#include @ABSOLUTE_STRING_H@
-/* GL_LINK_WARNING("literal string") arranges to emit the literal string as
- a linker warning on most glibc systems.
- We use a linker warning rather than a preprocessor warning, because
- #warning cannot be used inside macros. */
-#ifndef GL_LINK_WARNING
- /* This works on platforms with GNU ld and ELF object format.
- Testing __GLIBC__ is sufficient for asserting that GNU ld is in use.
- Testing __ELF__ guarantees the ELF object format.
- Testing __GNUC__ is necessary for the compound expression syntax. */
-# if defined __GLIBC__ && defined __ELF__ && defined __GNUC__
-# define GL_LINK_WARNING(message) \
- GL_LINK_WARNING1 (__FILE__, __LINE__, message)
-# define GL_LINK_WARNING1(file, line, message) \
- GL_LINK_WARNING2 (file, line, message) /* macroexpand file and line */
-# define GL_LINK_WARNING2(file, line, message) \
- GL_LINK_WARNING3 (file ":" #line ": " message)
-# define GL_LINK_WARNING3(message) \
- ({ static const char warning[sizeof (message)] \
- __attribute__ ((__unused__, \
- __section__ (".gnu.warning"), \
- __aligned__ (1))) \
- = message "\n"; \
- (void)0; \
- })
-# else
-# define GL_LINK_WARNING(message) ((void) 0)
-# endif
-#endif
+/* The definition of GL_LINK_WARNING is copied here. */
#ifdef __cplusplus
# endif
#elif defined GNULIB_POSIXCHECK
# undef memmem
-# define memmem memmem_is_unportable__use_gnulib_module_memmem_for_portability
+# define memmem(a,al,b,bl) \
+ (GL_LINK_WARNING ("memmem is unportable - "\
+ "use gnulib module memmem for portability"), \
+ memmem (a, al, b, bl))
#endif
/* Copy N bytes of SRC to DEST, return pointer to bytes after the
# endif
#elif defined GNULIB_POSIXCHECK
# undef mempcpy
-# define mempcpy mempcpy_is_unportable__use_gnulib_module_mempcpy_for_portability
+# define mempcpy(a,b,n) \
+ (GL_LINK_WARNING ("mempcpy is unportable - "\
+ "use gnulib module mempcpy for portability"), \
+ mempcpy (a, b, n))
#endif
/* Search backwards through a block for a byte (specified as an int). */
# endif
#elif defined GNULIB_POSIXCHECK
# undef memrchr
-# define memrchr memrchr_is_unportable__use_gnulib_module_memrchr_for_portability
+# define memrchr(a,b,c) \
+ (GL_LINK_WARNING ("memrchr is unportable - "\
+ "use gnulib module memrchr for portability"), \
+ memrchr (a, b, c))
#endif
/* Copy SRC to DST, returning the address of the terminating '\0' in DST. */
# endif
#elif defined GNULIB_POSIXCHECK
# undef stpcpy
-# define stpcpy stpcpy_is_unportable__use_gnulib_module_stpcpy_for_portability
+# define stpcpy(a,b) \
+ (GL_LINK_WARNING ("stpcpy is unportable - "\
+ "use gnulib module stpcpy for portability"), \
+ stpcpy (a, b))
#endif
/* Copy no more than N bytes of SRC to DST, returning a pointer past the
# endif
#elif defined GNULIB_POSIXCHECK
# undef stpncpy
-# define stpncpy stpncpy_is_unportable__use_gnulib_module_stpncpy_for_portability
+# define stpncpy(a,b,n) \
+ (GL_LINK_WARNING ("stpncpy is unportable - "\
+ "use gnulib module stpncpy for portability"), \
+ stpncpy (a, b, n))
#endif
/* Compare strings S1 and S2, ignoring case, returning less than, equal to or
as a sequence of bytes, not of characters. */
# undef strcasecmp
# define strcasecmp(a,b) \
- (GL_LINK_WARNING ("strcasecmp cannot work correctly on character strings in multibyte locales - use mbscasecmp if you care about internationalization, or use c_strcasecmp (from gnulib module c-strcase) if you want a locale independent function"), \
+ (GL_LINK_WARNING ("strcasecmp cannot work correctly on character strings " \
+ "in multibyte locales - "\
+ "use mbscasecmp if you care about " \
+ "internationalization, or use c_strcasecmp (from " \
+ "gnulib module c-strcase) if you want a locale " \
+ "independent function"), \
strcasecmp (a, b))
#endif
