Function env_positive_int

src/foundation/limits.c:32–44

Shared env-int parser: a positive integer in [1, INT_MAX], else the fallback. * Read fresh each call (see cbm_max_file_bytes rationale — cheap, test-friendly, * no stale memoized copy across runs). */

 * Read fresh each call (see cbm_max_file_bytes rationale — cheap, test-friendly,
 * no stale memoized copy across runs). */
static int env_positive_int(const char *name, int fallback) {
    const char *raw = getenv(name);
    if (raw && raw[0]) {
        errno = 0;
        char *end = NULL;
        long v = strtol(raw, &end, 10);
        if (errno == 0 && end != raw && *end == '\0' && v > 0 && v <= INT_MAX) {
            return (int)v;
        }
        /* Unparseable / non-positive / out-of-range → safe default. */
    }
    return fallback;
}

int cbm_cypher_max_depth(void) {
    /* 10 — generous for a code call/def graph; an explicit `*1..N` above this is