musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/string/strcspn.c b/src/string/strcspn.c
index c843ff97..cfdba114 100644
--- a/src/string/strcspn.c
+++ b/src/string/strcspn.c

@@ -3,13 +3,14 @@

#define BITOP(a,b,op) \

((a)[(size_t)(b)/(8*sizeof *(a))] op (size_t)1<<((size_t)(b)%(8*sizeof *(a))))

+char *__strchrnul(const char *, int);

+

size_t strcspn(const char *s, const char *c)

{

const char *a = s;

size_t byteset[32/sizeof(size_t)];

- if (!c[0]) return strlen(s);

- if (!c[1]) return (s=strchr(s, *c)) ? s-a : strlen(a);

+ if (!c[0] || !c[1]) return __strchrnul(s, *c)-a;

memset(byteset, 0, sizeof byteset);

for (; *c && BITOP(byteset, *(unsigned char *)c, |=); c++);