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Integer type ranges are defined by the JLS, §4.2.1, "Integral Types and Values", [JLS 2005] and are also described in rule "NUM16NUM00-J. Detect or prevent integer overflow."

The table below presents the rules for narrowing primitive conversions of integer types. In the table, for an integer type T, n represents the number of bits used to represent the resulting type T (precision).

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C Secure Coding Standard

"INT31-C. Ensure that integer conversions do not result in lost or misinterpreted data"

 

"FLP34-C. Ensure that floating point conversions are within range of the new type"

C++ Secure Coding Standard

"INT31-CPP. Ensure that integer conversions do not result in lost or misinterpreted data"

 

"FLP34-CPP. Ensure that floating point conversions are within range of the new type"

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[ISO/IEC TR 24772:2010

http://www.aitcnet.org/isai/]

"Numeric Conversion Errors [FLC]"

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MITRE CWE

CWE ID 681, "Incorrect Conversion between Numeric Types"

 

CWE ID 197, "Numeric Truncation Error"

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