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string.h: add strndupa

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Emil Renner Berthing 2014-09-19 19:43:10 +02:00
commit 6310769c3c
1 changed files with 7 additions and 0 deletions
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7
include/string.h
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@ -86,6 +86,13 @@ size_t strlcpy (char *, const char *, size_t);
#ifdef _GNU_SOURCE
#define strdupa(x) strcpy(alloca(strlen(x)+1),x)
#define strndupa(x, l) ({ \
const char *__old = (x); \
size_t __len = strnlen(__old, (l)); \
char *__new = (char *)alloca(__len + 1); \
__new[__len] = '\0'; \
(char *)memcpy(__new, __old, __len); \
})
int strverscmp (const char *, const char *);
int strcasecmp_l (const char *, const char *, locale_t);
int strncasecmp_l (const char *, const char *, size_t, locale_t);