Function memmapchars

app/redis-6.2.6/src/util.c:262–272

Modify the buffer replacing all occurrences of chars from the 'from' * set with the corresponding char in the 'to' set. Always returns s. */

 * set with the corresponding char in the 'to' set. Always returns s.
 */
char *memmapchars(char *s, size_t len, const char *from, const char *to, size_t setlen) {
    for (size_t j = 0; j < len; j++) {
        for (size_t i = 0; i < setlen; i++) {
            if (s[j] == from[i]) {
                s[j] = to[i];
                break;
            }
        }
    }
    return s;
}

/* Return the number of digits of 'v' when converted to string in radix 10.
 * See ll2string() for more information. */