cbrt.h File Reference

#include <config.h>
#include <math.h>
#include "inline.h"

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Functions
	__attribute__ ((always_inline)) INLINE static float icbrtf(float x_in)
	Compute the inverse cube root of a single-precision floating-point number.

Function Documentation

__attribute__()

__attribute__

(

(always_inline)

)

Compute the inverse cube root of a single-precision floating-point number.

This function does not care about non-finite inputs.

Warning

This function is faster than both gcc and Intel's cbrtf() functions on x86 systems. However, Other compilers or other architectures may have faster implementations of the standard function cbrtf() that will potentionally outperform this function.

Parameters

x_in	The input value.

Returns

The inverse cubic root of x_in (i.e. \(x_{in}^{-1/3} \)) .

Definition at line 47 of file cbrt.h.