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add Float#nan?

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Tomoyuki Sahara
2014-02-03 15:18:52 +09:00
parent 857e3cfa7c
commit 7bf63c2876
2 changed files with 14 additions and 0 deletions
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test/t/float.rb
+7
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@@ -143,3 +143,10 @@ assert('Float#truncate', '15.2.9.3.15') do
assert_equal( 3, 3.123456789.truncate)
assert_equal(-3, -3.1.truncate)
end
assert('Float#nan?') do
assert_true (0.0/0.0).nan?
assert_false 0.0.nan?
assert_false (1.0/0.0).nan?
assert_false (-1.0/0.0).nan?
end