diff options
Diffstat (limited to 'gnulib/lib/string.in.h')
| -rw-r--r-- | gnulib/lib/string.in.h | 880 |
1 files changed, 662 insertions, 218 deletions
diff --git a/gnulib/lib/string.in.h b/gnulib/lib/string.in.h index 41e765c..d7a6c9c 100644 --- a/gnulib/lib/string.in.h +++ b/gnulib/lib/string.in.h @@ -1,6 +1,6 @@ /* A GNU-like <string.h>. - Copyright (C) 1995-1996, 2001-2008 Free Software Foundation, Inc. + Copyright (C) 1995-1996, 2001-2013 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -13,84 +13,202 @@ GNU General Public License for more details. You should have received a copy of the GNU 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. */ + along with this program; if not, see <http://www.gnu.org/licenses/>. */ -#ifndef _GL_STRING_H +#ifndef _@GUARD_PREFIX@_STRING_H + +#if __GNUC__ >= 3 +@PRAGMA_SYSTEM_HEADER@ +#endif +@PRAGMA_COLUMNS@ /* The include_next requires a split double-inclusion guard. */ #@INCLUDE_NEXT@ @NEXT_STRING_H@ -#ifndef _GL_STRING_H -#define _GL_STRING_H +#ifndef _@GUARD_PREFIX@_STRING_H +#define _@GUARD_PREFIX@_STRING_H + +/* NetBSD 5.0 mis-defines NULL. */ +#include <stddef.h> + +/* MirBSD defines mbslen as a macro. */ +#if @GNULIB_MBSLEN@ && defined __MirBSD__ +# include <wchar.h> +#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. */ -#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 */ +/* The definition of _GL_ARG_NONNULL is copied here. */ + +/* 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 -/* The attribute __pure__ was added in gcc 2.96. */ -# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96) -# define __pure__ /* empty */ +_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 -/* The definition of GL_LINK_WARNING is copied here. */ +/* 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 -#ifdef __cplusplus -extern "C" { +/* Return the first instance of C within N bytes of S, or NULL. */ +#if @GNULIB_MEMCHR@ +# if @REPLACE_MEMCHR@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define memchr rpl_memchr +# endif +_GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) + _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) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); +# endif + /* On some systems, this function is defined as an overloaded function: + extern "C" { const void * std::memchr (const void *, int, size_t); } + extern "C++" { void * std::memchr (void *, int, size_t); } */ +_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) && !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 *, + (void const *__s, int __c, size_t __n)); +# else +_GL_CXXALIASWARN (memchr); +# endif +#elif defined GNULIB_POSIXCHECK +# undef memchr +/* Assume memchr is always declared. */ +_GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - " + "use gnulib module memchr for portability" ); #endif - /* Return the first occurrence of NEEDLE in HAYSTACK. */ #if @GNULIB_MEMMEM@ # if @REPLACE_MEMMEM@ -# define memmem rpl_memmem -# endif -# if ! @HAVE_DECL_MEMMEM@ || @REPLACE_MEMMEM@ -extern void *memmem (void const *__haystack, size_t __haystack_len, - void const *__needle, size_t __needle_len) - __attribute__ ((__pure__)); +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define memmem rpl_memmem +# endif +_GL_FUNCDECL_RPL (memmem, void *, + (void const *__haystack, size_t __haystack_len, + void const *__needle, size_t __needle_len) + _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)); +# else +# if ! @HAVE_DECL_MEMMEM@ +_GL_FUNCDECL_SYS (memmem, void *, + (void const *__haystack, size_t __haystack_len, + void const *__needle, size_t __needle_len) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 3))); +# endif +_GL_CXXALIAS_SYS (memmem, void *, + (void const *__haystack, size_t __haystack_len, + void const *__needle, size_t __needle_len)); # endif +_GL_CXXALIASWARN (memmem); #elif defined GNULIB_POSIXCHECK # undef memmem -# define memmem(a,al,b,bl) \ - (GL_LINK_WARNING ("memmem is unportable and often quadratic - " \ - "use gnulib module memmem-simple for portability, " \ - "and module memmem for speed" ), \ - memmem (a, al, b, bl)) +# if HAVE_RAW_DECL_MEMMEM +_GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - " + "use gnulib module