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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="db5ffa4a4a586562-76710f9f-45bc495d-85d7b510-1c276c8af910852124405fdf"><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="cb0c4b03b2b7f02b-5e104eb0-415e4664-8dacb87b-4846533329a6da4a8e09671e"><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="8347ce88abba5dc4-93e4914e-403e45ac-979cbb89-9889ec85d6e57457103a4b2e"><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="d26d951d0e4dc9ce-7792d38a-48a344a4-a71ca548-e40014956d4c666a3eaed5a1"><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="611feadc0bf3ef34-2da0eb01-41154724-9d019fbd-cfbc82eb95cbacdefbdb33cb"><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="b79e147bd4780a68-83700452-49db4c3b-8356a2bf-a579558444436cd30319f64c"><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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