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// char_traits.hpp
// Copyright (c) 2007-2009 Ben Hanson (http://www.benhanson.net/)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file licence_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_LEXER_CHAR_TRAITS_H
#define BOOST_LEXER_CHAR_TRAITS_H
// Make sure wchar_t is defined
#include <string>
namespace boost
{
namespace lexer
{
template<typename CharT>
struct char_traits
{
typedef CharT char_type;
typedef CharT index_type;
static index_type call (CharT ch)
{
return ch;
}
};
template<>
struct char_traits<char>
{
typedef char char_type;
typedef unsigned char index_type;
static index_type call (char ch)
{
return static_cast<index_type>(ch);
}
};
template<>
struct char_traits<wchar_t>
{
typedef wchar_t char_type;
typedef wchar_t index_type;
static index_type call (wchar_t ch)
{
return ch;
}
};
}
}
#endif
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