POSIX says that it operates on "strings", and "string" in POSIX is defined
as a sequence of bytes, not of characters. */
# undef strncasecmp
-# define strncasecmp(a,b) \
- (GL_LINK_WARNING ("strncasecmp cannot work correctly on character strings in multibyte locales - don't use it if you care about internationalization; use c_strncasecmp (from gnulib module c-strcase) if you want a locale independent function"), \
- strncasecmp (a, b))
+# define strncasecmp(a,b,n) \
+ (GL_LINK_WARNING ("strncasecmp cannot work correctly on character " \
+ "strings in multibyte locales - "\
+ "use mbsncasecmp or mbspcasecmp if you care about " \
+ "internationalization, or use c_strncasecmp (from " \
+ "gnulib module c-strcase) if you want a locale " \
+ "independent function"), \
+ strncasecmp (a, b, n))
#endif
#if defined GNULIB_POSIXCHECK
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"), \
+ (GL_LINK_WARNING ("strchr cannot work correctly on character strings " \
+ "in some multibyte locales - "\
+ "use mbschr if you care about internationalization"), \
strchr (s, c))
#endif
# endif
#elif defined GNULIB_POSIXCHECK
# undef strchrnul
-# define strchrnul strchrnul_is_unportable__use_gnulib_module_strchrnul_for_portability
+# define strchrnul(a,b) \
+ (GL_LINK_WARNING ("strchrnul is unportable - "\
+ "use gnulib module strchrnul for portability"), \
+ strchrnul (a, b))
#endif
/* Duplicate S, returning an identical malloc'd string. */
# endif
#elif defined GNULIB_POSIXCHECK
# undef strdup
-# define strdup strdup_is_unportable__use_gnulib_module_strdup_for_portability
+# define strdup(a) \
+ (GL_LINK_WARNING ("strdup is unportable - "\
+ "use gnulib module strdup for portability"), \
+ strdup (a))
#endif
/* Return a newly allocated copy of at most N bytes of STRING. */
# endif
#elif defined GNULIB_POSIXCHECK
# undef strndup
-# define strndup strndup_is_unportable__use_gnulib_module_strndup_for_portability
+# define strndup(a,n) \
+ (GL_LINK_WARNING ("strndup is unportable - "\
+ "use gnulib module strndup for portability"), \
+ strndup (a, n))
#endif
/* Find the length (number of bytes) of STRING, but scan at most
# endif
#elif defined GNULIB_POSIXCHECK
# undef strnlen
-# define strnlen strnlen_is_unportable__use_gnulib_module_strnlen_for_portability
+# define strnlen(a,n) \
+ (GL_LINK_WARNING ("strnlen is unportable - "\
+ "use gnulib module strnlen for portability"), \
+ strnlen (a, n))
#endif
#if defined GNULIB_POSIXCHECK
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"), \
+ (GL_LINK_WARNING ("strcspn cannot work correctly on character strings " \
+ "in multibyte locales - "\
+ "use mbscspn if you care about internationalization"), \
strcspn (s, a))
#endif
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"), \
+ (GL_LINK_WARNING ("strpbrk cannot work correctly on character strings " \
+ "in multibyte locales - "\
+ "use mbspbrk if you care about internationalization"), \
strpbrk (s, a))
# endif
#elif defined GNULIB_POSIXCHECK
# undef strpbrk
-# define strpbrk strpbrk_is_unportable__use_gnulib_module_strpbrk_for_portability
+# define strpbrk(s,a) \
+ (GL_LINK_WARNING ("strpbrk is unportable - "\
+ "use gnulib module strpbrk for portability"), \
+ strpbrk (s, a))
#endif
#if defined GNULIB_POSIXCHECK
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"), \
+ (GL_LINK_WARNING ("strspn cannot work correctly on character strings " \
+ "in multibyte locales - "\
+ "use mbsspn if you care about internationalization"), \
strspn (s, a))
#endif
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"), \
+ (GL_LINK_WARNING ("strrchr cannot work correctly on character strings " \
+ "in some multibyte locales - "\
+ "use mbsrchr if you care about internationalization"), \
strrchr (s, c))
#endif
