CrystalSpace

Public API Reference

csqsqrt.h File Reference

Fast computation of sqrt(x) and 1/sqrt(x). More...

#include "cssysdef.h"
#include <math.h>

Go to the source code of this file.

Functions

static float csQisqrt (float x)
 This routine is basically equivalent to csQsqrt() except that it returns 1/sqrt(x) rather than the proper square root.
static float csQsqrt (float x)
 This routine computes sqrt(x) very quickly on Intel and PowerPC platforms.

Detailed Description

Fast computation of sqrt(x) and 1/sqrt(x).

Define CS_NO_QSQRT if you experience mysterious problems with CS which you think are related to the specially optimized csQsqrt() not behaving properly.

Definition in file csqsqrt.h.


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