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view maths/nan-inf.h @ 107:34334b528d6d

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Added tag mirex2013 for changeset f976d7609700
author Chris Cannam
date Thu, 05 Sep 2013 13:21:15 +0100
parents c313a173f4a9
children 701233f8ed41
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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