diff options
Diffstat (limited to 'lib/string/stpcpy.c')
| -rw-r--r-- | lib/string/stpcpy.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/lib/string/stpcpy.c b/lib/string/stpcpy.c deleted file mode 100644 index 0c1f1b4..0000000 --- a/lib/string/stpcpy.c +++ /dev/null @@ -1,32 +0,0 @@ -/* SPDX-License-Identifier: MIT */ -/* Derived from musl libc (Copyright © 2005-2020 Rich Felker, et al.) */ - -#include <string.h> -#include <stdint.h> -#include <limits.h> - -#define ALIGN (sizeof(size_t)) -#define ONES ((size_t)-1/UCHAR_MAX) -#define HIGHS (ONES * (UCHAR_MAX/2+1)) -#define HASZERO(x) ((x)-ONES & ~(x) & HIGHS) - -char *__stpcpy(char *restrict d, const char *restrict s) -{ -#ifdef __GNUC__ - typedef size_t __attribute__((__may_alias__)) word; - word *wd; - const word *ws; - if ((uintptr_t)s % ALIGN == (uintptr_t)d % ALIGN) { - for (; (uintptr_t)s % ALIGN; s++, d++) - if (!(*d=*s)) return d; - wd=(void *)d; ws=(const void *)s; - for (; !HASZERO(*ws); *wd++ = *ws++); - d=(void *)wd; s=(const void *)ws; - } -#endif - for (; (*d=*s); s++, d++); - - return d; -} - -weak_alias(__stpcpy, stpcpy); |
