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cdhash_cmp: rational literals with fractions

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Nobu kindly pointed out that rational literals can have fractions.
This commit is contained in:
卜部昌平 2021-05-07 11:07:11 +09:00
parent 2bc293e899
commit d0e6c6e682
Notes: git 2021-05-12 10:31:14 +09:00 
Merged: https://github.com/ruby/ruby/pull/4469
2 changed files with 7 additions and 2 deletions
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5
compile.c
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@ -2006,8 +2006,9 @@ cdhash_cmp(VALUE val, VALUE lit)
return rb_float_cmp(lit, val);
}
else if (tlit == T_RATIONAL) {
/* Rational literals don't have fractions. */
return cdhash_cmp(val, rb_rational_num(lit));
const struct RRational *dat1 = RRATIONAL(val);
const struct RRational *dat2 = RRATIONAL(lit);
return (dat1->num == dat2->num) && (dat1->den == dat2->den);
}
else {
UNREACHABLE_RETURN(-1);

4
test/ruby/test_rational.rb
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@ -835,6 +835,10 @@ class Rational_Test < Test::Unit::TestCase
n = case 1 when 2r then false else true end
assert_equal(n, true, '[ruby-core:103759] [Bug #17854]')
RUBY
assert_separately([], <<-RUBY)
n = case 3/2r when 1.5r then true else false end
assert_equal(n, true, '[ruby-core:103759] [Bug #17854]')
RUBY
end
def test_Rational_with_invalid_exception