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27 lines
658 B
C++
27 lines
658 B
C++
#pragma once
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/** exp10 from GNU libm fails to give precise result for integer arguments.
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* For example, exp10(3) gives 1000.0000000000001
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* despite the fact that 1000 is exactly representable in double and float.
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* Better to always use implementation from MUSL.
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*
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* Note: the function names are different to avoid confusion with symbols from the system libm.
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*/
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#include <stdlib.h> /// for __THROW
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// freebsd have no __THROW
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#if !defined(__THROW)
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#define __THROW
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#endif
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extern "C"
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{
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double preciseExp10(double x) __THROW;
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double precisePow10(double x) __THROW;
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float preciseExp10f(float x) __THROW;
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float precisePow10f(float x) __THROW;
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}
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