Function cbm_strndup

src/foundation/compat.c:22–36

#ifdef _WIN32
char *cbm_strndup(const char *s, size_t n) {
    if (!s) {
        return NULL;
    }
    size_t len = 0;
    while (len < n && s[len]) {
        len++;
    }
    char *d = (char *)malloc(len + SKIP_ONE);
    if (d) {
        memcpy(d, s, len);
        d[len] = '\0';
    }
    return d;
}
#endif

/* ── strcasestr (Windows lacks it) ────────────────────────────── */