///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
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/// @ref gtx_matrix_query
/// @file glm/gtx/matrix_query.hpp
/// @date 2007-03-05 / 2011-08-28
/// @author Christophe Riccio
///
/// @see core (dependence)
/// @see gtx_vector_query (dependence)
///
/// @defgroup gtx_matrix_query GLM_GTX_matrix_query
/// @ingroup gtx
///
/// @brief Query to evaluate matrix properties
///
/// <glm/gtx/matrix_query.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#pragma once

// Dependency:
#include "../glm.hpp"
#include "../gtx/vector_query.hpp"
#include <limits>

#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
#       pragma message("GLM: GLM_GTX_matrix_query extension included")
#endif

namespace glm
{
        /// @addtogroup gtx_matrix_query
        /// @{

        /// Return whether a matrix a null matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P>
        GLM_FUNC_DECL bool isNull(tmat2x2<T, P> const & m, T const & epsilon);
               
        /// Return whether a matrix a null matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P>
        GLM_FUNC_DECL bool isNull(tmat3x3<T, P> const & m, T const & epsilon);
               
        /// Return whether a matrix is a null matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P>
        GLM_FUNC_DECL bool isNull(tmat4x4<T, P> const & m, T const & epsilon);
                       
        /// Return whether a matrix is an identity matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P, template <typename, precision> class matType>
        GLM_FUNC_DECL bool isIdentity(matType<T, P> const & m, T const & epsilon);

        /// Return whether a matrix is a normalized matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P>
        GLM_FUNC_DECL bool isNormalized(tmat2x2<T, P> const & m, T const & epsilon);

        /// Return whether a matrix is a normalized matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P>
        GLM_FUNC_DECL bool isNormalized(tmat3x3<T, P> const & m, T const & epsilon);

        /// Return whether a matrix is a normalized matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P>
        GLM_FUNC_DECL bool isNormalized(tmat4x4<T, P> const & m, T const & epsilon);

        /// Return whether a matrix is an orthonormalized matrix.
        /// From GLM_GTX_matrix_query extension.
        template<typename T, precision P, template <typename, precision> class matType>
        GLM_FUNC_DECL bool isOrthogonal(matType<T, P> const & m, T const & epsilon);

        /// @}
}//namespace glm

#include "matrix_query.inl"