[MATH-154] MathUtils addAndCheck and subAndCheck for long values

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1
• Fix Version/s: 1.2
• Assignee: Unassigned
• Reporter: Remi Arntzen
• Created: 31/Jul/06 03:57
• Updated: 23/Jul/12 23:24
• Resolved: 31/Oct/07 07:22

Description

public static long addAndCheck(long x, long y) {
BigInteger s = BigInteger.valueOf.add(BigInteger.valueOf;
if (s.bitLength() + 1 > Long.SIZE)

{ throw new ArithmeticException("overflow: add"); }

return s.longValue();
}

public static long subAndCheck(long x, long y) {
BigInteger s = BigInteger.valueOf.subtract(BigInteger.valueOf);
if (s.bitLength() + 1 > Long.SIZE)

{ throw new ArithmeticException("overflow: add"); }

return s.longValue();
}