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bgColor	#ccccff

public static long intRangeCheck(long value) throws ArithmeticOverflowArithmeticException {
  if ((value < Integer.MIN_VALUE) || (value > Integer.MAX_VALUE)) {
    throw new ArithmeticException("Integer overflow");
  }
  return value;
}

public static int multAccum(int oldAcc, int newVal, int scale) throws ArithmeticException {
  final long res =
    intRangeCheck(((long) oldAcc) + intRangeCheck((long) newVal * (long) scale));
  return (int) res; // safe down-cast
}

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The CERT C Secure Coding Standard	INT32-C. Ensure that operations on signed integers do not result in overflow
The CERT C++ Secure Coding Standard	INT32-CPP. Ensure that operations on signed integers do not result in overflow
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="b2e24813e1191b2b-4c489880-4e094642-a1a6b34a-f82f62581d374a6fdbbb2c38"><ac:plain-text-body><![CDATA[	[ISO/IEC TR 24772:2010	http://www.aitcnet.org/isai/]	"Wrap-around Error [XYY]"	]]></ac:plain-text-body></ac:structured-macro>
MITRE CWE	CWE-682, "Incorrect Calculation"
	CWE-190, "Integer Overflow or Wraparound"
	CWE-191, "Integer Underflow (Wrap or Wraparound)"

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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="b00b3c99c9163227-5253d103-449c4305-abf98977-5e43bd297f5e347df58cd44b"><ac:plain-text-body><![CDATA[	[[API 2006	AA. Bibliography#API 06]]	class [`AtomicInteger`	http://download.oracle.com/javase/6/docs/api/java/util/concurrent/atomic/AtomicInteger.html]	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="2709f1ea0bcf51ba-2c482652-4bf84fad-9756add1-8523f72c5a611f9e6f7949fd"><ac:plain-text-body><![CDATA[	[[Bloch 2005	AA. Bibliography#Bloch 05]]	Puzzle 27: Shifty i's	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="4ac835461421ebab-29589a7f-4fa945b5-be018931-33b7c3cff37b67a044c94377"><ac:plain-text-body><![CDATA[	[[JLS 2005	AA. Bibliography#JLS 05]]	[§4.2.2, "Integer Operations"	http://java.sun.com/docs/books/jls/third_edition/html/typesValues.html#4.2.2]	]]></ac:plain-text-body></ac:structured-macro>
	§15.22, "Bitwise and Logical Operators"
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="d5b40de16826284a-e40ea5d1-437d4f34-ad03940c-58b0f3aa1fa67facbb3e559c"><ac:plain-text-body><![CDATA[	[[Seacord 2005	AA. Bibliography#Seacord 05]]	Chapter 5. Integers	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="5dd2bb298600b08f-ec8f45e6-482d4365-a604b641-15e73853c5138b534e4bc2d8"><ac:plain-text-body><![CDATA[	[[Tutorials 2008	AA. Bibliography#Tutorials 08]]	Primitive Data Types	]]></ac:plain-text-body></ac:structured-macro>

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