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comparison lib/string.in.h @ 9999:5f559abfabef

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Add rawmemchr module, matching glibc. * modules/string (Makefile.am): New indicator. * m4/string_h.m4 (gl_HEADER_STRING_H_DEFAULTS): Set it. * lib/string.in.h (rawmemchr): Declare when appropriate. * modules/rawmemchr: New file. * m4/rawmemchr.m4: Likewise. * lib/rawmemchr.c: Likewise. * modules/rawmemchr-tests: Likewise. * tests/test-rawmemchr.c: Likewise. * doc/glibc-functions/rawmemchr.texi (rawmemchr): Document module. * modules/strchrnul (Depends-on): Add rawmemchr. * lib/strchrnul.c (strchrnul): Optimize a corner case. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Mon, 28 Apr 2008 17:08:43 -0600
parents 69d9307c0aa0
children 8d80c477e0ad
comparison
equal deleted inserted replaced
9998:3362dfd48604 9999:5f559abfabef
89 # undef memrchr 89 # undef memrchr
90 # define memrchr(a,b,c) \ 90 # define memrchr(a,b,c) \
91 (GL_LINK_WARNING ("memrchr is unportable - " \ 91 (GL_LINK_WARNING ("memrchr is unportable - " \
92 "use gnulib module memrchr for portability"), \ 92 "use gnulib module memrchr for portability"), \
93 memrchr (a, b, c)) 93 memrchr (a, b, c))
94 #endif
95
96 /* Find the first occurrence of C in S. More efficient than
97 memchr(S,C,N), at the expense of undefined behavior if C does not
98 occur within N bytes. */
99 #if @GNULIB_RAWMEMCHR@
100 # if ! @HAVE_RAWMEMCHR@
101 extern void *rawmemchr (void const *__s, int __c_in)
102 __attribute__ ((__pure__));
103 # endif
104 #elif defined GNULIB_POSIXCHECK
105 # undef rawmemchr
106 # define rawmemchr(a,b) \
107 (GL_LINK_WARNING ("rawmemchr is unportable - " \
108 "use gnulib module rawmemchr for portability"), \
109 rawmemchr (a, b))
94 #endif 110 #endif
95 111
96 /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */ 112 /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */
97 #if @GNULIB_STPCPY@ 113 #if @GNULIB_STPCPY@
98 # if ! @HAVE_STPCPY@ 114 # if ! @HAVE_STPCPY@