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Declare memccpy, strdup, strndup for C2X.

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C2X adds the memccpy, strdup and strndup functions.  This patch duly
adds __GLIBC_USE (ISOC2X) to the conditions under which <string.h>
declares them.

Tested for x86_64.

	* string/string.h (memccpy): Also declare if [__GLIBC_USE (ISOC2X)].
	(strdup): Likewise.
	(strndup): Likewise.
This commit is contained in:
Joseph Myers
2019-08-13 11:27:06 +00:00
parent 777d75fbc0
commit a8c2fa984a
2 changed files with 7 additions and 3 deletions
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6
string/string.h
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@ -49,7 +49,7 @@ extern void *memmove (void *__dest, const void *__src, size_t __n)
/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
Return the position in DEST one byte past where C was copied,
or NULL if C was not found in the first N bytes of SRC. */
#if defined __USE_MISC || defined __USE_XOPEN
#if defined __USE_MISC || defined __USE_XOPEN || __GLIBC_USE (ISOC2X)
extern void *memccpy (void *__restrict __dest, const void *__restrict __src,
int __c, size_t __n)
__THROW __nonnull ((1, 2));
@ -161,7 +161,7 @@ extern size_t strxfrm_l (char *__dest, const char *__src, size_t __n,
#endif
#if (defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 \
|| __GLIBC_USE (LIB_EXT2))
|| __GLIBC_USE (LIB_EXT2) || __GLIBC_USE (ISOC2X))
/* Duplicate S, returning an identical malloc'd string. */
extern char *strdup (const char *__s)
__THROW __attribute_malloc__ __nonnull ((1));
@ -170,7 +170,7 @@ extern char *strdup (const char *__s)
/* Return a malloc'd copy of at most N bytes of STRING. The
resultant string is terminated even if no null terminator
appears before STRING[N]. */
#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)
#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2) || __GLIBC_USE (ISOC2X)
extern char *strndup (const char *__string, size_t __n)
__THROW __attribute_malloc__ __nonnull ((1));
#endif