1#ifndef BOOST_MATH_ALMOST_EQUAL_HPP 2#define BOOST_MATH_ALMOST_EQUAL_HPP 3 4// Copyright (c) 2006 Johan Rade 5 6// Distributed under the Boost Software License, Version 1.0. 7// (See accompanying file LICENSE_1_0.txt 8// or copy at http://www.boost.org/LICENSE_1_0.txt) 9 10#include <cmath> 11 12template<class ValType> 13bool almost_equal(ValType a, ValType b) 14{ 15 const ValType e = static_cast<ValType>(0.00001); 16 return (a - e * std::abs(a) <= b + e * std::abs(b)) 17 && (a + e * std::abs(a) >= b - e * std::abs(b)); 18} 19 20#endif 21