memmem-simple for portability, " + "and module memmem for speed" ); +# endif #endif /* Copy N bytes of SRC to DEST, return pointer to bytes after the last written byte. */ #if @GNULIB_MEMPCPY@ # if ! @HAVE_MEMPCPY@ -extern void *mempcpy (void *restrict __dest, void const *restrict __src, - size_t __n); +_GL_FUNCDECL_SYS (mempcpy, void *, + (void *restrict __dest, void const *restrict __src, + size_t __n) + _GL_ARG_NONNULL ((1, 2))); # endif +_GL_CXXALIAS_SYS (mempcpy, void *, + (void *restrict __dest, void const *restrict __src, + size_t __n)); +_GL_CXXALIASWARN (mempcpy); #elif defined GNULIB_POSIXCHECK # undef mempcpy -# define mempcpy(a,b,n) \ - (GL_LINK_WARNING ("mempcpy is unportable - " \ - "use gnulib module mempcpy for portability"), \ - mempcpy (a, b, n)) +# if HAVE_RAW_DECL_MEMPCPY +_GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " + "use gnulib module mempcpy for portability"); +# endif #endif /* Search backwards through a block for a byte (specified as an int). */ #if @GNULIB_MEMRCHR@ # if ! @HAVE_DECL_MEMRCHR@ -extern void *memrchr (void const *, int, size_t) - __attribute__ ((__pure__)); +_GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); +# endif + /* On some systems, this function is defined as an overloaded function: + extern "C++" { const void * std::memrchr (const void *, int, size_t); } + extern "C++" { void * std::memrchr (void *, 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) && !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)); +# else +_GL_CXXALIASWARN (memrchr); # endif #elif defined GNULIB_POSIXCHECK # undef memrchr -# define memrchr(a,b,c) \ - (GL_LINK_WARNING ("memrchr is unportable - " \ - "use gnulib module memrchr for portability"), \ - memrchr (a, b, c)) +# if HAVE_RAW_DECL_MEMRCHR +_GL_WARN_ON_USE (memrchr, "memrchr is unportable - " + "use gnulib module memrchr for portability"); +# endif #endif /* Find the first occurrence of C in S. More efficient than @@ -98,115 +216,237 @@ extern void *memrchr (void const *, int, size_t) occur within N bytes. */ #if @GNULIB_RAWMEMCHR@ # if ! @HAVE_RAWMEMCHR@ -extern void *rawmemchr (void const *__s, int __c_in) - __attribute__ ((__pure__)); +_GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); +# endif + /* On some systems, this function is defined as an overloaded function: + extern "C++" { const void * std::rawmemchr (const void *, int); } + extern "C++" { void * std::rawmemchr (void *, int); } */ +_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) && !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)); +# else +_GL_CXXALIASWARN (rawmemchr); # endif #elif defined GNULIB_POSIXCHECK # undef rawmemchr -# define rawmemchr(a,b) \ - (GL_LINK_WARNING ("rawmemchr is unportable - " \ - "use gnulib module rawmemchr for portability"), \ - rawmemchr (a, b)) +# if HAVE_RAW_DECL_RAWMEMCHR +_GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - " + "use gnulib module rawmemchr for portability"); +# endif #endif /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */ #if @GNULIB_STPCPY@ # if ! @HAVE_STPCPY@ -extern char *stpcpy (char *restrict __dst, char const *restrict __src); +_GL_FUNCDECL_SYS (stpcpy, char *, + (char *restrict __dst, char const *restrict __src) + _GL_ARG_NONNULL ((1, 2))); # endif +_GL_CXXALIAS_SYS (stpcpy, char *, + (char *restrict __dst, char const *restrict __src)); +_GL_CXXALIASWARN (stpcpy); #elif defined GNULIB_POSIXCHECK # undef stpcpy -# define stpcpy(a,b) \ - (GL_LINK_WARNING ("stpcpy is unportable - " \ - "use gnulib module stpcpy for portability"), \ - stpcpy (a, b)) +# if HAVE_RAW_DECL_STPCPY +_GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " + "use gnulib module stpcpy for portability"); +# endif #endif /* Copy no more than N bytes of SRC to DST, returning a pointer past the last non-NUL byte written into DST. */ #if @GNULIB_STPNCPY@ -# if ! @HAVE_STPNCPY@ -# define stpncpy gnu_stpncpy -extern char *stpncpy (char *restrict __dst, char const *restrict __src, - size_t __n); +# if @REPLACE_STPNCPY@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef stpncpy +# define stpncpy rpl_stpncpy +# endif +_GL_FUNCDECL_RPL (stpncpy, char *, + (char *restrict __dst, char const *restrict __src, + size_t __n) + _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (stpncpy, char *, + (char *restrict __dst, char const *restrict __src, + size_t __n)); +# else +# if ! @HAVE_STPNCPY@ +_GL_FUNCDECL_SYS (stpncpy, char *, + (char *restrict __dst, char const *restrict __src, + size_t __n) + _GL_ARG_NONNULL ((1, 2))); +# endif +_GL_CXXALIAS_SYS (stpncpy, char *, + (char *restrict __dst, char const *restrict __src, + size_t __n)); # endif +_GL_CXXALIASWARN (stpncpy); #elif defined GNULIB_POSIXCHECK # undef stpncpy -# define stpncpy(a,b,n) \ - (GL_LINK_WARNING ("stpncpy is unportable - " \ - "use gnulib module stpncpy for portability"), \ - stpncpy (a, b, n)) +# if HAVE_RAW_DECL_STPNCPY +_GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " + "use gnulib module stpncpy for portability"); +# endif #endif #if defined GNULIB_POSIXCHECK /* strchr() does not work with multibyte strings if the locale encoding is GB18030 and the character to be searched is a digit. */ # undef strchr -# define strchr(s,c) \ - (GL_LINK_WARNING ("strchr cannot work correctly on character strings " \ - "in some multibyte locales - " \ - "use mbschr if you care about internationalization"), \ - strchr (s, c)) +/* Assume strchr is always declared. */ +_GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings " + "in some multibyte locales - " + "use mbschr if you care about internationalization"); #endif /* Find the first occurrence of C in S or the final NUL byte. */ #if @GNULIB_STRCHRNUL@ -# if ! @HAVE_STRCHRNUL@ -extern char *strchrnul (char const *__s, int __c_in) - __attribute__ ((__pure__)); +# 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) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); +# 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)); +# 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)); +# else +_GL_CXXALIASWARN (strchrnul); # endif #elif defined GNULIB_POSIXCHECK # undef strchrnul -# define strchrnul(a,b) \ - (GL_LINK_WARNING ("strchrnul is unportable - " \ - "use gnulib module strchrnul for portability"), \ - strchrnul (a, b)) +# if HAVE_RAW_DECL_STRCHRNUL +_GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " + "use gnulib module strchrnul for portability"); +# endif #endif /* Duplicate S, returning an identical malloc'd string. */ #if @GNULIB_STRDUP@ -# if ! @HAVE_DECL_STRDUP@ && ! defined strdup -extern char *strdup (char const *__s); +# if @REPLACE_STRDUP@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strdup +# define strdup rpl_strdup +# endif +_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 +_GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); # endif +_GL_CXXALIASWARN (strdup); #elif defined GNULIB_POSIXCHECK # undef strdup -# define strdup(a) \ - (GL_LINK_WARNING ("strdup is unportable - " \ - "use gnulib module strdup for portability"), \ - strdup (a)) +# if HAVE_RAW_DECL_STRDUP +_GL_WARN_ON_USE (strdup, "strdup is unportable - " + "use gnulib module strdup for portability"); +# endif +#endif + +/* Append no more than N characters from SRC onto DEST. */ +#if @GNULIB_STRNCAT@ +# if @REPLACE_STRNCAT@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strncat +# define strncat rpl_strncat +# endif +_GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n) + _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n)); +# else +_GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n)); +# endif +_GL_CXXALIASWARN (strncat); +#elif defined GNULIB_POSIXCHECK +# undef strncat +# if HAVE_RAW_DECL_STRNCAT +_GL_WARN_ON_USE (strncat, "strncat is unportable - " + "use gnulib module strncat for portability"); +# endif #endif /* Return a newly allocated copy of at most N bytes of STRING. */ #if @GNULIB_STRNDUP@ -# if ! @HAVE_STRNDUP@ -# undef strndup -# define strndup rpl_strndup -# endif -# if ! @HAVE_STRNDUP@ || ! @HAVE_DECL_STRNDUP@ -extern char *strndup (char const *__string, size_t __n); +# if @REPLACE_STRNDUP@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strndup +# define strndup rpl_strndup +# endif +_GL_FUNCDECL_RPL (strndup, char *, (char const *__string, size_t __n) + _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (strndup, char *, (char const *__string, size_t __n)); +# else +# if ! @HAVE_DECL_STRNDUP@ +_GL_FUNCDECL_SYS (strndup, char *, (char const *__string, size_t __n) + _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (strndup, char *, (char const *__string, size_t __n)); # endif +_GL_CXXALIASWARN (strndup); #elif defined GNULIB_POSIXCHECK # undef strndup -# define strndup(a,n) \ - (GL_LINK_WARNING ("strndup is unportable - " \ - "use gnulib module strndup for portability"), \ - strndup (a, n)) +# if HAVE_RAW_DECL_STRNDUP +_GL_WARN_ON_USE (strndup, "strndup is unportable - " + "use gnulib module strndup for portability"); +# endif #endif /* Find the length (number of bytes) of STRING, but scan at most MAXLEN bytes. If no '\0' terminator is found in that many bytes, return MAXLEN. */ #if @GNULIB_STRNLEN@ -# if ! @HAVE_DECL_STRNLEN@ -extern size_t strnlen (char const *__string, size_t __maxlen) - __attribute__ ((__pure__)); +# if @REPLACE_STRNLEN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strnlen +# define strnlen rpl_strnlen +# endif +_GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen) + _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) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)); # endif +_GL_CXXALIASWARN (strnlen); #elif defined GNULIB_POSIXCHECK # undef strnlen -# define strnlen(a,n) \ - (GL_LINK_WARNING ("strnlen is unportable - " \ - "use gnulib module strnlen for portability"), \ - strnlen (a, n)) +# if HAVE_RAW_DECL_STRNLEN +_GL_WARN_ON_USE (strnlen, "strnlen is unportable - " + "use gnulib module strnlen for portability"); +# endif #endif #if defined GNULIB_POSIXCHECK @@ -215,18 +455,32 @@ extern size_t strnlen (char const *__string, size_t __maxlen) locale encoding is GB18030 and one of the characters to be searched is a digit. */ # undef strcspn -# define strcspn(s,a) \ - (GL_LINK_WARNING ("strcspn cannot work correctly on character strings " \ - "in multibyte locales - " \ - "use mbscspn if you care about internationalization"), \ - strcspn (s, a)) +/* Assume strcspn is always declared. */ +_GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " + "in multibyte locales - " + "use mbscspn if you care about internationalization"); #endif /* Find the first occurrence in S of any character in ACCEPT. */ #if @GNULIB_STRPBRK@ # if ! @HAVE_STRPBRK@ -extern char *strpbrk (char const *__s, char const *__accept) - __attribute__ ((__pure__)); +_GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2))); +# endif + /* On some systems, this function is defined as an overloaded function: + extern "C" { const char * strpbrk (const char *, const char *); } + extern "C++" { char * strpbrk (char *, const char *); } */ +_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) && !defined __UCLIBC__) \ + && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) +_GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); +_GL_CXXALIASWARN1 (strpbrk, char const *, + (char const *__s, char const *__accept)); +# else +_GL_CXXALIASWARN (strpbrk); # endif # if defined GNULIB_POSIXCHECK /* strpbrk() assumes the second argument is a list of single-byte characters. @@ -234,40 +488,36 @@ extern char *strpbrk (char const *__s, char const *__accept) locale encoding is GB18030 and one of the characters to be searched is a digit. */ # undef strpbrk -# define strpbrk(s,a) \ - (GL_LINK_WARNING ("strpbrk cannot work correctly on character strings " \ - "in multibyte locales - " \ - "use mbspbrk if you care about internationalization"), \ - strpbrk (s, a)) +_GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings " + "in multibyte locales - " + "use mbspbrk if you care about internationalization"); # endif #elif defined GNULIB_POSIXCHECK # undef strpbrk -# define strpbrk(s,a) \ - (GL_LINK_WARNING ("strpbrk is unportable - " \ - "use gnulib module strpbrk for portability"), \ - strpbrk (s, a)) +# if HAVE_RAW_DECL_STRPBRK +_GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - " + "use gnulib module strpbrk for portability"); +# endif #endif #if defined GNULIB_POSIXCHECK /* strspn() assumes the second argument is a list of single-byte characters. Even in this simple case, it cannot work with multibyte strings. */ # undef strspn -# define strspn(s,a) \ - (GL_LINK_WARNING ("strspn cannot work correctly