18 #include "../gtx/vector_query.hpp"    21 #ifndef GLM_ENABLE_EXPERIMENTAL    22 #   error "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."    25 #if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)    26 #   pragma message("GLM: GLM_GTX_matrix_query extension included")    36     template<
typename T, qualifier Q>
    37     GLM_FUNC_DECL 
bool isNull(mat<2, 2, T, Q> 
const& m, T 
const& 
epsilon);
    41     template<
typename T, qualifier Q>
    42     GLM_FUNC_DECL 
bool isNull(mat<3, 3, T, Q> 
const& m, T 
const& 
epsilon);
    46     template<
typename T, qualifier Q>
    47     GLM_FUNC_DECL 
bool isNull(mat<4, 4, T, Q> 
const& m, T 
const& 
epsilon);
    51     template<length_t C, length_t R, 
typename T, qualifier Q, 
template<length_t, length_t, 
typename, qualifier> 
class matType>
    56     template<
typename T, qualifier Q>
    61     template<
typename T, qualifier Q>
    66     template<
typename T, qualifier Q>
    71     template<length_t C, length_t R, 
typename T, qualifier Q, 
template<length_t, length_t, 
typename, qualifier> 
class matType>
    77 #include "matrix_query.inl" GLM_FUNC_DECL bool isNull(mat< 4, 4, T, Q > const &m, T const &epsilon)
Return whether a matrix is a null matrix. 
GLM_FUNC_DECL GLM_CONSTEXPR genType epsilon()
Return the epsilon constant for floating point types. 
GLM_FUNC_DECL bool isNormalized(mat< 4, 4, T, Q > const &m, T const &epsilon)
Return whether a matrix is a normalized matrix. 
GLM_FUNC_DECL bool isOrthogonal(matType< C, R, T, Q > const &m, T const &epsilon)
Return whether a matrix is an orthonormalized matrix. 
GLM_FUNC_DECL bool isIdentity(matType< C, R, T, Q > const &m, T const &epsilon)
Return whether a matrix is an identity matrix.