ceph/src/boost/libs/math/test/almost_equal.ipp

   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
  12 template<class ValType>
  13 bool 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