on character strings " \ - "in multibyte locales - " \ - "use mbsspn if you care about internationalization"), \ - strspn (s, a)) +/* Assume strspn is always declared. */ +_GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings " + "in multibyte locales - " + "use mbsspn if you care about internationalization"); #endif #if defined GNULIB_POSIXCHECK /* strrchr() does not work with multibyte strings if the locale encoding is GB18030 and the character to be searched is a digit. */ # undef strrchr -# define strrchr(s,c) \ - (GL_LINK_WARNING ("strrchr cannot work correctly on character strings " \ - "in some multibyte locales - " \ - "use mbsrchr if you care about internationalization"), \ - strrchr (s, c)) +/* Assume strrchr is always declared. */ +_GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings " + "in some multibyte locales - " + "use mbsrchr if you care about internationalization"); #endif /* Search the next delimiter (char listed in DELIM) starting at *STRINGP. @@ -288,29 +538,51 @@ extern char *strpbrk (char const *__s, char const *__accept) See also strtok_r(). */ #if @GNULIB_STRSEP@ # if ! @HAVE_STRSEP@ -extern char *strsep (char **restrict __stringp, char const *restrict __delim); +_GL_FUNCDECL_SYS (strsep, char *, + (char **restrict __stringp, char const *restrict __delim) + _GL_ARG_NONNULL ((1, 2))); # endif +_GL_CXXALIAS_SYS (strsep, char *, + (char **restrict __stringp, char const *restrict __delim)); +_GL_CXXALIASWARN (strsep); # if defined GNULIB_POSIXCHECK # undef strsep -# define strsep(s,d) \ - (GL_LINK_WARNING ("strsep cannot work correctly on character strings " \ - "in multibyte locales - " \ - "use mbssep if you care about internationalization"), \ - strsep (s, d)) +_GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings " + "in multibyte locales - " + "use mbssep if you care about internationalization"); # endif #elif defined GNULIB_POSIXCHECK # undef strsep -# define strsep(s,d) \ - (GL_LINK_WARNING ("strsep is unportable - " \ - "use gnulib module strsep for portability"), \ - strsep (s, d)) +# if HAVE_RAW_DECL_STRSEP +_GL_WARN_ON_USE (strsep, "strsep is unportable - " + "use gnulib module strsep for portability"); +# endif #endif #if @GNULIB_STRSTR@ # if @REPLACE_STRSTR@ -# define strstr rpl_strstr -char *strstr (const char *haystack, const char *needle) - __attribute__ ((__pure__)); +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define strstr rpl_strstr +# endif +_GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2))); +_GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); +# else + /* On some systems, this function is defined as an overloaded function: + extern "C++" { const char * strstr (const char *, const char *); } + extern "C++" { char * strstr (char *, const char *); } */ +_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) && !defined __UCLIBC__) \ + && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) +_GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); +_GL_CXXALIASWARN1 (strstr, const char *, + (const char *haystack, const char *needle)); +# else +_GL_CXXALIASWARN (strstr); # endif #elif defined GNULIB_POSIXCHECK /* strstr() does not work with multibyte strings if the locale encoding is @@ -318,48 +590,72 @@ char *strstr (const char *haystack, const char *needle) POSIX says that it operates on "strings", and "string" in POSIX is defined as a sequence of bytes, not of characters. */ # undef strstr -# define strstr(a,b) \ - (GL_LINK_WARNING ("strstr is quadratic on many systems, and cannot " \ - "work correctly on character strings in most " \ - "multibyte locales - " \ - "use mbsstr if you care about internationalization, " \ - "or use strstr if you care about speed"), \ - strstr (a, b)) +/* Assume strstr is always declared. */ +_GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " + "work correctly on character strings in most " + "multibyte locales - " + "use mbsstr if you care about internationalization, " + "or use strstr if you care about speed"); #endif /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive comparison. */ #if @GNULIB_STRCASESTR@ # if @REPLACE_STRCASESTR@ -# define strcasestr rpl_strcasestr +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define strcasestr rpl_strcasestr +# endif +_GL_FUNCDECL_RPL (strcasestr, char *, + (const char *haystack, const char *needle) + _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) + _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 *); } + extern "C++" { char * strcasestr (char *, const char *); } */ +_GL_CXXALIAS_SYS_CAST2 (strcasestr, + char *, (const char *haystack, const char *needle), + const char *, (const char *haystack, const char *needle)); # endif -# if ! @HAVE_STRCASESTR@ || @REPLACE_STRCASESTR@ -extern char *strcasestr (const char *haystack, const char *needle) - __attribute__ ((__pure__)); +# 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 *, + (const char *haystack, const char *needle)); +# else +_GL_CXXALIASWARN (strcasestr); # endif #elif defined GNULIB_POSIXCHECK /* strcasestr() does not work with multibyte strings: It is a glibc extension, and glibc implements it only for unibyte locales. */ # undef strcasestr -# define strcasestr(a,b) \ - (GL_LINK_WARNING ("strcasestr does work correctly on character strings " \ - "in multibyte locales - " \ - "use mbscasestr if you care about " \ - "internationalization, or use c-strcasestr if you want " \ - "a locale independent function"), \ - strcasestr (a, b)) +# if HAVE_RAW_DECL_STRCASESTR +_GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character " + "strings in multibyte locales - " + "use mbscasestr if you care about " + "internationalization, or use c-strcasestr if you want " + "a locale independent function"); +# endif #endif /* Parse S into tokens separated by characters in DELIM. If S is NULL, the saved pointer in SAVE_PTR is used as the next starting point. For example: - char s[] = "-abc-=-def"; - char *sp; - x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" - x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL - x = strtok_r(NULL, "=", &sp); // x = NULL - // s = "abc\0-def\0" + char s[] = "-abc-=-def"; + char *sp; + x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" + x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL + x = strtok_r(NULL, "=", &sp); // x = NULL + // s = "abc\0-def\0" This is a variant of strtok() that is multithread-safe. @@ -374,24 +670,44 @@ extern char *strcasestr (const char *haystack, const char *needle) See also strsep(). */ #if @GNULIB_STRTOK_R@ -# if ! @HAVE_DECL_STRTOK_R@ -extern char *strtok_r (char *restrict s, char const *restrict delim, - char **restrict save_ptr); +# if @REPLACE_STRTOK_R@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strtok_r +# define strtok_r rpl_strtok_r +# endif +_GL_FUNCDECL_RPL (strtok_r, char *, + (char *restrict s, char const *restrict delim, + char **restrict save_ptr) + _GL_ARG_NONNULL ((2, 3))); +_GL_CXXALIAS_RPL (strtok_r, char *, + (char *restrict s, char const *restrict delim, + char **restrict save_ptr)); +# else +# if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK +# undef strtok_r +# endif +# if ! @HAVE_DECL_STRTOK_R@ +_GL_FUNCDECL_SYS (strtok_r, char *, + (char *restrict s, char const *restrict delim, + char **restrict save_ptr) + _GL_ARG_NONNULL ((2, 3))); +# endif +_GL_CXXALIAS_SYS (strtok_r, char *, + (char *restrict s, char const *restrict delim, + char **restrict save_ptr)); # endif +_GL_CXXALIASWARN (strtok_r); # if defined GNULIB_POSIXCHECK -# undef strtok_r -# define strtok_r(s,d,p) \ - (GL_LINK_WARNING ("strtok_r cannot work correctly on character strings " \ - "in multibyte locales - " \ - "use mbstok_r if you care about internationalization"), \ - strtok_r (s, d, p)) +_GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character " + "strings in multibyte locales - " + "use mbstok_r if you care about internationalization"); # endif #elif defined GNULIB_POSIXCHECK # undef strtok_r -# define strtok_r(s,d,p) \ - (GL_LINK_WARNING ("strtok_r is unportable - " \ - "use gnulib module strtok_r for portability"), \ - strtok_r (s, d, p)) +# if HAVE_RAW_DECL_STRTOK_R +_GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " + "use gnulib module strtok_r for portability"); +# endif #endif @@ -401,13 +717,32 @@ extern char *strtok_r (char *restrict s, char const *restrict delim, #if @GNULIB_MBSLEN@ /* Return the number