this could actually cause rare crashes in the case where a short
string is located at the end of a page and the following page is not
readable, and in fact this was seen in gcc compiling certain files.
c = (unsigned char)c;
if (!c) return (char *)s + strlen(s);
- for (; ((uintptr_t)s & ALIGN) && *s; s++)
+ for (; ((uintptr_t)s & ALIGN); s++)
if (*(unsigned char *)s == c) return (char *)s;
+ else if (!*s) return 0;
k = ONES * c;
for (w = (void *)s; !HASZERO(*w) && !HASZERO(*w^k); w++);
for (s = (void *)w; *s; s++)