ceph/src/boost/libs/spirit/test/karma/int3.cpp

   1 //  Copyright (c) 2001-2011 Hartmut Kaiser
   2 //
   3 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <boost/spirit/include/karma_int.hpp>
   7
   8 #include <boost/mpl/vector.hpp>
   9 #include <boost/mpl/for_each.hpp>
  10 #include <boost/mpl/if.hpp>
  11 #include <boost/mpl/bool.hpp>
  12
  13 #include <boost/phoenix/core.hpp>
  14 #include <boost/phoenix/operator.hpp>
  15
  16 #include <boost/spirit/include/karma_char.hpp>
  17 #include <boost/spirit/include/karma_numeric.hpp>
  18 #include <boost/spirit/include/karma_directive.hpp>
  19 #include <boost/spirit/include/karma_action.hpp>
  20 #include <boost/spirit/include/karma_phoenix_attributes.hpp>
  21
  22 #include <boost/limits.hpp>
  23 #include "test.hpp"
  24 #include <sstream>
  25
  26 using namespace spirit_test;
  27
  28 template <typename T>
  29 std::string to_string(T v)
  30 {
  31     std::stringstream ss;
  32     ss << v;
  33     return ss.str();
  34 }
  35
  36 ///////////////////////////////////////////////////////////////////////////////
  37 struct test_minmax
  38 {
  39     template <typename T>
  40     void operator()(T) const
  41     {
  42         using namespace boost::spirit;
  43         using namespace boost::phoenix;
  44
  45         T minval = (std::numeric_limits<T>::min)();
  46         T maxval = (std::numeric_limits<T>::max)();
  47
  48         std::string expected_minval = to_string(minval);
  49         std::string expected_maxval = to_string(maxval);
  50
  51         // create a correct generator type from the given integer type
  52         typedef typename
  53             boost::mpl::if_<
  54                 boost::mpl::bool_<std::numeric_limits<T>::is_signed>,
  55                 karma::int_generator<T>,
  56                 karma::uint_generator<T>
  57             >::type
  58         int_generator_type;
  59
  60         int_generator_type const gen = int_generator_type();
  61
  62         BOOST_TEST(test(expected_maxval, gen, maxval));
  63         BOOST_TEST(test(expected_minval, gen, minval));
  64         BOOST_TEST(test(expected_maxval, gen(maxval)));
  65         BOOST_TEST(test(expected_minval, gen(minval)));
  66         BOOST_TEST(test(expected_maxval, gen(maxval), maxval));
  67         BOOST_TEST(test(expected_minval, gen(minval), minval));
  68         BOOST_TEST(!test("", gen(maxval), maxval-1));
  69         BOOST_TEST(!test("", gen(minval), minval+1));
  70         BOOST_TEST(test(expected_maxval, lit(maxval)));
  71         BOOST_TEST(test(expected_minval, lit(minval)));
  72
  73         BOOST_TEST(test_delimited(expected_maxval + " ", gen, maxval, char(' ')));
  74         BOOST_TEST(test_delimited(expected_minval + " ", gen, minval, char(' ')));
  75         BOOST_TEST(test_delimited(expected_maxval + " ", gen(maxval), char(' ')));
  76         BOOST_TEST(test_delimited(expected_minval + " ", gen(minval), char(' ')));
  77         BOOST_TEST(test_delimited(expected_maxval + " ", gen(maxval), maxval, char(' ')));
  78         BOOST_TEST(test_delimited(expected_minval + " ", gen(minval), minval, char(' ')));
  79         BOOST_TEST(!test_delimited("", gen(maxval), maxval-1, char(' ')));
  80         BOOST_TEST(!test_delimited("", gen(minval), minval+1, char(' ')));
  81         BOOST_TEST(test_delimited(expected_maxval + " ", lit(maxval), char(' ')));
  82         BOOST_TEST(test_delimited(expected_minval + " ", lit(minval), char(' ')));
  83
  84     // action tests
  85         BOOST_TEST(test(expected_maxval, gen[_1 = val(maxval)]));
  86         BOOST_TEST(test(expected_minval, gen[_1 = val(minval)]));
  87
  88     // optional tests
  89         boost::optional<T> optmin, optmax(maxval);
  90
  91         BOOST_TEST(!test("", gen, optmin));
  92         BOOST_TEST(!test("", gen(minval), optmin));
  93
  94         optmin = minval;
  95         BOOST_TEST(test(expected_minval, gen, optmin));
  96         BOOST_TEST(test(expected_maxval, gen, optmax));
  97         BOOST_TEST(test(expected_minval, gen(minval), optmin));
  98         BOOST_TEST(test(expected_maxval, gen(maxval), optmax));
  99
 100     // Phoenix expression tests (only supported while including
 101     // karma_phoenix_attributes.hpp
 102         namespace phoenix = boost::phoenix;
 103
 104         BOOST_TEST(test("1", gen, phoenix::val(1)));
 105
 106         T val = 1;
 107         BOOST_TEST(test("1", gen, phoenix::ref(val)));
 108         BOOST_TEST(test("2", gen, ++phoenix::ref(val)));
 109     }
 110 };
 111
 112 ///////////////////////////////////////////////////////////////////////////////
 113 int
 114 main()
 115 {
 116     using namespace boost::spirit;
 117
 118 // test boundary values
 119     typedef boost::mpl::vector<
 120 #ifdef BOOST_HAS_LONG_LONG
 121         boost::long_long_type, boost::ulong_long_type,
 122 #endif
 123         short, unsigned short,
 124         int, unsigned int,
 125         long, unsigned long
 126     > integer_types;
 127     boost::mpl::for_each<integer_types>(test_minmax());
 128
 129     return boost::report_errors();
 130 }
 131