3323 if (uname(&buf) >= 0) {
924508f0 3324 EXTEND(SP, 5);
d3d34884
NC
3325 PUSHs(newSVpvn_flags(buf.sysname, strlen(buf.sysname), SVs_TEMP));
3326 PUSHs(newSVpvn_flags(buf.nodename, strlen(buf.nodename), SVs_TEMP));
3327 PUSHs(newSVpvn_flags(buf.release, strlen(buf.release), SVs_TEMP));
3328 PUSHs(newSVpvn_flags(buf.version, strlen(buf.version), SVs_TEMP));
3329 PUSHs(newSVpvn_flags(buf.machine, strlen(buf.machine), SVs_TEMP));
8990e307 3330 }
a0d0e21e
LW
3331#else
3332 uname((char *) 0); /* A stub to call not_here(). */
3333#endif
8990e307 3334
85e6fe83 3335SysRet
a0d0e21e 3336write(fd, buffer, nbytes)
ddc7c5c7 3337 POSIX::Fd fd
a0d0e21e
LW
3338 char * buffer
3339 size_t nbytes
3340
33f01dd1
SH
3341SV *
3342tmpnam()
3343 PREINIT:
3344 STRLEN i;
3345 int len;
3346 CODE:
c2b90b61 3347 RETVAL = newSVpvs("");
33f01dd1 3348 SvGROW(RETVAL, L_tmpnam);
0fadf2db
JH
3349 /* Yes, we know tmpnam() is bad. So bad that some compilers
3350 * and linkers warn against using it. But it is here for
3351 * completeness. POSIX.pod warns against using it.
3352 *
3353 * Then again, maybe this should be removed at some point.
3354 * No point in enabling dangerous interfaces. */
cae71c5d
TC
3355 if (ckWARN_d(WARN_DEPRECATED)) {
3356 HV *warned = get_hv("POSIX::_warned", GV_ADD | GV_ADDMULTI);
3357 if (! hv_exists(warned, (const char *)&PL_op, sizeof(PL_op))) {
3358 Perl_warner(aTHX_ packWARN(WARN_DEPRECATED), "Calling POSIX::tmpnam() is deprecated");
f0c80be3 3359 (void)hv_store(warned, (const char *)&PL_op, sizeof(PL_op), &PL_sv_yes, 0);
cae71c5d
TC
3360 }
3361 }
33f01dd1
SH
3362 len = strlen(tmpnam(SvPV(RETVAL, i)));
3363 SvCUR_set(RETVAL, len);
3364 OUTPUT:
3365 RETVAL
a0d0e21e
LW
3366
3367void
3368abort()
3369
3370int
3371mblen(s, n)
3372 char * s
3373 size_t n
3374
3375size_t
3376mbstowcs(s, pwcs, n)
3377 wchar_t * s
3378 char * pwcs
3379 size_t n
3380
3381int
3382mbtowc(pwc, s, n)
3383 wchar_t * pwc
3384 char * s
3385 size_t n
3386
3387int
3388wcstombs(s, pwcs, n)
3389 char * s
3390 wchar_t * pwcs
3391 size_t n
3392
3393int
3394wctomb(s, wchar)
3395 char * s
3396 wchar_t wchar
3397
3398int
3399strcoll(s1, s2)
3400 char * s1
3401 char * s2
3402
a89d8a78
DH
3403void
3404strtod(str)
3405 char * str
3406 PREINIT:
3407 double num;
3408 char *unparsed;
3409 PPCODE:
67d796ae
KW
3410 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
3411 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
a89d8a78
DH
3412 num = strtod(str, &unparsed);
3413 PUSHs(sv_2mortal(newSVnv(num)));
de915ff5 3414 if (GIMME_V == G_ARRAY) {
924508f0 3415 EXTEND(SP, 1);
a89d8a78
DH
3416 if (unparsed)
3417 PUSHs(sv_2mortal(newSViv(strlen(unparsed))));
3418 else
6b88bc9c 3419 PUSHs(&PL_sv_undef);
a89d8a78 3420 }
67d796ae 3421 RESTORE_LC_NUMERIC_STANDARD();
a89d8a78 3422
0ff7b9da
JH
3423#ifdef HAS_STRTOLD
3424
3425void
3426strtold(str)
3427 char * str
3428 PREINIT:
3429 long double num;
3430 char *unparsed;
3431 PPCODE:
67d796ae
KW
