musl/src/string/strtok.c

#include <string.h>

char *strtok(char *restrict s, const char *restrict sep)
{
	static char *p;
	if (!s && !(s = p)) return NULL;
	s += strspn(s, sep);
	if (!*s) return p = 0;
	p = s + strcspn(s, sep);
	if (*p) *p++ = 0;
	else p = 0;
	return s;
}
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include <string.h>`

use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict. 2012-09-06 22:44:55 -04:00			`char strtok(char restrict s, const char *restrict sep)`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`{`
			`static char *p;`
			`if (!s && !(s = p)) return NULL;`
			`s += strspn(s, sep);`
			`if (!*s) return p = 0;`
			`p = s + strcspn(s, sep);`
			`if (p) p++ = 0;`
			`else p = 0;`
			`return s;`
			`}`