diff options
Diffstat (limited to 'string/string.h')
| -rw-r--r-- | string/string.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/string/string.h b/string/string.h index 0f995319bb..95dcba0041 100644 --- a/string/string.h +++ b/string/string.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 93, 95, 96 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -91,6 +91,16 @@ extern size_t strxfrm __P ((char *__dest, __const char *__src, size_t __n)); extern char *strdup __P ((__const char *__s)); #endif +#if defined (__USE_GNU) && defined (__GNUC__) +/* Duplicate S, returning an identical alloca'd string. */ +#define strdupa(s) \ +({ \ + const char *__old = (s); \ + size_t __len = strlen (__old) + 1; \ + memcpy (__builtin_alloca (__len), __old, __len); \ +}) +#endif + /* Find the first occurrence of C in S. */ extern char *strchr __P ((__const char *__s, int __c)); /* Find the last occurrence of C in S. */ |