3432 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
3433 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
0ff7b9da
JH
3434 num = strtold(str, &unparsed);
3435 PUSHs(sv_2mortal(newSVnv(num)));
de915ff5 3436 if (GIMME_V == G_ARRAY) {
0ff7b9da
JH
3437 EXTEND(SP, 1);
3438 if (unparsed)
3439 PUSHs(sv_2mortal(newSViv(strlen(unparsed))));
3440 else
3441 PUSHs(&PL_sv_undef);
3442 }
67d796ae 3443 RESTORE_LC_NUMERIC_STANDARD();
0ff7b9da
JH
3444
3445#endif
3446
a89d8a78
DH
3447void
3448strtol(str, base = 0)
3449 char * str
3450 int base
3451 PREINIT:
3452 long num;
3453 char *unparsed;
3454 PPCODE:
e80fee22
JH
3455 if (base == 0 || (base >= 2 && base <= 36)) {
3456 num = strtol(str, &unparsed, base);
188f97e0 3457#if IVSIZE < LONGSIZE
e80fee22
JH
3458 if (num < IV_MIN || num > IV_MAX)
3459 PUSHs(sv_2mortal(newSVnv((double)num)));
3460 else
3461#endif
3462 PUSHs(sv_2mortal(newSViv((IV)num)));
3463 if (GIMME_V == G_ARRAY) {
3464 EXTEND(SP, 1);
3465 if (unparsed)
3466 PUSHs(sv_2mortal(newSViv(strlen(unparsed))));
3467 else
3468 PUSHs(&PL_sv_undef);
3469 }
3470 } else {
3471 SETERRNO(EINVAL, LIB_INVARG);
3472 PUSHs(&PL_sv_undef);
3473 if (GIMME_V == G_ARRAY) {
3474 EXTEND(SP, 1);
3475 PUSHs(&PL_sv_undef);
3476 }
3477 }
a89d8a78
DH
3478
3479void
3480strtoul(str, base = 0)
4b48cf39 3481 const char * str
a89d8a78
DH
3482 int base
3483 PREINIT:
3484 unsigned long num;
3485 char *unparsed;
3486 PPCODE:
0f17be83
JH
3487 PERL_UNUSED_VAR(str);
3488 PERL_UNUSED_VAR(base);
e80fee22
JH
3489 if (base == 0 || (base >= 2 && base <= 36)) {
3490 num = strtoul(str, &unparsed, base);
84c133a0 3491#if IVSIZE <= LONGSIZE
e80fee22
JH
3492 if (num > IV_MAX)
3493 PUSHs(sv_2mortal(newSVnv((double)num)));
3494 else
3495#endif
3496 PUSHs(sv_2mortal(newSViv((IV)num)));
3497 if (GIMME_V == G_ARRAY) {
3498 EXTEND(SP, 1);
3499 if (unparsed)
3500 PUSHs(sv_2mortal(newSViv(strlen(unparsed))));
3501 else
3502 PUSHs(&PL_sv_undef);
3503 }
3504 } else {
3505 SETERRNO(EINVAL, LIB_INVARG);
3506 PUSHs(&PL_sv_undef);
3507 if (GIMME_V == G_ARRAY) {
3508 EXTEND(SP, 1);
3509 PUSHs(&PL_sv_undef);
3510 }
3511 }
a89d8a78 3512
8063af02 3513void
a0d0e21e
LW
3514strxfrm(src)
3515 SV * src
85e6fe83 3516 CODE:
a0d0e21e
LW
3517 {
3518 STRLEN srclen;
3519 STRLEN dstlen;
6ec5f825 3520 STRLEN buflen;
a0d0e21e
LW
3521 char *p = SvPV(src,srclen);
3522 srclen++;
6ec5f825
TC
3523 buflen = srclen * 4 + 1;
3524 ST(0) = sv_2mortal(newSV(buflen));
3525 dstlen = strxfrm(SvPVX(ST(0)), p, (size_t)buflen);
3526 if (dstlen >= buflen) {
a0d0e21e
LW
3527 dstlen++;
3528 SvGROW(ST(0), dstlen);
3529 strxfrm(SvPVX(ST(0)), p, (size_t)dstlen);
3530 dstlen--;
3531 }
b162af07 3532 SvCUR_set(ST(0), dstlen);
a0d0e21e
LW
3533 SvPOK_only(ST(0));
3534 }
3535
3536SysRet
3537mkfifo(filename, mode)
3538 char * filename
3539 Mode_t mode
b5890904
NC
3540 ALIAS:
3541 access = 1
748a9306 3542 CODE:
b5890904
NC
3543 if(ix) {
3544 RETVAL = access(filename, mode);
3545 } else {
