timer: handle time going backwards.

[ccan] / ccan / str / str.c

/* CC0 (Public domain) - see LICENSE file for details */
#include <ccan/str/str.h>

size_t strcount(const char *haystack, const char *needle)
{
        size_t i = 0, nlen = strlen(needle);

        while ((haystack = strstr(haystack, needle)) != NULL) {
                i++;
                haystack += nlen;
        }
        return i;
}