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- //
- // ip/address_v4_range.hpp
- // ~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2019 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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