ceph/src/boost/boost/test/utils/basic_cstring/compare.hpp

   1 //  (C) Copyright Gennadiy Rozental 2001.
   2 //  Distributed under the Boost Software License, Version 1.0.
   3 //  (See accompanying file LICENSE_1_0.txt or copy at
   4 //  http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //  See http://www.boost.org/libs/test for the library home page.
   7 //
   8 //  File        : $RCSfile$
   9 //
  10 //  Version     : $Revision$
  11 //
  12 //  Description : class basic_cstring comparisons implementation
  13 // ***************************************************************************
  14
  15 #ifndef BOOST_TEST_UTILS_BASIC_CSTRING_COMPARE_HPP
  16 #define BOOST_TEST_UTILS_BASIC_CSTRING_COMPARE_HPP
  17
  18 // Boost.Test
  19 #include <boost/test/utils/basic_cstring/basic_cstring.hpp>
  20
  21 // STL
  22 #include <functional>
  23 #include <cctype>
  24
  25 #include <boost/test/detail/suppress_warnings.hpp>
  26
  27 //____________________________________________________________________________//
  28
  29 # if defined(BOOST_NO_STDC_NAMESPACE) && !BOOST_WORKAROUND(BOOST_BORLANDC, <= 0x570)
  30 namespace std { using ::toupper; }
  31 # endif
  32
  33 namespace boost {
  34
  35 namespace unit_test {
  36
  37 // ************************************************************************** //
  38 // **************                case_ins_compare              ************** //
  39 // ************************************************************************** //
  40
  41 namespace ut_detail {
  42
  43 template<class CharT>
  44 struct case_ins
  45 {
  46     static bool         eq( CharT c1, CharT c2 ) { return (std::toupper)( c1 ) == (std::toupper)( c2 ); }
  47     static bool         lt( CharT c1, CharT c2 ) { return (std::toupper)( c1 ) <  (std::toupper)( c2 ); }
  48
  49     static int          compare( CharT const* s1, CharT const* s2, std::size_t n )
  50     {
  51         for( std::size_t i = 0; i < n; ++i ) {
  52             if( !eq( s1[i], s2[i] ) )
  53                 return lt( s1[i], s2[i] ) ? -1 : 1;
  54         }
  55         return 0;
  56     }
  57 };
  58
  59 } // namespace ut_detail
  60
  61 // ************************************************************************** //
  62 // **************                  case_ins_eq                 ************** //
  63 // ************************************************************************** //
  64
  65 template<class CharT>
  66 inline bool
  67 case_ins_eq( basic_cstring<CharT> x, basic_cstring<CharT> y )
  68 {
  69     return x.size() == y.size() && ut_detail::case_ins<CharT>::compare( x.begin(), y.begin(), x.size() ) == 0;
  70 }
  71
  72 //____________________________________________________________________________//
  73
  74 // ************************************************************************** //
  75 // **************                 case_ins_less                ************** //
  76 // ************************************************************************** //
  77
  78 template<class CharT>
  79 class case_ins_less
  80 {
  81 public:
  82     typedef bool result_type;
  83     typedef basic_cstring<CharT> first_argument_type;
  84     typedef basic_cstring<CharT> second_argument_type;
  85
  86     bool operator()( basic_cstring<CharT> x, basic_cstring<CharT> y ) const
  87     {
  88         return x.size() != y.size()
  89                 ? x.size() < y.size()
  90                 : ut_detail::case_ins<CharT>::compare( x.begin(), y.begin(), x.size() ) < 0;
  91     }
  92 };
  93
  94 //____________________________________________________________________________//
  95
  96 // ************************************************************************** //
  97 // **************                 operators <,>                ************** //
  98 // ************************************************************************** //
  99
 100 template<class CharT>
 101 inline bool
 102 operator <( boost::unit_test::basic_cstring<CharT> const& x,
 103             boost::unit_test::basic_cstring<CharT> const& y )
 104 {
 105     typedef typename boost::unit_test::basic_cstring<CharT>::traits_type traits_type;
 106     return x.size() != y.size()
 107             ? x.size() < y.size()
 108             : traits_type::compare( x.begin(), y.begin(), x.size() ) < 0;
 109 }
 110
 111 //____________________________________________________________________________//
 112
 113 template<class CharT>
 114 inline bool
 115 operator <=( boost::unit_test::basic_cstring<CharT> const& x,
 116             boost::unit_test::basic_cstring<CharT> const& y )
 117 {
 118     return !(y < x);
 119 }
 120
 121 //____________________________________________________________________________//
 122
 123 template<class CharT>
 124 inline bool
 125 operator >( boost::unit_test::basic_cstring<CharT> const& x,
 126             boost::unit_test::basic_cstring<CharT> const& y )
 127 {
 128     return y < x;
 129 }
 130
 131 //____________________________________________________________________________//
 132
 133 template<class CharT>
 134 inline bool
 135 operator >=( boost::unit_test::basic_cstring<CharT> const& x,
 136             boost::unit_test::basic_cstring<CharT> const& y )
 137 {
 138     return !(x < y);
 139 }
 140
 141 //____________________________________________________________________________//
 142
 143 } // namespace unit_test
 144
 145 } // namespace boost
 146
 147 //____________________________________________________________________________//
 148
 149 #include <boost/test/detail/enable_warnings.hpp>
 150
 151 #endif // BOOST_TEST_BASIC_CSTRING_COMPARE_HPP_071894GER