of multibyte characters in the character string STRING. This considers multibyte characters, unlike strlen, which counts bytes. */ -extern size_t mbslen (const char *string); +# ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */ +# undef mbslen +# endif +# if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define mbslen rpl_mbslen +# endif +_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_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); +# endif +_GL_CXXALIASWARN (mbslen); #endif #if @GNULIB_MBSNLEN@ /* Return the number of multibyte characters in the character string starting at STRING and ending at STRING + LEN. */ -extern size_t mbsnlen (const char *string, size_t len); +_GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1)); #endif #if @GNULIB_MBSCHR@ @@ -415,8 +750,21 @@ extern size_t mbsnlen (const char *string, size_t len); and return a pointer to it. Return NULL if C is not found in STRING. Unlike strchr(), this function works correctly in multibyte locales with encodings such as GB18030. */ -# define mbschr rpl_mbschr /* avoid collision with HP-UX function */ -extern char * mbschr (const char *string, int c); +# if defined __hpux +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# 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 +_GL_CXXALIASWARN (mbschr); #endif #if @GNULIB_MBSRCHR@ @@ -424,8 +772,21 @@ extern char * mbschr (const char *string, int c); 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. */ -# define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */ -extern char * mbsrchr (const char *string, int c); +# if defined __hpux || defined __INTERIX +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# 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 +_GL_CXXALIASWARN (mbsrchr); #endif #if @GNULIB_MBSSTR@ @@ -433,7 +794,9 @@ extern char * mbsrchr (const char *string, int c); string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK. Unlike strstr(), this function works correctly in multibyte locales with encodings different from UTF-8. */ -extern char * mbsstr (const char *haystack, const char *needle); +_GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSCASECMP@ @@ -443,7 +806,9 @@ extern char * mbsstr (const char *haystack, const char *needle); Note: This function may, in multibyte locales, return 0 for strings of different lengths! Unlike strcasecmp(), this function works correctly in multibyte locales. */ -extern int mbscasecmp (const char *s1, const char *s2); +_GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSNCASECMP@ @@ -456,20 +821,23 @@ extern int mbscasecmp (const char *s1, const char *s2); of different lengths! Unlike strncasecmp(), this function works correctly in multibyte locales. But beware that N is not a byte count but a character count! */ -extern int mbsncasecmp (const char *s1, const char *s2, size_t n); +_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. */ -extern char * mbspcasecmp (const char *string, const char *prefix); +_GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSCASESTR@ @@ -478,7 +846,9 @@ extern char * mbspcasecmp (const char *string, const char *prefix); Note: This function may, in multibyte locales, return success even if strlen (haystack) < strlen (needle) ! Unlike strcasestr(), this function works correctly in multibyte locales. */ -extern char * mbscasestr (const char *haystack, const char *needle); +_GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSCSPN@ @@ -487,7 +857,9 @@ extern char * mbscasestr (const char *haystack, const char *needle); beginning of the string to this occurrence, or to the end of the string if none exists. Unlike strcspn(), this function works correctly in multibyte locales. */ -extern size_t mbscspn (const char *string, const char *accept); +_GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSPBRK@ @@ -495,8 +867,21 @@ extern size_t mbscspn (const char *string, const char *accept); in the character string ACCEPT. Return the pointer to it, or NULL if none exists. Unlike strpbrk(), this function works correctly in multibyte locales. */ -# define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ -extern char * mbspbrk (const char *string, const char *accept); +# if