sigsystem.t depends on fork().
[perl.git] / feature.h
1 /* -*- buffer-read-only: t -*-
2    !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
3    This file is built by regen/feature.pl.
4    Any changes made here will be lost!
5  */
6
7
8 #if defined(PERL_CORE) || defined (PERL_EXT)
9
10 #define HINT_FEATURE_SHIFT      26
11
12 #define FEATURE_BUNDLE_DEFAULT  0
13 #define FEATURE_BUNDLE_510      1
14 #define FEATURE_BUNDLE_511      2
15 #define FEATURE_BUNDLE_515      3
16 #define FEATURE_BUNDLE_CUSTOM   (HINT_FEATURE_MASK >> HINT_FEATURE_SHIFT)
17
18 #define CURRENT_HINTS \
19     (PL_curcop == &PL_compiling ? PL_hints : PL_curcop->cop_hints)
20 #define CURRENT_FEATURE_BUNDLE  (CURRENT_HINTS >> HINT_FEATURE_SHIFT)
21
22 #define FEATURE_IS_ENABLED(name)                                        \
23         ((CURRENT_HINTS                                                  \
24            & HINT_LOCALIZE_HH)                                            \
25             && Perl_feature_is_enabled(aTHX_ STR_WITH_LEN(name)))
26 /* The longest string we pass in.  */
27 #define MAX_FEATURE_LEN (sizeof("evalbytes")-1)
28
29 #define FEATURE_SAY_IS_ENABLED \
30     ( \
31         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
32          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
33      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
34          FEATURE_IS_ENABLED("say")) \
35     )
36
37 #define FEATURE_STATE_IS_ENABLED \
38     ( \
39         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
40          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
41      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
42          FEATURE_IS_ENABLED("state")) \
43     )
44
45 #define FEATURE_SWITCH_IS_ENABLED \
46     ( \
47         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_510 && \
48          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
49      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
50          FEATURE_IS_ENABLED("switch")) \
51     )
52
53 #define FEATURE_EVALBYTES_IS_ENABLED \
54     ( \
55         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
56      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
57          FEATURE_IS_ENABLED("evalbytes")) \
58     )
59
60 #define FEATURE_ARYBASE_IS_ENABLED \
61     ( \
62         CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_511 \
63      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
64          FEATURE_IS_ENABLED("arybase")) \
65     )
66
67 #define FEATURE___SUB___IS_ENABLED \
68     ( \
69         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
70      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
71          FEATURE_IS_ENABLED("__SUB__")) \
72     )
73
74 #define FEATURE_UNIEVAL_IS_ENABLED \
75     ( \
76         CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_515 \
77      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
78          FEATURE_IS_ENABLED("unieval")) \
79     )
80
81 #define FEATURE_UNICODE_IS_ENABLED \
82     ( \
83         (CURRENT_FEATURE_BUNDLE >= FEATURE_BUNDLE_511 && \
84          CURRENT_FEATURE_BUNDLE <= FEATURE_BUNDLE_515) \
85      || (CURRENT_FEATURE_BUNDLE == FEATURE_BUNDLE_CUSTOM && \
86          FEATURE_IS_ENABLED("unicode")) \
87     )
88
89
90 #endif /* PERL_CORE or PERL_EXT */
91
92 #ifdef PERL_IN_OP_C
93 PERL_STATIC_INLINE void
94 S_enable_feature_bundle(pTHX_ SV *ver)
95 {
96     SV *comp_ver = sv_newmortal();
97     PL_hints = (PL_hints &~ HINT_FEATURE_MASK)
98              | (
99                   (sv_setnv(comp_ver, 5.015),
100                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
101                         ? FEATURE_BUNDLE_515 :
102                   (sv_setnv(comp_ver, 5.011),
103                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
104                         ? FEATURE_BUNDLE_511 :
105                   (sv_setnv(comp_ver, 5.009005),
106                    vcmp(ver, upg_version(comp_ver, FALSE)) >= 0)
107                         ? FEATURE_BUNDLE_510 :
108                           FEATURE_BUNDLE_DEFAULT
109                ) << HINT_FEATURE_SHIFT;
110     /* special case */
111     assert(PL_curcop == &PL_compiling);
112     if (FEATURE_UNICODE_IS_ENABLED) PL_hints |=  HINT_UNI_8_BIT;
113     else                            PL_hints &= ~HINT_UNI_8_BIT;
114 }
115 #endif /* PERL_IN_OP_C */
116
117 /* ex: set ro: */