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| author | Kenta Murata <3959+mrkn@users.noreply.github.com> | 2022-12-26 21:02:47 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-26 21:02:47 +0900 |
| commit | 9f2378959e5c5b5c39c9993f1a84e5304ff113d6 (patch) | |
| tree | be3582344869f036ed52b0c0a96e24d7c5655f9d /test/ruby/test_float.rb | |
| parent | bb60e4615f49a4dbc4f0eb776c8773feabb1a66f (diff) | |
numeric.c: Fix round_half_even for specific values (#7023)
Handle the integert and the float parts separately in round_half_even
to prevent error occursions in floating point calculation.
Notes
Notes:
Merged-By: mrkn <mrkn@ruby-lang.org>
Diffstat (limited to 'test/ruby/test_float.rb')
| -rw-r--r-- | test/ruby/test_float.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb index fdc5d28ed7..35cde1e951 100644 --- a/test/ruby/test_float.rb +++ b/test/ruby/test_float.rb @@ -486,6 +486,17 @@ class TestFloat < Test::Unit::TestCase assert_equal(-1.26, -1.255.round(2)) end + def test_round_half_even_with_precision + assert_equal(767573.18759, 767573.1875850001.round(5, half: :even)) + assert_equal(767573.18758, 767573.187585.round(5, half: :even)) + assert_equal(767573.18758, 767573.1875849998.round(5, half: :even)) + assert_equal(767573.18758, 767573.187575.round(5, half: :even)) + assert_equal(-767573.18759, -767573.1875850001.round(5, half: :even)) + assert_equal(-767573.18758, -767573.187585.round(5, half: :even)) + assert_equal(-767573.18758, -767573.1875849998.round(5, half: :even)) + assert_equal(-767573.18758, -767573.187575.round(5, half: :even)) + end + def test_floor_with_precision assert_equal(+0.0, +0.001.floor(1)) assert_equal(-0.1, -0.001.floor(1)) |