116 lines
2.4 KiB
C++
116 lines
2.4 KiB
C++
namespace glm
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{
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template<typename T>
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GLM_FUNC_QUALIFIER T min(T a, T b, T c)
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{
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return glm::min(glm::min(a, b), c);
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}
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template<typename T>
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GLM_FUNC_QUALIFIER T min(T a, T b, T c, T d)
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{
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return glm::min(glm::min(a, b), glm::min(c, d));
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}
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template<typename T>
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GLM_FUNC_QUALIFIER T max(T a, T b, T c)
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{
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return glm::max(glm::max(a, b), c);
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}
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template<typename T>
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GLM_FUNC_QUALIFIER T max(T a, T b, T c, T d)
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{
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return glm::max(glm::max(a, b), glm::max(c, d));
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}
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# if GLM_HAS_CXX11_STL
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using std::fmin;
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# else
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template<typename T>
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GLM_FUNC_QUALIFIER T fmin(T a, T b)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmin' only accept floating-point input");
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if (isnan(a))
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return b;
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return min(a, b);
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}
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# endif
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template<typename T>
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GLM_FUNC_QUALIFIER T fmin(T a, T b, T c)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmin' only accept floating-point input");
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if (isnan(a))
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return fmin(b, c);
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if (isnan(b))
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return fmin(a, c);
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if (isnan(c))
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return min(a, b);
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return min(a, b, c);
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}
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template<typename T>
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GLM_FUNC_QUALIFIER T fmin(T a, T b, T c, T d)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmin' only accept floating-point input");
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if (isnan(a))
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return fmin(b, c, d);
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if (isnan(b))
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return min(a, fmin(c, d));
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if (isnan(c))
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return fmin(min(a, b), d);
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if (isnan(d))
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return min(a, b, c);
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return min(a, b, c, d);
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}
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# if GLM_HAS_CXX11_STL
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using std::fmax;
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# else
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template<typename T>
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GLM_FUNC_QUALIFIER T fmax(T a, T b)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmax' only accept floating-point input");
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if (isnan(a))
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return b;
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return max(a, b);
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}
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# endif
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template<typename T>
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GLM_FUNC_QUALIFIER T fmax(T a, T b, T c)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmax' only accept floating-point input");
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if (isnan(a))
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return fmax(b, c);
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if (isnan(b))
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return fmax(a, c);
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if (isnan(c))
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return max(a, b);
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return max(a, b, c);
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}
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template<typename T>
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GLM_FUNC_QUALIFIER T fmax(T a, T b, T c, T d)
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{
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GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmax' only accept floating-point input");
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if (isnan(a))
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return fmax(b, c, d);
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if (isnan(b))
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return max(a, fmax(c, d));
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if (isnan(c))
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return fmax(max(a, b), d);
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if (isnan(d))
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return max(a, b, c);
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return max(a, b, c, d);
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}
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}//namespace glm
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