2015-09-15 14:46:09 +00:00
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System.print(123.sign) // expect: 1
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System.print((-123).sign) // expect: -1
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System.print(0.sign) // expect: 0
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System.print((-0).sign) // expect: 0
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System.print(0.123.sign) // expect: 1
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System.print((-0.123).sign) // expect: -1
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