From ea52cac1487cea91a148daffbfe0dacef672051b Mon Sep 17 00:00:00 2001 From: naruse Date: Sat, 11 Mar 2017 13:03:46 +0000 Subject: merge revision(s) 57227: [Backport #13078] numeric.c: reduce fdiv * numeric.c (rb_int_fdiv_double): reduce first for more precise result. [ruby-core:78886] [Bug #13078] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57840 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/ruby/test_rational.rb | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'test/ruby') diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb index 99f80bc561..9651f46f01 100644 --- a/test/ruby/test_rational.rb +++ b/test/ruby/test_rational.rb @@ -905,6 +905,13 @@ class Rational_Test < Test::Unit::TestCase assert_equal(5000000000.0, 10000000000.fdiv(2)) assert_equal(0.5, 1.0.fdiv(2)) assert_equal(0.25, Rational(1,2).fdiv(2)) + + a = 0xa42fcabf_c51ce400_00001000_00000000_00000000_00000000_00000000_00000000 + b = 1<<1074 + assert_equal(Rational(a, b).to_f, a.fdiv(b)) + a = 3 + b = 0x20_0000_0000_0001 + assert_equal(Rational(a, b).to_f, a.fdiv(b)) end def test_ruby19 -- cgit v1.2.3