MathHelper.h

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#ifndef __GfxTL_MATHHELPER_HEADER__
#define __GfxTL_MATHHELPER_HEADER__
#ifndef _USE_MATH_DEFINES
#define _USE_MATH_DEFINES
#endif
#include <cmath>
 
namespace GfxTL
{
    template< class ScalarT >
    class Math
    {
    public:
        static inline ScalarT Abs(ScalarT s)
        {
            if (s < 0)
            {
                return -s;
            }
            return s;
        }
 
        static inline ScalarT Sign(ScalarT s)
        {
            if (s < 0)
            {
                return -1;
            }
            else if (s > 0)
            {
                return 1;
            }
            return 0;
        }
 
        static inline ScalarT Clamp(ScalarT s, ScalarT bottom, ScalarT top)
        {
            if (s < bottom)
            {
                return bottom;
            }
            if (s > top)
            {
                return top;
            }
            return s;
        }
 
        static inline ScalarT Max(ScalarT a, ScalarT b)
        {
            if (a > b)
            {
                return a;
            }
            return b;
        }
 
        static inline ScalarT Min(ScalarT a, ScalarT b)
        {
            if (a < b)
            {
                return a;
            }
            return b;
        }
    };
 
    /*template< >
    class Math< float >
    {
        public:
            static inline float Abs(float s)
            {
                // *reinterpret_cast< unsigned int * >(&s) &= 0x7FFFFFFFu;
                if(s < 0) return -s;
                return s;
            }
 
            static inline float Sign(float s)
            {
                if(s < 0)
                    return -1;
                else
                    return 1;
            }
 
            static inline float Clamp(float s, float bottom, float top)
            {
                if(s < bottom)
                    return bottom;
                if(s > top)
                    return top;
                return s;
            }
 
            static inline float Max(float a, float b)
            {
                if(a > b)
                    return a;
                return b;
            }
 
            static inline float Min(float a, float b)
            {
                if(a < b)
                    return a;
                return b;
            }
    };*/
};
 
#endif