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view maths/nan-inf.h @ 174:fc05ce770413

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Comment fix
author Chris Cannam
date Mon, 12 May 2014 17:56:48 +0100
parents c313a173f4a9
children 701233f8ed41
line wrap: on
line source

#ifndef NAN_INF_H
#define NAN_INF_H

#define ISNAN(x) (sizeof(x) == sizeof(double) ? ISNANd(x) : ISNANf(x))
static inline int ISNANf(float x) { return x != x; }
static inline int ISNANd(double x) { return x != x; }
          
#define ISINF(x) (sizeof(x) == sizeof(double) ? ISINFd(x) : ISINFf(x))
static inline int ISINFf(float x) { return !ISNANf(x) && ISNANf(x - x); }
static inline int ISINFd(double x) { return !ISNANd(x) && ISNANd(x - x); }

#endif