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src/catch.hpp  view on Meta::CPAN

            approx.scale( m_scale );
            return approx;
        }

        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
        explicit Approx( T value ): Approx(static_cast<double>(value))
        {}

        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
        friend bool operator == ( const T& lhs, Approx const& rhs ) {
            // Thanks to Richard Harris for his help refining this formula
            auto lhs_v = double(lhs);
            bool relativeOK = std::fabs(lhs_v - rhs.m_value) < rhs.m_epsilon * (rhs.m_scale + (std::max)(std::fabs(lhs_v), std::fabs(rhs.m_value)));
            if (relativeOK) {
                return true;
            }
            return std::fabs(lhs_v - rhs.m_value) < rhs.m_margin;
        }

        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
        friend bool operator == ( Approx const& lhs, const T& rhs ) {

src/catch.hpp  view on Meta::CPAN

        Approx operator()( double value ) {
            Approx approx( value );
            approx.epsilon( m_epsilon );
            approx.margin( m_margin );
            approx.scale( m_scale );
            return approx;
        }

        friend bool operator == ( double lhs, Approx const& rhs ) {
            // Thanks to Richard Harris for his help refining this formula
            bool relativeOK = std::fabs( lhs - rhs.m_value ) < rhs.m_epsilon * (rhs.m_scale + (std::max)( std::fabs(lhs), std::fabs(rhs.m_value) ) );
            if (relativeOK) {
                return true;
            }
            return std::fabs(lhs - rhs.m_value) < rhs.m_margin;
        }

        friend bool operator == ( Approx const& lhs, double rhs ) {
            return operator==( rhs, lhs );
        }