[MATH-340] BigFraction numerator constrainted by int size during multiplication

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.1

Environment

All

• Assignee: Unassigned
• Reporter: Matt Taylor
• Created: 03/Feb/10 20:17
• Updated: 03/Apr/10 03:45
• Resolved: 03/Feb/10 21:21

Description

When multiplying two BigFraction objects with numerators larger than will fit in an java-primitive int the result of BigFraction.ZERO is incorrectly returned.

Test Case:

BigFraction fractionA = new BigFraction(0.00131);
BigFraction fractionB = new BigFraction(.37).reciprocal();
BigFraction errorResult = fractionA.multiply(fractionB);
System.out.println("Error Result: " + errorResult);
BigFraction correctResult = new BigFraction(fractionA.getNumerator().multiply(fractionB.getNumerator()), fractionA.getDenominator().multiply(fractionB.getDenominator()));
System.out.println("Correct Result: " + correctResult);