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log10 generate wrong odd result when input is a float type number equal to pow(1.0, a negative even number) #44

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a5632645 opened this issue Jun 9, 2024 · 0 comments

a5632645 commented Jun 9, 2024 •

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When input is 1.0 to a negative even float type number, gcem::log10 return a wrong negative odd number.

Eg: gcem::log10(0.01) = -1.0f, should be -2.0f

Tested with 1e-2f to 1e-26f, only the 1e-22f is right.
In double and long double type, this also happens to 1e-12 and 1e-14.

Envrioment: MSVC 14.41.33901, C++20 std
GCE-Math version 1.18.0

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