ceph/src/boost/libs/beast/subtree/unit_test/include/boost/beast/unit_test/amount.hpp

   1 //
   2 // Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // Official repository: https://github.com/boostorg/beast
   8 //
   9
  10 #ifndef BOOST_BEAST_UNIT_TEST_AMOUNT_HPP
  11 #define BOOST_BEAST_UNIT_TEST_AMOUNT_HPP
  12
  13 #include <cstddef>
  14 #include <ostream>
  15 #include <string>
  16
  17 namespace boost {
  18 namespace beast {
  19 namespace unit_test {
  20
  21 /** Utility for producing nicely composed output of amounts with units. */
  22 class amount
  23 {
  24 private:
  25     std::size_t n_;
  26     std::string const& what_;
  27
  28 public:
  29     amount(amount const&) = default;
  30     amount& operator=(amount const&) = delete;
  31
  32     template<class = void>
  33     amount(std::size_t n, std::string const& what);
  34
  35     friend
  36     std::ostream&
  37     operator<<(std::ostream& s, amount const& t);
  38 };
  39
  40 template<class>
  41 amount::amount(std::size_t n, std::string const& what)
  42     : n_(n)
  43     , what_(what)
  44 {
  45 }
  46
  47 inline
  48 std::ostream&
  49 operator<<(std::ostream& s, amount const& t)
  50 {
  51     s << t.n_ << " " << t.what_ <<((t.n_ != 1) ? "s" : "");
  52     return s;
  53 }
  54
  55 } // unit_test
  56 } // beast
  57 } // boost
  58
  59 #endif