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#ifndef __LIBJIN_UTILS_MATH_H
#define __LIBJIN_UTILS_MATH_H

#include "constant.h"
#include "matrix.h"
#include "quad.h"

namespace jin
{
	namespace math
	{

	#ifdef min
	#   undef min 
	#endif // min
	#ifdef max
	#   undef max
	#endif // max

		template<typename T>
		inline T min(T a, T b)
		{
			return a < b ? a : b;
		}

		template<typename T>
		inline T max(T a, T b)
		{
			return a > b ? a : b;
		}

		template<typename T>
		inline T clamp(T a, T mi, T ma)
		{
			return min<T>(max<T>(a, mi), ma);
		}

		template<typename T>
		inline bool within(T a, T mi, T ma)
		{
			return a >= mi && a <= ma;
		}

		template<typename T>
		inline bool without(T a, T mi, T ma)
		{
			return a < mi || a > ma;
		}

		template<typename T>
		inline T abs(T a)
		{
			return a > 0 ? a : -a;
		}

		template<typename T>
		inline T lowerBound(T a, T lower)
		{
			return a < lower ? lower : a;
		}

		template<typename T>
		inline T upperBound(T a, T upper)
		{
			return a > upper ? upper : a;
		}
    
		template<typename T>
		inline T lerp(T a, T b, float t)
		{
			return a + t * (b - a);
		}

	} // namespace math
} // namespace jin

#endif