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mruby-bigint (mrb_bint_xor): fix a bug in bigint ^ int operation

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Fix #6453; ref #6444
This commit is contained in:
Yukihiro "Matz" Matsumoto
2024-12-11 20:19:56 +09:00
parent b807c0a27d
commit 8bd62ca311
1 changed files with 4 additions and 4 deletions
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mrbgems/mruby-bigint/core/bigint.c
+4 -4
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@@ -1911,15 +1911,15 @@ mrb_bint_xor(mrb_state *mrb, mrb_value x, mrb_value y)
mpz_t a, b, c;
bint_as_mpz(RBIGINT(x), &a);
if (mrb_integer_p(y)) {
if (mrb_integer_p(y) && a.sn > 0) {
mrb_int z = mrb_integer(y);
if (z == 0) return x;
if (0 < z && (mp_dbl_limb)z < DIG_BASE) {
z ^= a.p[0];
return mrb_int_value(mrb, z);
mpz_init_set(mrb, &c, &a);
c.p[0] ^= z;
return bint_norm(mrb, bint_new(mrb, &c));
}
}
y = mrb_as_bint(mrb, y);
bint_as_mpz(RBIGINT(y), &b);
if (zero_p(&a)) return y;