3546 TAINT_PROPER("mkfifo");
3547 RETVAL = mkfifo(filename, mode);
3548 }
748a9306
LW
3549 OUTPUT:
3550 RETVAL
a0d0e21e
LW
3551
3552SysRet
3553tcdrain(fd)
ddc7c5c7 3554 POSIX::Fd fd
9163475a
NC
3555 ALIAS:
3556 close = 1
3557 dup = 2
3558 CODE:
05732f97
JH
3559 if (fd >= 0) {
3560 RETVAL = ix == 1 ? close(fd)
3561 : (ix < 1 ? tcdrain(fd) : dup(fd));
3562 } else {
3563 SETERRNO(EBADF,RMS_IFI);
3564 RETVAL = -1;
3565 }
9163475a
NC
3566 OUTPUT:
3567 RETVAL
a0d0e21e
LW
3568
3569
3570SysRet
3571tcflow(fd, action)
ddc7c5c7 3572 POSIX::Fd fd
a0d0e21e 3573 int action
7a004119
NC
3574 ALIAS:
3575 tcflush = 1
3576 tcsendbreak = 2
3577 CODE:
ddc7c5c7 3578 if (action >= 0) {
af823f60
JH
3579 RETVAL = ix == 1 ? tcflush(fd, action)
3580 : (ix < 1 ? tcflow(fd, action) : tcsendbreak(fd, action));
3581 } else {
ddc7c5c7 3582 SETERRNO(EINVAL,LIB_INVARG);
af823f60
JH
3583 RETVAL = -1;
3584 }
7a004119
NC
3585 OUTPUT:
3586 RETVAL
a0d0e21e 3587
250d97fd 3588void
c1646883 3589asctime(sec, min, hour, mday, mon, year, wday = 0, yday = 0, isdst = -1)
a0d0e21e
LW
3590 int sec
3591 int min
3592 int hour
3593 int mday
3594 int mon
3595 int year
3596 int wday
3597 int yday
3598 int isdst
250d97fd
NC
3599 ALIAS:
3600 mktime = 1
3601 PPCODE:
a0d0e21e 3602 {
250d97fd 3603 dXSTARG;
a0d0e21e 3604 struct tm mytm;
a748fe11 3605 init_tm(&mytm); /* XXX workaround - see init_tm() in core util.c */
a0d0e21e
LW
3606 mytm.tm_sec = sec;
3607 mytm.tm_min = min;
3608 mytm.tm_hour = hour;
3609 mytm.tm_mday = mday;
3610 mytm.tm_mon = mon;
3611 mytm.tm_year = year;
3612 mytm.tm_wday = wday;
3613 mytm.tm_yday = yday;
3614 mytm.tm_isdst = isdst;
250d97fd 3615 if (ix) {
e2054bce
TC
3616 const time_t result = mktime(&mytm);
3617 if (result == (time_t)-1)
250d97fd
NC
3618 SvOK_off(TARG);
3619 else if (result == 0)
3620 sv_setpvn(TARG, "0 but true", 10);
3621 else
3622 sv_setiv(TARG, (IV)result);
3623 } else {
3624 sv_setpv(TARG, asctime(&mytm));
3625 }
3626 ST(0) = TARG;
3627 XSRETURN(1);
a0d0e21e 3628 }
a0d0e21e
LW
3629
3630long
3631clock()
3632
3633char *
3634ctime(time)
748a9306 3635 Time_t &time
8990e307 3636
37120919
AD
3637void
3638times()
3639 PPCODE:
3640 struct tms tms;
3641 clock_t realtime;
3642 realtime = times( &tms );
924508f0 3643 EXTEND(SP,5);
9607fc9c
PP
3644 PUSHs( sv_2mortal( newSViv( (IV) realtime ) ) );
3645 PUSHs( sv_2mortal( newSViv( (IV) tms.tms_utime ) ) );
3646 PUSHs( sv_2mortal( newSViv( (IV) tms.tms_stime ) ) );
3647 PUSHs( sv_2mortal( newSViv( (IV) tms.tms_cutime ) ) );
3648 PUSHs( sv_2mortal( newSViv( (IV) tms.tms_cstime ) ) );
37120919 3649
a0d0e21e
LW
3650double
3651difftime(time1, time2)
3652 Time_t time1
3653 Time_t time2
3654
8063af02
DM
3655#XXX: if $xsubpp::WantOptimize is always the default
3656# sv_setpv(TARG, ...) could be used rather than
3657# ST(0) = sv_2mortal(newSVpv(...))
3658void
e44f695e 3659strftime(fmt, sec, min, hour, mday, mon, year, wday = -1, yday = -1, isdst = -1)
dc57de01