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| author | Yukihiro "Matz" Matsumoto <[email protected]> | 2019-08-09 21:47:00 +0900 |
|---|---|---|
| committer | GitHub <[email protected]> | 2019-08-09 21:47:00 +0900 |
| commit | 496a2c3264aa3a2dbc50bb01e545ed4803718213 (patch) | |
| tree | ce1ecd89ddb7d67171dfda216e6e82ac79c0b373 /mrbgems/mruby-complex/test/complex.rb | |
| parent | 438638b42e13297d38198b15f2fc007e0f5a44a8 (diff) | |
| parent | 1cd0ff0d42ea4fb385288d3bd2c440a1f46e08af (diff) | |
| download | mruby-496a2c3264aa3a2dbc50bb01e545ed4803718213.tar.gz mruby-496a2c3264aa3a2dbc50bb01e545ed4803718213.zip | |
Merge pull request #4623 from chasonr/complex-fixes
Avoid premature overflow in Complex#abs and Complex#/
Diffstat (limited to 'mrbgems/mruby-complex/test/complex.rb')
| -rw-r--r-- | mrbgems/mruby-complex/test/complex.rb | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mrbgems/mruby-complex/test/complex.rb b/mrbgems/mruby-complex/test/complex.rb index 4ae80515b..d996e8277 100644 --- a/mrbgems/mruby-complex/test/complex.rb +++ b/mrbgems/mruby-complex/test/complex.rb @@ -59,6 +59,15 @@ assert 'Complex#/' do assert_complex Complex(-2, 9) / Complex(-9, 2), ((36 / 85) - (77i / 85)) assert_complex Complex(9, 8) / 4 , ((9 / 4) + 2i) assert_complex Complex(20, 9) / 9.8 , (2.0408163265306123 + 0.9183673469387754i) + if 1e39.infinite? then + # MRB_USE_FLOAT in effect + ten = 1e21 + one = 1e20 + else + ten = 1e201 + one = 1e200 + end + assert_complex Complex(ten, ten) / Complex(one, one), Complex(10.0, 0.0) end assert 'Complex#==' do @@ -70,6 +79,14 @@ end assert 'Complex#abs' do assert_float Complex(-1).abs, 1 assert_float Complex(3.0, -4.0).abs, 5.0 + if 1e39.infinite? then + # MRB_USE_FLOAT in effect + exp = 125 + else + exp = 1021 + end + assert_true Complex(3.0*2.0**exp, 4.0*2.0**exp).abs.finite? + assert_float Complex(3.0*2.0**exp, 4.0*2.0**exp).abs, 5.0*2.0**exp end assert 'Complex#abs2' do |