# if ! @HAVE_STRSEP@
extern char *strsep (char **restrict __stringp, char const *restrict __delim);
# endif
+# 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))
+# endif
#elif defined GNULIB_POSIXCHECK
# undef strsep
-# define strsep strsep_is_unportable__use_gnulib_module_strsep_for_portability
+# define strsep(s,d) \
+ (GL_LINK_WARNING ("strsep is unportable - "\
+ "use gnulib module strsep for portability"), \
+ strsep (s, d))
#endif
#if defined GNULIB_POSIXCHECK
as a sequence of bytes, not of characters. */
# undef strstr
# define strstr(a,b) \
- (GL_LINK_WARNING ("strstr cannot work correctly on character strings in most multibyte locales - use mbsstr if you care about internationalization"), \
+ (GL_LINK_WARNING ("strstr cannot work correctly on character strings " \
+ "in most multibyte locales - "\
+ "use mbsstr if you care about internationalization"), \
strstr (a, b))
#endif
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"), \
+ (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))
#endif
See also strsep(). */
#if @GNULIB_STRTOK_R@
# if ! @HAVE_DECL_STRTOK_R@
-extern char *strtok_r (char *restrict __s, char const *restrict __sep,
- char **restrict __lasts);
+extern char *strtok_r (char *restrict s, char const *restrict delim,
+ char **restrict save_ptr);
+# endif
+# 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))
# endif
#elif defined GNULIB_POSIXCHECK
# undef strtok_r
-# define strtok_r strtok_r_is_unportable__use_gnulib_module_strtok_r_for_portability
+# 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))
#endif
/* The following functions are not specified by POSIX. They are gnulib
extensions. */
+#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);
+#endif
+
#if @GNULIB_MBSCHR@
/* Locate the first single-byte character C in the character string STRING,
and return a pointer to it. Return NULL if C is not found in STRING.
extern int mbscasecmp (const char *s1, const char *s2);
#endif
+#if @GNULIB_MBSNCASECMP@
+/* Compare the initial segment of the character string S1 consisting of at most
+ N characters with the initial segment of the character string S2 consisting
+ of at most N characters, ignoring case, returning less than, equal to or
+ greater than zero if the initial segment of S1 is lexicographically less
+ than, equal to or greater than the initial segment of S2.
+ Note: This function may, in multibyte locales, return 0 for initial segments
+ 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);
+#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!
+ Unlike strncasecmp(), this function works correctly in multibyte
+ locales. */
+extern char * mbspcasecmp (const char *string, const char *prefix);
+#endif
+
#if @GNULIB_MBSCASESTR@
/* Find the first occurrence of the character string NEEDLE in the character
string HAYSTACK, using case-insensitive comparison.
extern size_t mbsspn (const char *string, const char *reject);
#endif
+#if @GNULIB_MBSSEP@
+/* Search the next delimiter (multibyte character listed in the character
+ string DELIM) starting at the character string *STRINGP.
+ If one is found, overwrite it with a NUL, and advance *STRINGP to point
+ to the next multibyte character after it. Otherwise, set *STRINGP to NULL.
+ If *STRINGP was already NULL, nothing happens.
+ Return the old value of *STRINGP.
+
+ This is a variant of mbstok_r() that supports empty fields.
+
+ 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 mbstok_r(). */
+extern char * mbssep (char **stringp, const char *delim);
+#endif
+
+#if @GNULIB_MBSTOK_R@
+/* Parse the character string STRING into tokens separated by characters in
+ 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"
+
+ 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);
+#endif
+
#ifdef __cplusplus
}
projects / gnulib.git / blobdiff