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long value = /* initialize */; int i = (int) (value % 0x1000000000x100000000L); // 2^32 |
The range-checking is unnecessary because the truncation that is normally implicit in a narrowing conversion is made explicit. The compiler will optimize the operation away, and for that reason, no performance penalty is incurred.
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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 | |||
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 | |||
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="0c9b3e0133cd131d-be6fd236-4b4c477c-942b8679-29dbf86fbd062959b2b857e8"><ac:plain-text-body><![CDATA[ | [ISO/IEC TR 24772:2010 | http://www.aitcnet.org/isai/] | Numeric Conversion Errors [FLC] | ]]></ac:plain-text-body></ac:structured-macro> |
CWE-681. Incorrect conversion between numeric types | ||||
| CWE-197. Numeric truncation error |
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