qm-dsp 1.8
nan-inf.h
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1
2#ifndef NAN_INF_H
3#define NAN_INF_H
4
5#define ISNAN(x) (sizeof(x) == sizeof(double) ? ISNANd(x) : ISNANf(x))
6static inline int ISNANf(float x) { return x != x; }
7static inline int ISNANd(double x) { return x != x; }
8
9#define ISINF(x) (sizeof(x) == sizeof(double) ? ISINFd(x) : ISINFf(x))
10static inline int ISINFf(float x) { return !ISNANf(x) && ISNANf(x - x); }
11static inline int ISINFd(double x) { return !ISNANd(x) && ISNANd(x - x); }
12
13#endif
static int ISINFf(float x)
Definition nan-inf.h:10
static int ISINFd(double x)
Definition nan-inf.h:11
static int ISNANd(double x)
Definition nan-inf.h:7
static int ISNANf(float x)
Definition nan-inf.h:6