diff options
Diffstat (limited to 'lib/string.in.h')
| -rw-r--r-- | lib/string.in.h | 215 |
1 files changed, 166 insertions, 49 deletions
diff --git a/lib/string.in.h b/lib/string.in.h index 75deca01..9a630b16 100644 --- a/lib/string.in.h +++ b/lib/string.in.h @@ -1,6 +1,6 @@ /* A GNU-like <string.h>. - Copyright (C) 1995-1996, 2001-2010 Free Software Foundation, Inc. + Copyright (C) 1995-1996, 2001-2015 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -13,20 +13,36 @@ GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef _GL_STRING_H + along with this program; if not, see <http://www.gnu.org/licenses/>. */ #if __GNUC__ >= 3 @PRAGMA_SYSTEM_HEADER@ #endif +@PRAGMA_COLUMNS@ + +#if defined _GL_ALREADY_INCLUDING_STRING_H +/* Special invocation convention: + - On OS X/NetBSD we have a sequence of nested includes + <string.h> -> <strings.h> -> "string.h" + In this situation system _chk variants due to -D_FORTIFY_SOURCE + might be used after any replacements defined here. */ + +#@INCLUDE_NEXT@ @NEXT_STRING_H@ + +#else +/* Normal invocation convention. */ + +#ifndef _@GUARD_PREFIX@_STRING_H + +#define _GL_ALREADY_INCLUDING_STRING_H /* The include_next requires a split double-inclusion guard. */ #@INCLUDE_NEXT@ @NEXT_STRING_H@ -#ifndef _GL_STRING_H -#define _GL_STRING_H +#undef _GL_ALREADY_INCLUDING_STRING_H + +#ifndef _@GUARD_PREFIX@_STRING_H +#define _@GUARD_PREFIX@_STRING_H /* NetBSD 5.0 mis-defines NULL. */ #include <stddef.h> @@ -36,17 +52,20 @@ # include <wchar.h> #endif -#ifndef __attribute__ -/* This feature is available in gcc versions 2.5 and later. */ -# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) -# define __attribute__(Spec) /* empty */ -# endif -/* The attribute __pure__ was added in gcc 2.96. */ -# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96) -# define __pure__ /* empty */ -# endif +/* The __attribute__ feature is available in gcc versions 2.5 and later. + The attribute __pure__ was added in gcc 2.96. */ +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) +# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) +#else +# define _GL_ATTRIBUTE_PURE /* empty */ #endif +/* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>. */ +/* But in any case avoid namespace pollution on glibc systems. */ +#if (@GNULIB_STRSIGNAL@ || defined GNULIB_POSIXCHECK) && defined __NetBSD__ \ + && ! defined __GLIBC__ +# include <unistd.h> +#endif /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ @@ -55,6 +74,36 @@ /* The definition of _GL_WARN_ON_USE is copied here. */ +/* Find the index of the least-significant set bit. */ +#if @GNULIB_FFSL@ +# if !@HAVE_FFSL@ +_GL_FUNCDECL_SYS (ffsl, int, (long int i)); +# endif +_GL_CXXALIAS_SYS (ffsl, int, (long int i)); +_GL_CXXALIASWARN (ffsl); +#elif defined GNULIB_POSIXCHECK +# undef ffsl +# if HAVE_RAW_DECL_FFSL +_GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module"); +# endif +#endif + + +/* Find the index of the least-significant set bit. */ +#if @GNULIB_FFSLL@ +# if !@HAVE_FFSLL@ +_GL_FUNCDECL_SYS (ffsll, int, (long long int i)); +# endif +_GL_CXXALIAS_SYS (ffsll, int, (long long int i)); +_GL_CXXALIASWARN (ffsll); +#elif defined GNULIB_POSIXCHECK +# undef ffsll +# if HAVE_RAW_DECL_FFSLL +_GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module"); +# endif +#endif + + /* Return the first instance of C within N bytes of S, or NULL. */ #if @GNULIB_MEMCHR@ # if @REPLACE_MEMCHR@ @@ -62,13 +111,13 @@ # define memchr rpl_memchr # endif _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n)); # else # if ! @HAVE_MEMCHR@ _GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); # endif /* On some systems, this function is defined as an overloaded function: @@ -78,7 +127,7 @@ _GL_CXXALIAS_SYS_CAST2 (memchr, void *, (void const *__s, int __c, size_t __n), void const *, (void const *__s, int __c, size_t __n)); # endif -# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ +# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) _GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n)); _GL_CXXALIASWARN1 (memchr, void const *, @@ -102,7 +151,8 @@ _GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - " _GL_FUNCDECL_RPL (memmem, void *, (void const *__haystack, size_t __haystack_len, void const *__needle, size_t __needle_len) - __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 3))); + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 3))); _GL_CXXALIAS_RPL (memmem, void *, (void const *__haystack, size_t __haystack_len, void const *__needle, size_t __needle_len)); @@ -111,7 +161,8 @@ _GL_CXXALIAS_RPL (memmem, void *, _GL_FUNCDECL_SYS (memmem, void *, (void const *__haystack, size_t __haystack_len, void const *__needle, size_t __needle_len) - __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 3))); + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 3))); # endif _GL_CXXALIAS_SYS (memmem, void *, (void const *__haystack, size_t __haystack_len, @@ -152,7 +203,7 @@ _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " #if @GNULIB_MEMRCHR@ # if ! @HAVE_DECL_MEMRCHR@ _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); # endif /* On some systems, this function is defined as an overloaded function: @@ -161,7 +212,7 @@ _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) _GL_CXXALIAS_SYS_CAST2 (memrchr, void *, (void const *, int, size_t), void const *, (void const *, int, size_t)); -# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ +# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) _GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t)); _GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t)); @@ -182,7 +233,7 @@ _GL_WARN_ON_USE (memrchr, "memrchr is unportable - " #if @GNULIB_RAWMEMCHR@ # if ! @HAVE_RAWMEMCHR@ _GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); # endif /* On some systems, this function is defined as an overloaded function: @@ -191,7 +242,7 @@ _GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) _GL_CXXALIAS_SYS_CAST2 (rawmemchr, void *, (void const *__s, int __c_in), void const *, (void const *__s, int __c_in)); -# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ +# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) _GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in)); _GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in)); @@ -229,6 +280,7 @@ _GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " #if @GNULIB_STPNCPY@ # if @REPLACE_STPNCPY@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef stpncpy # define stpncpy rpl_stpncpy # endif _GL_FUNCDECL_RPL (stpncpy, char *, @@ -270,18 +322,29 @@ _GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings " /* Find the first occurrence of C in S or the final NUL byte. */ #if @GNULIB_STRCHRNUL@ -# if ! @HAVE_STRCHRNUL@ +# if @REPLACE_STRCHRNUL@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define strchrnul rpl_strchrnul +# endif +_GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (strchrnul, char *, + (const char *str, int ch)); +# else +# if ! @HAVE_STRCHRNUL@ _GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); -# endif +# endif /* On some systems, this function is defined as an overloaded function: extern "C++" { const char * std::strchrnul (const char *, int); } extern "C++" { char * std::strchrnul (char *, int); } */ _GL_CXXALIAS_SYS_CAST2 (strchrnul, char *, (char const *__s, int __c_in), char const *, (char const *__s, int __c_in)); -# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ +# endif +# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) _GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in)); _GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in)); @@ -306,6 +369,10 @@ _GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " _GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (strdup, char *, (char const *__s)); # else +# if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup + /* strdup exists as a function and as a macro. Get rid of the macro. */ +# undef strdup +# endif # if !(@HAVE_DECL_STRDUP@ || defined strdup) _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); # endif @@ -378,13 +445,13 @@ _GL_WARN_ON_USE (strndup, "strndup is unportable - " # define strnlen rpl_strnlen # endif _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__string, size_t __maxlen)); # else # if ! @HAVE_DECL_STRNLEN@ _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__string, size_t __maxlen) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); # endif _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)); @@ -414,7 +481,7 @@ _GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " #if @GNULIB_STRPBRK@ # if ! @HAVE_STRPBRK@ _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2))); # endif /* On some systems, this function is defined as an overloaded function: @@ -423,7 +490,7 @@ _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) _GL_CXXALIAS_SYS_CAST2 (strpbrk, char *, (char const *__s, char const *__accept), const char *, (char const *__s, char const *__accept)); -# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ +# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) _GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); _GL_CXXALIASWARN1 (strpbrk, char const *, @@ -514,7 +581,7 @@ _GL_WARN_ON_USE (strsep, "strsep is unportable - " # define strstr rpl_strstr # endif _GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) - __attribute__ ((__pure__)) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); # else @@ -525,7 +592,7 @@ _GL_CXXALIAS_SYS_CAST2 (strstr, char *, (const char *haystack, const char *needle), const char *, (const char *haystack, const char *needle)); # endif -# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ +# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) _GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); _GL_CXXALIASWARN1 (strstr, const char *, @@ -556,14 +623,16 @@ _GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " # endif _GL_FUNCDECL_RPL (strcasestr, char *, (const char *haystack, const char *needle) - __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 2))); + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (strcasestr, char *, (const char *haystack, const char *needle)); # else # if ! @HAVE_STRCASESTR@ _GL_FUNCDECL_SYS (strcasestr, char *, (const char *haystack, const char *needle) - __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 2))); + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2))); # endif /* On some systems, this function is defined as an overloaded function: extern "C++" { const char * strcasestr (const char *, const char *); } @@ -572,7 +641,7 @@ _GL_CXXALIAS_SYS_CAST2 (strcasestr, char *, (const char *haystack, const char *needle), const char *, (const char *haystack, const char *needle)); # endif -# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ +# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) _GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle)); _GL_CXXALIASWARN1 (strcasestr, const char *, @@ -671,10 +740,14 @@ _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define mbslen rpl_mbslen # endif -_GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1))); +_GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); # else -_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1))); +_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); # endif _GL_CXXALIASWARN (mbslen); @@ -684,6 +757,7 @@ _GL_CXXALIASWARN (mbslen); /* Return the number of multibyte characters in the character string starting at STRING and ending at STRING + LEN. */ _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1)); #endif @@ -697,10 +771,12 @@ _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) # define mbschr rpl_mbschr /* avoid collision with HP-UX function */ # endif _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c)); # else _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c)); # endif @@ -712,15 +788,17 @@ _GL_CXXALIASWARN (mbschr); and return a pointer to it. Return NULL if C is not found in STRING. Unlike strrchr(), this function works correctly in multibyte locales with encodings such as GB18030. */ -# if defined __hpux +# if defined __hpux || defined __INTERIX # if !(defined __cplusplus && defined GNULIB_NAMESPACE) -# define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */ +# define mbsrchr rpl_mbsrchr /* avoid collision with system function */ # endif _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c)); # else _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c)); # endif @@ -733,6 +811,7 @@ _GL_CXXALIASWARN (mbsrchr); Unlike strstr(), this function works correctly in multibyte locales with encodings different from UTF-8. */ _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2)); #endif @@ -744,6 +823,7 @@ _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) different lengths! Unlike strcasecmp(), this function works correctly in multibyte locales. */ _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2)); #endif @@ -758,20 +838,21 @@ _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) Unlike strncasecmp(), this function works correctly in multibyte locales. But beware that N is not a byte count but a character count! */ _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSPCASECMP@ /* Compare the initial segment of the character string STRING consisting of at most mbslen (PREFIX) characters with the character string PREFIX, - ignoring case, returning less than, equal to or greater than zero if this - initial segment is lexicographically less than, equal to or greater than - PREFIX. - Note: This function may, in multibyte locales, return 0 if STRING is of - smaller length than PREFIX! + ignoring case. If the two match, return a pointer to the first byte + after this prefix in STRING. Otherwise, return NULL. + Note: This function may, in multibyte locales, return non-NULL if STRING + is of smaller length than PREFIX! Unlike strncasecmp(), this function works correctly in multibyte locales. */ _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2)); #endif @@ -782,6 +863,7 @@ _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) strlen (haystack) < strlen (needle) ! Unlike strcasestr(), this function works correctly in multibyte locales. */ _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2)); #endif @@ -792,6 +874,7 @@ _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) if none exists. Unlike strcspn(), this function works correctly in multibyte locales. */ _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2)); #endif @@ -805,10 +888,12 @@ _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ # endif _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept)); # else _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept)); # endif @@ -822,6 +907,7 @@ _GL_CXXALIASWARN (mbspbrk); if none exists. Unlike strspn(), this function works correctly in multibyte locales. */ _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2)); #endif @@ -885,6 +971,35 @@ _GL_WARN_ON_USE (strerror, "strerror is unportable - " "use gnulib module strerror to guarantee non-NULL result"); #endif +/* Map any int, typically from errno, into an error message. Multithread-safe. + Uses the POSIX declaration, not the glibc declaration. */ +#if @GNULIB_STRERROR_R@ +# if @REPLACE_STRERROR_R@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strerror_r +# define strerror_r rpl_strerror_r +# endif +_GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)); +# else +# if !@HAVE_DECL_STRERROR_R@ +_GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen) + _GL_ARG_NONNULL ((2))); +# endif +_GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)); +# endif +# if @HAVE_DECL_STRERROR_R@ +_GL_CXXALIASWARN (strerror_r); +# endif +#elif defined GNULIB_POSIXCHECK +# undef strerror_r +# if HAVE_RAW_DECL_STRERROR_R +_GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - " + "use gnulib module strerror_r-posix for portability"); +# endif +#endif + #if @GNULIB_STRSIGNAL@ # if @REPLACE_STRSIGNAL@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) @@ -912,6 +1027,7 @@ _GL_WARN_ON_USE (strsignal, "strsignal is unportable - " #if @GNULIB_STRVERSCMP@ # if !@HAVE_STRVERSCMP@ _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) + _GL_ATTRIBUTE_PURE _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); @@ -925,5 +1041,6 @@ _GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " #endif -#endif /* _GL_STRING_H */ -#endif /* _GL_STRING_H */ +#endif /* _@GUARD_PREFIX@_STRING_H */ +#endif /* _@GUARD_PREFIX@_STRING_H */ +#endif |