mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-17 03:49:46 +08:00
79e419de62
As a commonly-included header, the #define basename in <string.h> can
affect code which uses "basename" for its own purposes (e.g. struct
members or C++ namespaced functions). When such cases occur and some
code includes <string.h> and some not, then errors result. OTOH,
<libgen.h> is rarely used, and that's where the renaming occurs in
glibc, so code using <libgen.h> should already be safe.
* libc/include/libgen.h (basename): Define as __xpg_basename
for source compatibility with glibc.
Declare with __ASMNAME("basename") for ABI compatibility.
* libc/include/string.h (basename): Define as basename for
source compatibility with glibc.
Declare with __ASMNAME("__gnu_basename") for ABI compatibility.
187 lines
5.8 KiB
C
187 lines
5.8 KiB
C
/*
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* string.h
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*
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* Definitions for memory and string functions.
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*/
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#ifndef _STRING_H_
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#define _STRING_H_
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#include "_ansi.h"
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#include <sys/reent.h>
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#include <sys/cdefs.h>
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#include <sys/features.h>
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#define __need_size_t
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#define __need_NULL
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#include <stddef.h>
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_BEGIN_STD_C
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_PTR _EXFUN(memchr,(const _PTR, int, size_t));
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int _EXFUN(memcmp,(const _PTR, const _PTR, size_t));
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_PTR _EXFUN(memcpy,(_PTR __restrict, const _PTR __restrict, size_t));
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_PTR _EXFUN(memmove,(_PTR, const _PTR, size_t));
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_PTR _EXFUN(memset,(_PTR, int, size_t));
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char *_EXFUN(strcat,(char *__restrict, const char *__restrict));
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char *_EXFUN(strchr,(const char *, int));
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int _EXFUN(strcmp,(const char *, const char *));
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int _EXFUN(strcoll,(const char *, const char *));
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char *_EXFUN(strcpy,(char *__restrict, const char *__restrict));
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size_t _EXFUN(strcspn,(const char *, const char *));
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char *_EXFUN(strerror,(int));
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size_t _EXFUN(strlen,(const char *));
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char *_EXFUN(strncat,(char *__restrict, const char *__restrict, size_t));
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int _EXFUN(strncmp,(const char *, const char *, size_t));
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char *_EXFUN(strncpy,(char *__restrict, const char *__restrict, size_t));
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char *_EXFUN(strpbrk,(const char *, const char *));
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char *_EXFUN(strrchr,(const char *, int));
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size_t _EXFUN(strspn,(const char *, const char *));
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char *_EXFUN(strstr,(const char *, const char *));
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#ifndef _REENT_ONLY
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char *_EXFUN(strtok,(char *__restrict, const char *__restrict));
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#endif
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size_t _EXFUN(strxfrm,(char *__restrict, const char *__restrict, size_t));
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#if __POSIX_VISIBLE
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char *_EXFUN(strtok_r,(char *__restrict, const char *__restrict, char **__restrict));
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#endif
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#if __BSD_VISIBLE
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int _EXFUN(bcmp,(const void *, const void *, size_t));
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void _EXFUN(bcopy,(const void *, void *, size_t));
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void _EXFUN(bzero,(void *, size_t));
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int _EXFUN(ffs,(int));
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char *_EXFUN(index,(const char *, int));
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#endif
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#if __BSD_VISIBLE || __XSI_VISIBLE
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_PTR _EXFUN(memccpy,(_PTR __restrict, const _PTR __restrict, int, size_t));
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#endif
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#if __GNU_VISIBLE
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_PTR _EXFUN(mempcpy,(_PTR, const _PTR, size_t));
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_PTR _EXFUN(memmem, (const _PTR, size_t, const _PTR, size_t));
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#endif
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_PTR _EXFUN(memrchr,(const _PTR, int, size_t));
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#if __GNU_VISIBLE
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_PTR _EXFUN(rawmemchr,(const _PTR, int));
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#endif
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#if __BSD_VISIBLE
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char *_EXFUN(rindex,(const char *, int));
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#endif
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char *_EXFUN(stpcpy,(char *__restrict, const char *__restrict));
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char *_EXFUN(stpncpy,(char *__restrict, const char *__restrict, size_t));
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#if __BSD_VISIBLE || __POSIX_VISIBLE
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int _EXFUN(strcasecmp,(const char *, const char *));
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#endif
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#if __GNU_VISIBLE
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char *_EXFUN(strcasestr,(const char *, const char *));
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char *_EXFUN(strchrnul,(const char *, int));
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#endif
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#if __XSI_VISIBLE >= 500
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char *_EXFUN(strdup,(const char *));
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#endif
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#ifndef __STRICT_ANSI__
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char *_EXFUN(_strdup_r,(struct _reent *, const char *));
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#endif
