anonymous_namespace{xy_vertex.cpp} Namespace Reference

Functions
template<typename T >
std::enable_if<!std::numeric_limits< T >::is_integer, bool >::type	almost_equal (T x, T y, int ulp)

Function Documentation

almost_equal()

template<typename T >

std::enable_if<!std::numeric_limits<T>::is_integer, bool>::type anonymous_namespace{xy_vertex.cpp}::almost_equal	(	T	x,
		T	y,
		int	ulp
	)

Definition at line 38 of file xy_vertex.cpp.

                                    {
    // the machine epsilon has to be scaled to the magnitude of the values used
    // and multiplied by the desired precision in ULPs (units in the last place)
    return std::abs(x-y) <= std::numeric_limits<T>::epsilon() * std::abs(x+y) * ulp
        // unless the result is subnormal
        || std::abs(x-y) < std::numeric_limits<T>::min();
}

Referenced by pgrouting::XY_vertex::operator==().