#ifndef _THMATH_H
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#define _THMATH_H
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#include <stdlib.h>
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#ifdef _MSC_VER
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#define _USE_MATH_DEFINES
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#endif
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#include <math.h>
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#ifndef M_PIf
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#define M_PIf 3.1415926535f
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#endif // M_PIf
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static inline double TH_sigmoid(double value) {
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return 1.0 / (1.0 + exp(-value));
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}
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static inline double TH_frac(double x) {
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return x - trunc(x);
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}
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static inline double TH_rsqrt(double x) {
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return 1.0 / sqrt(x);
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}
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static inline float TH_sigmoidf(float value) {
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return 1.0f / (1.0f + expf(-value));
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}
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static inline float TH_fracf(float x) {
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return x - truncf(x);
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}
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static inline float TH_rsqrtf(float x) {
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return 1.0f / sqrtf(x);
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}
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#endif // _THMATH_H
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