Heinrich Bohne created NUMBERS-99:
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Summary: Fraction.add(int) and Fraction.subtract(int) ignore risk
of integer overflow
Key: NUMBERS-99
URL: https://issues.apache.org/jira/browse/NUMBERS-99
Project: Commons Numbers
Issue Type: Bug
Components: fraction
Reporter: Heinrich Bohne
The methods {{add(int)}} and {{subtract(int)}} in the class
{{org.apache.commons.numbers.fraction.Fraction}} do not take into account the
risk of an integer overflow. For example, (2^31^ - 1)/2 + 1 = (2^31^ + 1)/2,
so the numerator overflows an {{int}}, but when calculated with
{{Fraction.add(int)}}, the method still returns normally.
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