defined __hpux +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# 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 +_GL_CXXALIASWARN (mbspbrk); #endif #if @GNULIB_MBSSPN@ @@ -505,7 +890,9 @@ extern char * mbspbrk (const char *string, const char *accept); beginning of the string to this occurrence, or to the end of the string if none exists. Unlike strspn(), this function works correctly in multibyte locales. */ -extern size_t mbsspn (const char *string, const char *reject); +_GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) + _GL_ATTRIBUTE_PURE + _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSSEP@ @@ -523,7 +910,8 @@ extern size_t mbsspn (const char *string, const char *reject); Caveat: The identity of the delimiting character is lost. See also mbstok_r(). */ -extern char * mbssep (char **stringp, const char *delim); +_GL_EXTERN_C char * mbssep (char **stringp, const char *delim) + _GL_ARG_NONNULL ((1, 2)); #endif #if @GNULIB_MBSTOK_R@ @@ -531,55 +919,111 @@ extern char * mbssep (char **stringp, const char *delim); the character string DELIM. If STRING is NULL, the saved pointer in SAVE_PTR is used as the next starting point. For example: - char s[] = "-abc-=-def"; - char *sp; - x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" - x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL - x = mbstok_r(NULL, "=", &sp); // x = NULL - // s = "abc\0-def\0" + char s[] = "-abc-=-def"; + char *sp; + x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" + x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL + x = mbstok_r(NULL, "=", &sp); // x = NULL + // s = "abc\0-def\0" Caveat: It modifies the original string. Caveat: These functions cannot be used on constant strings. Caveat: The identity of the delimiting character is lost. See also mbssep(). */ -extern char * mbstok_r (char *string, const char *delim, char **save_ptr); +_GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr) + _GL_ARG_NONNULL ((2, 3)); #endif /* Map any int, typically from errno, into an error message. */ #if @GNULIB_STRERROR@ # if @REPLACE_STRERROR@ -# undef strerror -# define strerror rpl_strerror -extern char *strerror (int); +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strerror +# define strerror rpl_strerror +# endif +_GL_FUNCDECL_RPL (strerror, char *, (int)); +_GL_CXXALIAS_RPL (strerror, char *, (int)); +# else +_GL_CXXALIAS_SYS (strerror, char *, (int)); # endif +_GL_CXXALIASWARN (strerror); #elif defined GNULIB_POSIXCHECK # undef strerror -# define strerror(e) \ - (GL_LINK_WARNING ("strerror is unportable - " \ - "use gnulib module strerror to guarantee non-NULL result"), \ - strerror (e)) +/* Assume strerror is always declared. */ +_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@ -# define strsignal rpl_strsignal -# endif -# if ! @HAVE_DECL_STRSIGNAL@ || @REPLACE_STRSIGNAL@ -extern char *strsignal (int __sig); +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define strsignal rpl_strsignal +# endif +_GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); +_GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); +# else +# if ! @HAVE_DECL_STRSIGNAL@ +_GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); +# endif +/* Need to cast, because on Cygwin 1.5.x systems, the return type is + 'const char *'. */ +_GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); # endif +_GL_CXXALIASWARN (strsignal); #elif defined GNULIB_POSIXCHECK # undef strsignal -# define strsignal(a) \ - (GL_LINK_WARNING ("strsignal is unportable - " \ - "use gnulib module strsignal for portability"), \ - strsignal (a)) +# if HAVE_RAW_DECL_STRSIGNAL +_GL_WARN_ON_USE (strsignal, "strsignal is unportable - " + "use gnulib module strsignal for portability"); +# endif #endif - -#ifdef __cplusplus -} +#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 *)); +_GL_CXXALIASWARN (strverscmp); +#elif defined GNULIB_POSIXCHECK +# undef strverscmp +# if HAVE_RAW_DECL_STRVERSCMP +_GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " + "use gnulib module strverscmp for portability"); +# endif #endif -#endif /* _GL_STRING_H */ -#endif /* _GL_STRING_H */ + +#endif /* _@GUARD_PREFIX@_STRING_H */ +#endif /* _@GUARD_PREFIX@_STRING_H */ |