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// Macro for killing denormalled numbers
//
// Written by Jezar at Dreampoint, June 2000
// http://www.dreampoint.co.uk
// Based on IS_DENORMAL macro by Jon Watte
// This code is public domain
#ifndef _denormals_
#define _denormals_
// this does not work with at least gcc3.3 and -O2:
// #define undenormalise(sample) if(((*(unsigned int*)&sample)&0x7f800000)==0) sample=0.0f
//
// from Laurent de Soras Paper: Denormal numbers in floating point
// signal processing applications
// (ws)
#if 0
#define undenormalise(sample) \
{ \
float anti_denormal = 1e-18; \
sample += anti_denormal; \
sample -= anti_denormal; \
}
#endif
// from beast-0.7.2 (Tim Janik/Stefan Westerfeld):
#define undenormalise(sample) \
do { \
volatile float __forced_float = 1e-29 + sample; \
sample = __forced_float - 1e-29; \
} while (0)
#endif//_denormals_
//ends
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