X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/f065df047b3b91cdea02a1ecce8f0c0e9045d9de..cf3f0ffbff208944549640df283e3008d1b83d77:/handy.h diff --git a/handy.h b/handy.h index e020c3f..9e8f50a 100644 --- a/handy.h +++ b/handy.h @@ -48,6 +48,15 @@ Null SV pointer. (No longer available when C is defined.) #define TRUE (1) #define FALSE (0) +/* The MUTABLE_*() macros cast pointers to the types shown, in such a way + * (compiler permitting) that casting away const-ness will give a warning; + * e.g.: + * + * const SV *sv = ...; + * AV *av1 = (AV*)sv; <== BAD: the const has been silently cast away + * AV *av2 = MUTABLE_AV(sv); <== GOOD: it may warn + */ + #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) # define MUTABLE_PTR(p) ({ void *_p = (p); _p; }) #else @@ -55,6 +64,10 @@ Null SV pointer. (No longer available when C is defined.) #endif #define MUTABLE_AV(p) ((AV *)MUTABLE_PTR(p)) +#define MUTABLE_CV(p) ((CV *)MUTABLE_PTR(p)) +#define MUTABLE_GV(p) ((GV *)MUTABLE_PTR(p)) +#define MUTABLE_HV(p) ((HV *)MUTABLE_PTR(p)) +#define MUTABLE_IO(p) ((IO *)MUTABLE_PTR(p)) #define MUTABLE_SV(p) ((SV *)MUTABLE_PTR(p)) /* XXX Configure ought to have a test for a boolean type, if I can @@ -184,18 +197,15 @@ typedef U64TYPE U64; # endif #endif -/* HMB H.Merijn Brand - a placeholder for preparing Configure patches */ -#if defined(HAS_PSEUDOFORK) && defined(USE_DTRACE) -#if defined(LOCALTIME_R_NEEDS_TZSET) && defined(HAS_TIMEGM) -#if defined(GMTIME_MAX) && defined(GMTIME_MIN) && defined(LOCALTIME_MAX) && defined(LOCALTIME_MIN) -#if defined(HAS_CTIME64) && defined(HAS_LOCALTIME64) && defined(HAS_GMTIME64) -#if defined(HAS_MKTIME64) && defined(HAS_DIFFTIME64) && defined(HAS_ASCTIME64) -/* Not (yet) used at top level, but mention them for metaconfig */ -#endif -#endif -#endif -#endif -#endif +/* HMB H.Merijn Brand - a placeholder for preparing Configure patches: + * + * USE_DTRACE HAS_PSEUDOFORK HAS_TIMEGM LOCALTIME_R_NEEDS_TZSET + * GMTIME_MAX GMTIME_MIN LOCALTIME_MAX LOCALTIME_MIN + * HAS_CTIME64 HAS_LOCALTIME64 HAS_GMTIME64 HAS_DIFFTIME64 + * HAS_MKTIME64 HAS_ASCTIME64 HAS_GETADDRINFO HAS_GETNAMEINFO + * HAS_INETNTOP HAS_INETPTON + * Not (yet) used at top level, but mention them for metaconfig + */ /* Mention I8SIZE, U8SIZE, I16SIZE, U16SIZE, I32SIZE, U32SIZE, I64SIZE, and U64SIZE here so that metaconfig pulls them in. */ @@ -297,7 +307,7 @@ and omits the hash parameter. */ /* concatenating with "" ensures that only literal strings are accepted as argument */ -#define STR_WITH_LEN(s) (s ""), (sizeof(s)-1) +#define STR_WITH_LEN(s) ("" s ""), (sizeof(s)-1) /* note that STR_WITH_LEN() can't be used as argument to macros or functions that * under some configurations might be macros, which means that it requires the full @@ -323,6 +333,8 @@ and omits the hash parameter. ((SV **)Perl_hv_common(aTHX_ (hv), NULL, STR_WITH_LEN(key), 0, \ (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), (val), 0)) +#define get_cvs(str, flags) \ + Perl_get_cvn_flags(aTHX_ STR_WITH_LEN(str), (flags)) /* =head1 Miscellaneous Functions @@ -408,33 +420,36 @@ C). =head1 Character classes =for apidoc Am|bool|isALNUM|char ch -Returns a boolean indicating whether the C C is an ASCII alphanumeric -character (including underscore) or digit. +Returns a boolean indicating whether the C C is a US-ASCII (Basic Latin) +alphanumeric character (including underscore) or digit. =for apidoc Am|bool|isALPHA|char ch -Returns a boolean indicating whether the C C is an ASCII alphabetic -character. +Returns a boolean indicating whether the C C is a US-ASCII (Basic Latin) +alphabetic character. =for apidoc Am|bool|isSPACE|char ch -Returns a boolean indicating whether the C C is whitespace. +Returns a boolean indicating whether the C C is a US-ASCII (Basic Latin) +whitespace. =for apidoc Am|bool|isDIGIT|char ch -Returns a boolean indicating whether the C C is an ASCII +Returns a boolean indicating whether the C C is a US-ASCII (Basic Latin) digit. =for apidoc Am|bool|isUPPER|char ch -Returns a boolean indicating whether the C C is an uppercase -character. +Returns a boolean indicating whether the C C is a US-ASCII (Basic Latin) +uppercase character. =for apidoc Am|bool|isLOWER|char ch -Returns a boolean indicating whether the C C is a lowercase -character. +Returns a boolean indicating whether the C C is a US-ASCII (Basic Latin) +lowercase character. =for apidoc Am|char|toUPPER|char ch -Converts the specified character to uppercase. +Converts the specified character to uppercase. Characters outside the +US-ASCII (Basic Latin) range are viewed as not having any case. =for apidoc Am|char|toLOWER|char ch -Converts the specified character to lowercase. +Converts the specified character to lowercase. Characters outside the +US-ASCII (Basic Latin) range are viewed as not having any case. =cut */ @@ -723,10 +738,10 @@ PoisonWith(0xEF) for catching access to freed memory. #ifdef PERL_MALLOC_WRAP #define MEM_WRAP_CHECK(n,t) MEM_WRAP_CHECK_1(n,t,PL_memory_wrap) #define MEM_WRAP_CHECK_1(n,t,a) \ - (void)(sizeof(t) > 1 && ((MEM_SIZE)(n)+0.0) > MEM_SIZE_MAX/sizeof(t) && (Perl_croak_nocontext(a),0)) + (void)(sizeof(t) > 1 && ((MEM_SIZE)(n)+0.0) > MEM_SIZE_MAX/sizeof(t) && (Perl_croak_nocontext("%s",(a)),0)) #define MEM_WRAP_CHECK_(n,t) MEM_WRAP_CHECK(n,t), -#define PERL_STRLEN_ROUNDUP(n) ((void)(((n) > MEM_SIZE_MAX - 2 * PERL_STRLEN_ROUNDUP_QUANTUM) ? (Perl_croak_nocontext(PL_memory_wrap),0):0),((n-1+PERL_STRLEN_ROUNDUP_QUANTUM)&~((MEM_SIZE)PERL_STRLEN_ROUNDUP_QUANTUM-1))) +#define PERL_STRLEN_ROUNDUP(n) ((void)(((n) > MEM_SIZE_MAX - 2 * PERL_STRLEN_ROUNDUP_QUANTUM) ? (Perl_croak_nocontext("%s",PL_memory_wrap),0):0),((n-1+PERL_STRLEN_ROUNDUP_QUANTUM)&~((MEM_SIZE)PERL_STRLEN_ROUNDUP_QUANTUM-1))) #else