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25 lines
661 B
25 lines
661 B
//
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// Created by 14727 on 2022/12/9.
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//
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#ifndef NURBSEVALUATOR_DEVICE_UTILS_CUH
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#define NURBSEVALUATOR_DEVICE_UTILS_CUH
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#define D_DBL_MAX 1.7976931348623158e+308
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#define D_FLT_MAX 3.402823466e+38F
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__device__ void d_safeFree(float * &p);
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/**
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* device中判断两个浮点数是否相等。与CPU中一样，GPU中的浮点数也存在很小的误差，直接使用==判断往往容易将相等误判为不等
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* @return true：相等
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*/
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__device__ bool d_floatEqual(float a, float b);
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/**
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* 正则归一化，一般用于方向向量的归一化
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*/
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__device__ void normalization(float &a, float &b, float &c);
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#endif //NURBSEVALUATOR_DEVICE_UTILS_CUH
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