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mruby-bigint (mrb_bint_and): optimize bint & fixnum operation; ref #6314

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Yukihiro "Matz" Matsumoto
2024-07-24 15:13:47 +09:00
parent c16aba9280
commit e3a459d5b9
1 changed files with 7 additions and 0 deletions
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mrbgems/mruby-bigint/core/bigint.c
+7
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@@ -1507,6 +1507,13 @@ mrb_bint_and(mrb_state *mrb, mrb_value x, mrb_value y)
struct RBigint *b1 = RBIGINT(x);
struct RBigint *b3 = bint_new(mrb);
if (mrb_integer_p(y)) {
mrb_int z = mrb_integer(y);
if (z < DIG_BASE) {
z &= b1->mp.p[0];
return mrb_int_value(mrb, z);
}
}
y = mrb_as_bint(mrb, y);
struct RBigint *b2 = RBIGINT(y);
mpz_and(mrb, &b3->mp, &b1->mp, &b2->mp);