Literal decimal floating-point numbers can not always be represented precisely using the double primitive type , because the underlying representation of double is binary. This imprecision becomes apparent when a BigDecimal is constructed from a double.
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This noncompliant code example passes a double value to the BigDecimal constructor. Because the decimal literal 0.1 can not cannot be precisely represented by a double, precision of the BigDecimal is affected.
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Using the BigDecimal(double val) constructor with decimal floating-point literals can lead to loss of precision.
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Automated detection appears to be straightforward.
Related Vulnerabilities
Search for vulnerabilities resulting from the violation of this guideline on the CERT website.
Bibliography
[JLS 2005]
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NUM12-J. Do not use floating-point variables as loop counters 03. Numeric Types and Operations (NUM) NUM14-J. Do not rely on the default string representation of floating point values