diff options
Diffstat (limited to 'src/string/strchr.c')
| -rw-r--r-- | src/string/strchr.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/src/string/strchr.c b/src/string/strchr.c index e606f4fe..2fe03386 100644 --- a/src/string/strchr.c +++ b/src/string/strchr.c @@ -10,14 +10,16 @@ char *strchr(const char *s, int c) { - c = (char)c; + size_t *w, k; + + c = (unsigned char)c; if (!c) return (char *)s + strlen(s); - for (; ((uintptr_t)s & ALIGN) && *s && *s != c; s++); - if (*s && *s != c) { - const size_t *w; - size_t k = ONES * c; - for (w = (const void *)s; !HASZERO(*w) && !HASZERO(*w^k); w++); - for (s = (const void *)w; *s && *s != c; s++); - } - return *s ? (char *)s : 0; + + for (; ((uintptr_t)s & ALIGN) && *s; s++) + if (*(unsigned char *)s == c) return (char *)s; + k = ONES * c; + for (w = (void *)s; !HASZERO(*w) && !HASZERO(*w^k); w++); + for (s = (void *)w; *s; s++) + if (*(unsigned char *)s == c) return (char *)s; + return 0; } |