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bigint.c (mrb_bint_cmp): avoid object allocation for comparison.

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2022-04-11 11:12:47 +09:00
parent f63f57391f
commit 0ec5c3e493
1 changed files with 10 additions and 2 deletions
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src/bigint.c
+10 -2
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@@ -1243,11 +1243,19 @@ mrb_bint_cmp(mrb_state *mrb, mrb_value x, mrb_value y)
return -1;
}
#endif
struct RBigint *b = RBIGINT(x);
if (!mrb_bigint_p(y)) {
if (!mrb_integer_p(y)) return -2; /* type mismatch */
y = mrb_bint_new_int(mrb, mrb_integer(y));
mrb_int i1, i2 = mrb_integer(y);
if (mpz_get_int(&b->mp, &i1)) {
if (i1 == i2) return 0;
if (i1 > i2) return 1;
return -1;
}
if (b->mp.sn > 0) return 1;
return -1;
}
struct RBigint *b = RBIGINT(x);
struct RBigint *b2 = RBIGINT(y);
return mpz_cmp(mrb, &b->mp, &b2->mp);
}