///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
/// 
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
/// 
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// THE SOFTWARE.
///
/// @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.
///////////////////////////////////////////////////////////////////////////////////

#ifndef GLM_GTX_matrix_query
#define GLM_GTX_matrix_query GLM_VERSION

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

#if(defined(GLM_MESSAGES) && !defined(glm_ext))
#	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> 
	bool isNull(
		detail::tmat2x2<T> const & m, 
		T const & epsilon/* = std::numeric_limits<T>::epsilon()*/);
		
	/// Return whether a matrix a null matrix.
	/// From GLM_GTX_matrix_query extension.
	template<typename T> 
	bool isNull(
		detail::tmat3x3<T> const & m, 
		T const & epsilon/* = std::numeric_limits<T>::epsilon()*/);
		
	/// Return whether a matrix is a null matrix.
	/// From GLM_GTX_matrix_query extension.
	template<typename T> 
	bool isNull(
		detail::tmat4x4<T> const & m, 
		T const & epsilon/* = std::numeric_limits<T>::epsilon()*/);
			
	/// Return whether a matrix is an identity matrix. 
	/// From GLM_GTX_matrix_query extension.
	template<typename genType> 
	bool isIdentity(
		genType const & m, 
		typename genType::value_type const & epsilon/* = std::numeric_limits<typename genType::value_type>::epsilon()*/);

	/// Return whether a matrix is a normalized matrix.
	/// From GLM_GTX_matrix_query extension.
	template<typename valType>   
	bool isNormalized(
		detail::tmat2x2<valType> const & m, 
		valType const & epsilon/* = std::numeric_limits<valType>::epsilon()*/);

	/// Return whether a matrix is a normalized matrix.
	/// From GLM_GTX_matrix_query extension.
	template<typename valType>   
	bool isNormalized(
		detail::tmat3x3<valType> const & m, 
		valType const & epsilon/* = std::numeric_limits<valType>::epsilon()*/);

	/// Return whether a matrix is a normalized matrix.
	/// From GLM_GTX_matrix_query extension.
	template<typename valType>   
	bool isNormalized(
		detail::tmat4x4<valType> const & m, 
		valType const & epsilon/* = std::numeric_limits<valType>::epsilon()*/);

	/// Return whether a matrix is an orthonormalized matrix.
	/// From GLM_GTX_matrix_query extension.
	template<typename valType, template <typename> class matType> 
	bool isOrthogonal(
		matType<valType> const & m, 
		valType const & epsilon/* = std::numeric_limits<genType>::epsilon()*/);

	/// @}
}//namespace glm

#include "matrix_query.inl"

#endif//GLM_GTX_matrix_query
