py: Fix bug in mpz_and function.

Addresses issue #610.
2026-01-07 20:50:14 +01:00 · 2014-05-12 23:27:29 +01:00
parent cc97446ca5
commit 561e425903
2 changed files with 10 additions and 2 deletions
--- a/py/mpz.c
+++ b/py/mpz.c
@@ -213,8 +213,8 @@ STATIC uint mpn_and(mpz_dig_t *idig, const mpz_dig_t *jdig, uint jlen, const mpz
        *idig = *jdig & *kdig;
    }

-    for (; jlen > 0; --jlen, ++idig) {
-        *idig = 0;
+    // remove trailing zeros
+    for (; idig > oidig && *idig == 0; --idig) {
    }

    return idig - oidig;