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annotate constant-q-cpp/src/dsp/nan-inf.h @ 366:5d0a2ebb4d17

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Bring dependent libraries in to repo
author Chris Cannam
date Fri, 24 Jun 2016 14:47:45 +0100
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Chris@366 1
Chris@366 2 #ifndef NAN_INF_H
Chris@366 3 #define NAN_INF_H
Chris@366 4
Chris@366 5 #define ISNAN(x) (sizeof(x) == sizeof(double) ? ISNANd(x) : ISNANf(x))
Chris@366 6 static inline int ISNANf(float x) { return x != x; }
Chris@366 7 static inline int ISNANd(double x) { return x != x; }
Chris@366 8
Chris@366 9 #define ISINF(x) (sizeof(x) == sizeof(double) ? ISINFd(x) : ISINFf(x))
Chris@366 10 static inline int ISINFf(float x) { return !ISNANf(x) && ISNANf(x - x); }
Chris@366 11 static inline int ISINFd(double x) { return !ISNANd(x) && ISNANd(x - x); }
Chris@366 12
Chris@366 13 #endif