Mercurial > hg > qm-dsp

view maths/nan-inf.h @ 337:df6ee7f3e3db

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add first phase vocoder unit test (failing)
author Chris Cannam <c.cannam@qmul.ac.uk>
date Tue, 01 Oct 2013 15:35:55 +0100
parents f51af910550f
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