doc/api/a00147_source.html

 #ifndef GLM_GTX_vector_query

 #define GLM_GTX_vector_query


 // Dependency:

 #include "../glm.hpp"

 #include <cfloat>

 #include <limits>


 #if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))

 #       pragma message("GLM: GLM_GTX_vector_query extension included")

 #endif


 namespace glm

 {


         template <typename genType>

         bool areCollinear(

                 genType const & v0,

                 genType const & v1,

                 typename genType::T const & epsilon);


         template <typename genType>

         bool areOrthogonal(

                 genType const & v0,

                 genType const & v1,

                 typename genType::T const & epsilon);


         template <typename genType, precision P, template <typename, precision> class vecType>

         bool isNormalized(

                 vecType<genType, P> const & v,

                 genType const & epsilon);


         template <typename T, precision P>

         bool isNull(

                 detail::tvec2<T, P> const & v,

                 T const & epsilon);


         template <typename T, precision P>

         bool isNull(

                 detail::tvec3<T, P> const & v,

                 T const & epsilon);


         template <typename T, precision P>

         bool isNull(

                 detail::tvec4<T, P> const & v,

                 T const & epsilon);


         template <typename genType>

         bool areOrthonormal(

                 genType const & v0,

                 genType const & v1,

                 typename genType::T const & epsilon);


 }// namespace glm


 #include "vector_query.inl"


 #endif//GLM_GTX_vector_query

glm::epsilon
GLM_FUNC_DECL genType epsilon()
Return the epsilon constant for floating point types.

glm::isNormalized
bool isNormalized(detail::tmat2x2< T, P > const &m, T const &epsilon)
Return whether a matrix is a normalized matrix.

glm::areOrthogonal
bool areOrthogonal(genType const &v0, genType const &v1, typename genType::T const &epsilon)
Check whether two vectors are orthogonals.

glm::isNull
bool isNull(detail::tmat2x2< T, P > const &m, T const &epsilon)
Return whether a matrix a null matrix.

glm::areCollinear
bool areCollinear(genType const &v0, genType const &v1, typename genType::T const &epsilon)
Check whether two vectors are collinears.

glm::areOrthonormal
bool areOrthonormal(genType const &v0, genType const &v1, typename genType::T const &epsilon)
Check whether two vectors are orthonormal.