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#if __XSI_VISIBLE >= 700
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char *_EXFUN(strndup,(const char *, size_t));
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#endif
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#ifndef __STRICT_ANSI__
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char *_EXFUN(_strndup_r,(struct _reent *, const char *, size_t));
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#endif
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#if __GNU_VISIBLE
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int _EXFUN(ffsl,(long));
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int _EXFUN(ffsll, (long long));
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#endif
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/* There are two common strerror_r variants. If you request
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_GNU_SOURCE, you get the GNU version; otherwise you get the POSIX
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version. POSIX requires that #undef strerror_r will still let you
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invoke the underlying function, but that requires gcc support. */
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#if __GNU_VISIBLE
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char *_EXFUN(strerror_r,(int, char *, size_t));
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#else
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# ifdef __GNUC__
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int _EXFUN(strerror_r,(int, char *, size_t))
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#ifdef __ASMNAME
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__asm__ (__ASMNAME ("__xpg_strerror_r"))
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#endif
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;
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# else
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int _EXFUN(__xpg_strerror_r,(int, char *, size_t));
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# define strerror_r __xpg_strerror_r
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# endif
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#endif
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/* Reentrant version of strerror. */
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char * _EXFUN(_strerror_r, (struct _reent *, int, int, int *));
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#if __BSD_VISIBLE
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size_t _EXFUN(strlcat,(char *, const char *, size_t));
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size_t _EXFUN(strlcpy,(char *, const char *, size_t));
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#endif
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#if __BSD_VISIBLE || __POSIX_VISIBLE
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int _EXFUN(strncasecmp,(const char *, const char *, size_t));
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#endif
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#if !defined(__STRICT_ANSI__) || __POSIX_VISIBLE >= 200809 || \
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__XSI_VISIBLE >= 700
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size_t _EXFUN(strnlen,(const char *, size_t));
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#endif
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#if __BSD_VISIBLE
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char *_EXFUN(strsep,(char **, const char *));
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#endif
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/*
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* The origin of these is unknown to me so I am conditionalizing them
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* on __STRICT_ANSI__. Finetuning this is definitely needed. --joel
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*/
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#if !defined(__STRICT_ANSI__)
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char *_EXFUN(strlwr,(char *));
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char *_EXFUN(strupr,(char *));
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#endif
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#ifndef DEFS_H /* Kludge to work around problem compiling in gdb */
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char *_EXFUN(strsignal, (int __signo));
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#endif
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#ifdef __CYGWIN__
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int _EXFUN(strtosigno, (const char *__name));
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#endif
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#if defined _GNU_SOURCE && defined __GNUC__
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#define strdupa(__s) \
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(__extension__ ({const char *__in = (__s); \
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size_t __len = strlen (__in) + 1; \
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char * __out = (char *) __builtin_alloca (__len); \
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(char *) memcpy (__out, __in, __len);}))
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#define strndupa(__s, __n) \
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(__extension__ ({const char *__in = (__s); \
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size_t __len = strnlen (__in, (__n)) + 1; \
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char *__out = (char *) __builtin_alloca (__len); \
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__out[__len-1] = '\0'; \
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(char *) memcpy (__out, __in, __len-1);}))
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#endif /* _GNU_SOURCE && __GNUC__ */
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/* There are two common basename variants. If you do NOT #include <libgen.h>
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and you do
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#define _GNU_SOURCE
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#include <string.h>
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you get the GNU version. Otherwise you get the POSIX versionfor which you
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should #include <libgen.h>i for the function prototype. POSIX requires that
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#undef basename will still let you invoke the underlying function. However,
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this also implies that the POSIX version is used in this case. That's made
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sure here. */
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#if __GNU_VISIBLE && !defined(basename)
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# define basename basename
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char *_EXFUN(__nonnull (1) basename,(const char *)) __asm__(__ASMNAME("__gnu_basename"));
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#endif
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#include <sys/string.h>
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_END_STD_C
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#endif /* _STRING_H_ */
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