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//
// ip/address_v4_range.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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)
//
#ifndef ASIO_IP_ADDRESS_V4_RANGE_HPP
#define ASIO_IP_ADDRESS_V4_RANGE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#include "asio/ip/address_v4_iterator.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace ip {
template <typename> class basic_address_range;
/// Represents a range of IPv4 addresses.
/**
* @par Thread Safety
* @e Distinct @e objects: Safe.@n
* @e Shared @e objects: Unsafe.
*/
template <> class basic_address_range<address_v4>
{
public:
/// The type of an iterator that points into the range.
typedef basic_address_iterator<address_v4> iterator;
/// Construct an empty range.
basic_address_range() ASIO_NOEXCEPT
: begin_(address_v4()),
end_(address_v4())
{
}
/// Construct an range that represents the given range of addresses.
explicit basic_address_range(const iterator& first,
const iterator& last) ASIO_NOEXCEPT
: begin_(first),
end_(last)
{
}
/// Copy constructor.
basic_address_range(const basic_address_range& other) ASIO_NOEXCEPT
: begin_(other.begin_),
end_(other.end_)
{
}
#if defined(ASIO_HAS_MOVE)
/// Move constructor.
basic_address_range(basic_address_range&& other) ASIO_NOEXCEPT
: begin_(ASIO_MOVE_CAST(iterator)(other.begin_)),
end_(ASIO_MOVE_CAST(iterator)(other.end_))
{
}
#endif // defined(ASIO_HAS_MOVE)
/// Assignment operator.
basic_address_range& operator=(
const basic_address_range& other) ASIO_NOEXCEPT
{
begin_ = other.begin_;
end_ = other.end_;
return *this;
}
#if defined(ASIO_HAS_MOVE)
/// Move assignment operator.
basic_address_range& operator=(
basic_address_range&& other) ASIO_NOEXCEPT
{
begin_ = ASIO_MOVE_CAST(iterator)(other.begin_);
end_ = ASIO_MOVE_CAST(iterator)(other.end_);
return *this;
}
#endif // defined(ASIO_HAS_MOVE)
/// Obtain an iterator that points to the start of the range.
iterator begin() const ASIO_NOEXCEPT
{
return begin_;
}
/// Obtain an iterator that points to the end of the range.
iterator end() const ASIO_NOEXCEPT
{
return end_;
}
/// Determine whether the range is empty.
bool empty() const ASIO_NOEXCEPT
{
return size() == 0;
}
/// Return the size of the range.
std::size_t size() const ASIO_NOEXCEPT
{
return end_->to_uint() - begin_->to_uint();
}
/// Find an address in the range.
iterator find(const address_v4& addr) const ASIO_NOEXCEPT
{
return addr >= *begin_ && addr < *end_ ? iterator(addr) : end_;
}
private:
iterator begin_;
iterator end_;
};
/// Represents a range of IPv4 addresses.
typedef basic_address_range<address_v4> address_v4_range;
} // namespace ip
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // ASIO_IP_ADDRESS_V4_RANGE_HPP
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