type_half.hpp

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#ifndef glm_core_type_half
#define glm_core_type_half

#include <cstdlib>

namespace glm{
namespace detail
{
        typedef short hdata;

        float toFloat32(hdata value);
        hdata toFloat16(float const & value);

        class half
        {
        public: 
                // Constructors
                GLM_FUNC_DECL half();
                GLM_FUNC_DECL half(half const & s);
                        
                template <typename U>
                GLM_FUNC_DECL explicit half(U const & s);

                // Cast
                template <typename U>
                GLM_FUNC_DECL operator U() const;

                // Unary updatable operators
                GLM_FUNC_DECL half& operator= (half const & s);
                GLM_FUNC_DECL half& operator+=(half const & s);
                GLM_FUNC_DECL half& operator-=(half const & s);
                GLM_FUNC_DECL half& operator*=(half const & s);
                GLM_FUNC_DECL half& operator/=(half const & s);
                GLM_FUNC_DECL half& operator++();
                GLM_FUNC_DECL half& operator--();
        
                GLM_FUNC_DECL float toFloat() const{return toFloat32(data);}

                GLM_FUNC_DECL hdata _data() const{return data;}

        private:
                hdata data;
        };

        half operator+ (half const & s1, half const & s2);

        half operator- (half const & s1, half const & s2);

        half operator* (half const & s1, half const & s2);

        half operator/ (half const & s1, half const & s2);

        // Unary constant operators
        half operator- (half const & s);

        half operator-- (half const & s, int);

        half operator++ (half const & s, int);

        bool operator==(
                detail::half const & x, 
                detail::half const & y);

        bool operator!=(
                detail::half const & x, 
                detail::half const & y);

        bool operator<(
                detail::half const & x, 
                detail::half const & y);

        bool operator<=(
                detail::half const & x, 
                detail::half const & y);

        bool operator>(
                detail::half const & x, 
                detail::half const & y);

        bool operator>=(
                detail::half const & x, 
                detail::half const & y);

}//namespace detail
}//namespace glm

#include "type_half.inl"

#endif//glm_core_type_half