Home/CWE/Floating Point Comparison with Incorrect Operator
Weakness

Floating Point Comparison with Incorrect Operator

CWE-1077 · Variant · Incomplete

The code performs a comparison such as an equality test between two float (floating point) values, but it uses comparison operators that do not account for the possibility of loss of precision.

Extended description

Numeric calculation using floating point values can generate imprecise results because of rounding errors. As a result, two different calculations might generate numbers that are mathematically equal, but have slightly different bit representations that do not translate to the same mathematically-equal values. As a result, an equality test or other comparison might produce unexpected results.

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