/* A GNU-like <string.h>.
- Copyright (C) 1995-1996, 2001-2010 Free Software Foundation, Inc.
+ Copyright (C) 1995-1996, 2001-2014 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
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>
# 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. */
/* The definition of _GL_ARG_NONNULL is copied here. */
/* The definition of _GL_WARN_ON_USE is copied here. */
-#ifdef __cplusplus
-extern "C" {
+/* 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@
-# define memchr rpl_memchr
-extern void *memchr (void const *__s, int __c, size_t __n)
- __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1));
+# 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
/* 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__)) _GL_ARG_NONNULL ((1, 3));
+# 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
# if HAVE_RAW_DECL_MEMMEM
last written byte. */
#if @GNULIB_MEMPCPY@
# if ! @HAVE_MEMPCPY@
-extern void *mempcpy (void *restrict __dest, void const *restrict __src,
- size_t __n)
- _GL_ARG_NONNULL ((1, 2));
+_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
# if HAVE_RAW_DECL_MEMPCPY
/* 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_ARG_NONNULL ((1));
+_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
occur within N bytes. */
#if @GNULIB_RAWMEMCHR@
# if ! @HAVE_RAWMEMCHR@
-extern void *rawmemchr (void const *__s, int __c_in)
- __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1));
+_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
/* 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_ARG_NONNULL ((1, 2));
+_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
# if HAVE_RAW_DECL_STPCPY
/* 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)
- _GL_ARG_NONNULL ((1, 2));
+# 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
# if HAVE_RAW_DECL_STPNCPY
/* 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__)) _GL_ARG_NONNULL ((1));
+# 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
/* Duplicate S, returning an identical malloc'd string. */
#if @GNULIB_STRDUP@
# if @REPLACE_STRDUP@
-# undef strdup
-# define strdup rpl_strdup
-# endif
-# if !(@HAVE_DECL_STRDUP@ || defined strdup) || @REPLACE_STRDUP@
-extern char *strdup (char const *__s) _GL_ARG_NONNULL ((1));
+# 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
# if HAVE_RAW_DECL_STRDUP
# 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 @REPLACE_STRNDUP@
-# undef strndup
-# define strndup rpl_strndup
-# endif
-# if @REPLACE_STRNDUP@ || ! @HAVE_DECL_STRNDUP@
-extern char *strndup (char const *__string, size_t __n) _GL_ARG_NONNULL ((1));
+# 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
# if HAVE_RAW_DECL_STRNDUP
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__)) _GL_ARG_NONNULL ((1));
+# 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
# if HAVE_RAW_DECL_STRNLEN
/* 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_ARG_NONNULL ((1, 2));
+_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.
See also strtok_r(). */
#if @GNULIB_STRSEP@
# if ! @HAVE_STRSEP@
-extern char *strsep (char **restrict __stringp, char const *restrict __delim)
- _GL_ARG_NONNULL ((1, 2));
+_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
_GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings "
#if @GNULIB_STRSTR@
# if @REPLACE_STRSTR@
-# define strstr rpl_strstr
-extern char *strstr (const char *haystack, const char *needle)
- __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 2));
+# 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
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__)) _GL_ARG_NONNULL ((1, 2));
+# 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:
See also strsep(). */
#if @GNULIB_STRTOK_R@
# if @REPLACE_STRTOK_R@
-# undef strtok_r
-# define strtok_r rpl_strtok_r
-# elif @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK
-# undef strtok_r
-# endif
-# if ! @HAVE_DECL_STRTOK_R@ || @REPLACE_STRTOK_R@
-extern char *strtok_r (char *restrict s, char const *restrict delim,
- char **restrict save_ptr)
- _GL_ARG_NONNULL ((2, 3));
+# 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
_GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character "
"strings in multibyte locales - "
# undef mbslen
# endif
# if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */
-# define mbslen rpl_mbslen
+# 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
-extern size_t mbslen (const char *string) _GL_ARG_NONNULL ((1));
+_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_ARG_NONNULL ((1));
+_GL_EXTERN_C size_t mbsnlen (const char *string, size_t len)
+ _GL_ATTRIBUTE_PURE
+ _GL_ARG_NONNULL ((1));
#endif
#if @GNULIB_MBSCHR@
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) _GL_ARG_NONNULL ((1));
+# 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@
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) _GL_ARG_NONNULL ((1));
+# 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@
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
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
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
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
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
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)
- _GL_ARG_NONNULL ((1, 2));
+# 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@
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
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
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
/* Assume strerror is always declared. */
"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
# if HAVE_RAW_DECL_STRSIGNAL
#if @GNULIB_STRVERSCMP@
# if !@HAVE_STRVERSCMP@
-extern int strverscmp (const char *, const char *) _GL_ARG_NONNULL ((1, 2));
+_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
#endif
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _GL_STRING_H */
-#endif /* _GL_STRING_H */
+#endif /* _@GUARD_PREFIX@_STRING_H */
+#endif /* _@GUARD_PREFIX@_STRING_H */
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