Class WithinUlpsMatcher

tests/catch.hpp:3035–3043

        };

        struct WithinUlpsMatcher : MatcherBase<double> {
            WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType);
            bool match(double const& matchee) const override;
            std::string describe() const override;
        private:
            double m_target;
            int m_ulps;
            FloatingPointKind m_type;
        };

    } // namespace Floating