text: /// @ref gtx_matrix_query
  /// @file glm/gtx/matrix_query.hpp
  ///
  /// @see core (dependence)
  /// @see gtx_vector_query (dependence)
  ///
  /// @defgroup gtx_matrix_query GLM_GTX_matrix_query
  /// @ingroup gtx
  ///
  /// Include <glm/gtx/matrix_query.hpp> to use the features of this extension.
  ///
  /// Query to evaluate matrix properties
  
  #pragma once
  
  // Dependency:
  #include "../glm.hpp"
  #include "../gtx/vector_query.hpp"
  #include <limits>
  
  #if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
  #	ifndef GLM_ENABLE_EXPERIMENTAL
  #		pragma message("GLM: GLM_GTX_matrix_query is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it.")
  #	elif
  #		pragma message("GLM: GLM_GTX_matrix_query extension included")
  #	endif
  #endif
  
  namespace glm
  {
  	/// @addtogroup gtx_matrix_query
  	/// @{
  
  	/// Return whether a matrix a null matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<typename T, qualifier Q>
  	GLM_FUNC_DECL bool isNull(mat<2, 2, T, Q> const& m, T const& epsilon);
  
  	/// Return whether a matrix a null matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<typename T, qualifier Q>
  	GLM_FUNC_DECL bool isNull(mat<3, 3, T, Q> const& m, T const& epsilon);
  
  	/// Return whether a matrix is a null matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<typename T, qualifier Q>
  	GLM_FUNC_DECL bool isNull(mat<4, 4, T, Q> const& m, T const& epsilon);
  
  	/// Return whether a matrix is an identity matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<length_t C, length_t R, typename T, qualifier Q, template<length_t, length_t, typename, qualifier> class matType>
  	GLM_FUNC_DECL bool isIdentity(matType<C, R, T, Q> const& m, T const& epsilon);
  
  	/// Return whether a matrix is a normalized matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<typename T, qualifier Q>
  	GLM_FUNC_DECL bool isNormalized(mat<2, 2, T, Q> const& m, T const& epsilon);
  
  	/// Return whether a matrix is a normalized matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<typename T, qualifier Q>
  	GLM_FUNC_DECL bool isNormalized(mat<3, 3, T, Q> const& m, T const& epsilon);
  
  	/// Return whether a matrix is a normalized matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<typename T, qualifier Q>
  	GLM_FUNC_DECL bool isNormalized(mat<4, 4, T, Q> const& m, T const& epsilon);
  
  	/// Return whether a matrix is an orthonormalized matrix.
  	/// From GLM_GTX_matrix_query extension.
  	template<length_t C, length_t R, typename T, qualifier Q, template<length_t, length_t, typename, qualifier> class matType>
  	GLM_FUNC_DECL bool isOrthogonal(matType<C, R, T, Q> const& m, T const& epsilon);
  
  	/// @}
  }//namespace glm
  
  #include "matrix_query.inl"
  