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Check NaN and Infinity before converting Float to Rational.

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2021-01-02 23:36:41 +09:00
parent 392aff7099
commit 757902c497
1 changed files with 4 additions and 0 deletions
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mrbgems/mruby-rational/src/rational.c
+4
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@@ -105,6 +105,9 @@ typedef float rat_float;
#else
typedef double rat_float;
#endif
void mrb_check_num_exact(mrb_state *mrb, mrb_float num);
static mrb_value
rational_new_f(mrb_state *mrb, mrb_float f0)
{
@@ -116,6 +119,7 @@ rational_new_f(mrb_state *mrb, mrb_float f0)
int64_t n = 1;
int i, neg = 0;
mrb_check_num_exact(mrb, f0);
if (f < 0) { neg = 1; f = -f; }
while (f != floor(f)) { n <<= 1; f *= 2; }
if (!TYPED_FIXABLE(f, rat_float)) {