boost/test/utils/basic_cstring/compare.hpp
// (C) Copyright Gennadiy Rozental 2004-2008.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org/libs/test for the library home page.
//
// File : $RCSfile$
//
// Version : $Revision: 49312 $
//
// Description : class basic_cstring comparisons implementation
// ***************************************************************************
#ifndef BOOST_TEST_BASIC_CSTRING_COMPARE_HPP_071894GER
#define BOOST_TEST_BASIC_CSTRING_COMPARE_HPP_071894GER
// Boost.Test
#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
// STL
#include <functional>
#include <cctype>
#include <boost/test/detail/suppress_warnings.hpp>
//____________________________________________________________________________//
# if defined(BOOST_NO_STDC_NAMESPACE) && !BOOST_WORKAROUND(__BORLANDC__, <= 0x570)
namespace std { using ::toupper; }
# endif
namespace boost {
namespace unit_test {
// ************************************************************************** //
// ************** case_ins_compare ************** //
// ************************************************************************** //
namespace ut_detail {
template<class CharT>
struct case_ins
{
static bool eq( CharT c1, CharT c2 ) { return (std::toupper)( c1 ) == (std::toupper)( c2 ); }
static bool lt( CharT c1, CharT c2 ) { return (std::toupper)( c1 ) < (std::toupper)( c2 ); }
static int compare( CharT const* s1, CharT const* s2, std::size_t n )
{
for( std::size_t i = 0; i < n; ++i ) {
if( !eq( s1[i], s2[i] ) )
return lt( s1[i], s2[i] ) ? -1 : 1;
}
return 0;
}
};
} // namespace ut_detail
// ************************************************************************** //
// ************** case_ins_eq ************** //
// ************************************************************************** //
template<class CharT>
inline bool
case_ins_eq( basic_cstring<CharT> x, basic_cstring<CharT> y )
{
return x.size() == y.size() && ut_detail::case_ins<CharT>::compare( x.begin(), y.begin(), x.size() ) == 0;
}
//____________________________________________________________________________//
// ************************************************************************** //
// ************** case_ins_less ************** //
// ************************************************************************** //
template<class CharT>
class case_ins_less : public std::binary_function<basic_cstring<CharT>,basic_cstring<CharT>,bool>
{
public:
bool operator()( basic_cstring<CharT> x, basic_cstring<CharT> y ) const
{
return x.size() != y.size()
? x.size() < y.size()
: ut_detail::case_ins<CharT>::compare( x.begin(), y.begin(), x.size() ) < 0;
}
};
//____________________________________________________________________________//
// ************************************************************************** //
// ************** operator < ************** //
// ************************************************************************** //
template<class CharT>
inline bool
operator <( boost::unit_test::basic_cstring<CharT> const& x,
boost::unit_test::basic_cstring<CharT> const& y )
{
typedef typename boost::unit_test::basic_cstring<CharT>::traits_type traits_type;
return x.size() != y.size()
? x.size() < y.size()
: traits_type::compare( x.begin(), y.begin(), x.size() ) < 0;
}
} // namespace unit_test
} // namespace boost
//____________________________________________________________________________//
#include <boost/test/detail/enable_warnings.hpp>
#endif // BOOST_TEST_BASIC_CSTRING_COMPARE_HPP_071894GER