func test6506() {
// nothing to run, just make sure this compiles
var x C.size_t
C.calloc(x, x)
C.malloc(x)
C.realloc(nil, x)
C.memcpy(nil, nil, x)
C.memcmp(nil, nil, x)
C.memmove(nil, nil, x)
C.strncpy(nil, nil, x)
C.strncmp(nil, nil, x)
C.strncat(nil, nil, x)
x = C.strxfrm(nil, nil, x)
C.memchr(nil, 0, x)
x = C.strcspn(nil, nil)
x = C.strspn(nil, nil)
C.memset(nil, 0, x)
x = C.strlen(nil)
_ = x
}
func IndexOfChar(s string, sep string) int {
return int(C.strcspn(C.CString(s), C.CString(sep)))
}