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Contents
// interator.hpp workarounds for non-conforming standard libraries ---------//
// (C) Copyright Beman Dawes 2000. 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/utility for documentation.
// Revision History
// 12 Jan 01 added <cstddef> for std::ptrdiff_t (Jens Maurer)
// 28 Jun 00 Workarounds to deal with known MSVC bugs (David Abrahams)
// 26 Jun 00 Initial version (Jeremy Siek)
#ifndef BOOST_ITERATOR_HPP
#define BOOST_ITERATOR_HPP
#include <iterator>
#include <cstddef> // std::ptrdiff_t
#include <boost/config.hpp>
namespace boost
{
# if defined(BOOST_NO_STD_ITERATOR) && !defined(BOOST_MSVC_STD_ITERATOR)
template <class Category, class T,
class Distance = std::ptrdiff_t,
class Pointer = T*, class Reference = T&>
struct iterator
{
typedef T value_type;
typedef Distance difference_type;
typedef Pointer pointer;
typedef Reference reference;
typedef Category iterator_category;
};
# else
// declare iterator_base in namespace detail to work around MSVC bugs which
// prevent derivation from an identically-named class in a different namespace.
namespace detail {
template <class Category, class T, class Distance, class Pointer, class Reference>
# if !defined(BOOST_MSVC_STD_ITERATOR)
struct iterator_base : std::iterator<Category, T, Distance, Pointer, Reference> {};
# else
struct iterator_base : std::iterator<Category, T, Distance>
{
typedef Reference reference;
typedef Pointer pointer;
typedef Distance difference_type;
};
# endif
}
template <class Category, class T, class Distance = std::ptrdiff_t,
class Pointer = T*, class Reference = T&>
struct iterator : boost::detail::iterator_base<Category, T, Distance, Pointer, Reference> {};
# endif
} // namespace boost
#endif // BOOST_ITERATOR_HPP
Version data entries
57 entries across 57 versions & 8 rubygems