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243 lines
6.7 KiB
243 lines
6.7 KiB
// |
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// ip/address_v4.hpp |
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// ~~~~~~~~~~~~~~~~~ |
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// |
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// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
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// |
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// Distributed under the Boost Software License, Version 1.0. (See accompanying |
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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// |
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#ifndef BOOST_ASIO_IP_ADDRESS_V4_HPP |
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#define BOOST_ASIO_IP_ADDRESS_V4_HPP |
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#if defined(_MSC_VER) && (_MSC_VER >= 1200) |
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# pragma once |
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
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#include <boost/asio/detail/config.hpp> |
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#include <string> |
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#include <boost/asio/detail/array.hpp> |
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#include <boost/asio/detail/socket_types.hpp> |
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#include <boost/asio/detail/winsock_init.hpp> |
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#include <boost/system/error_code.hpp> |
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#if !defined(BOOST_NO_IOSTREAM) |
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# include <iosfwd> |
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#endif // !defined(BOOST_NO_IOSTREAM) |
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#include <boost/asio/detail/push_options.hpp> |
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namespace boost { |
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namespace asio { |
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namespace ip { |
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/// Implements IP version 4 style addresses. |
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/** |
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* The boost::asio::ip::address_v4 class provides the ability to use and |
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* manipulate IP version 4 addresses. |
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* |
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* @par Thread Safety |
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* @e Distinct @e objects: Safe.@n |
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* @e Shared @e objects: Unsafe. |
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*/ |
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class address_v4 |
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{ |
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public: |
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/// The type used to represent an address as an array of bytes. |
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/** |
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* @note This type is defined in terms of the C++0x template @c std::array |
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* when it is available. Otherwise, it uses @c boost:array. |
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*/ |
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#if defined(GENERATING_DOCUMENTATION) |
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typedef array<unsigned char, 4> bytes_type; |
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#else |
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typedef boost::asio::detail::array<unsigned char, 4> bytes_type; |
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#endif |
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/// Default constructor. |
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address_v4() |
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{ |
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addr_.s_addr = 0; |
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} |
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/// Construct an address from raw bytes. |
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BOOST_ASIO_DECL explicit address_v4(const bytes_type& bytes); |
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/// Construct an address from a unsigned long in host byte order. |
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BOOST_ASIO_DECL explicit address_v4(unsigned long addr); |
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/// Copy constructor. |
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address_v4(const address_v4& other) |
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: addr_(other.addr_) |
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{ |
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} |
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#if defined(BOOST_ASIO_HAS_MOVE) |
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/// Move constructor. |
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address_v4(address_v4&& other) |
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: addr_(other.addr_) |
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{ |
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} |
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#endif // defined(BOOST_ASIO_HAS_MOVE) |
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/// Assign from another address. |
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address_v4& operator=(const address_v4& other) |
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{ |
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addr_ = other.addr_; |
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return *this; |
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} |
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#if defined(BOOST_ASIO_HAS_MOVE) |
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/// Move-assign from another address. |
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address_v4& operator=(address_v4&& other) |
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{ |
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addr_ = other.addr_; |
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return *this; |
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} |
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#endif // defined(BOOST_ASIO_HAS_MOVE) |
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/// Get the address in bytes, in network byte order. |
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BOOST_ASIO_DECL bytes_type to_bytes() const; |
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/// Get the address as an unsigned long in host byte order |
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BOOST_ASIO_DECL unsigned long to_ulong() const; |
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/// Get the address as a string in dotted decimal format. |
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BOOST_ASIO_DECL std::string to_string() const; |
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/// Get the address as a string in dotted decimal format. |
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BOOST_ASIO_DECL std::string to_string(boost::system::error_code& ec) const; |
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/// Create an address from an IP address string in dotted decimal form. |
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BOOST_ASIO_DECL static address_v4 from_string(const char* str); |
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/// Create an address from an IP address string in dotted decimal form. |
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BOOST_ASIO_DECL static address_v4 from_string( |
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const char* str, boost::system::error_code& ec); |
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/// Create an address from an IP address string in dotted decimal form. |
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BOOST_ASIO_DECL static address_v4 from_string(const std::string& str); |
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/// Create an address from an IP address string in dotted decimal form. |
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BOOST_ASIO_DECL static address_v4 from_string( |
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const std::string& str, boost::system::error_code& ec); |
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/// Determine whether the address is a loopback address. |
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BOOST_ASIO_DECL bool is_loopback() const; |
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/// Determine whether the address is unspecified. |
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BOOST_ASIO_DECL bool is_unspecified() const; |
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/// Determine whether the address is a class A address. |
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BOOST_ASIO_DECL bool is_class_a() const; |
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/// Determine whether the address is a class B address. |
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BOOST_ASIO_DECL bool is_class_b() const; |
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/// Determine whether the address is a class C address. |
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BOOST_ASIO_DECL bool is_class_c() const; |
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/// Determine whether the address is a multicast address. |
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BOOST_ASIO_DECL bool is_multicast() const; |
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/// Compare two addresses for equality. |
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friend bool operator==(const address_v4& a1, const address_v4& a2) |
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{ |
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return a1.addr_.s_addr == a2.addr_.s_addr; |
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} |
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/// Compare two addresses for inequality. |
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friend bool operator!=(const address_v4& a1, const address_v4& a2) |
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{ |
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return a1.addr_.s_addr != a2.addr_.s_addr; |
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} |
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/// Compare addresses for ordering. |
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friend bool operator<(const address_v4& a1, const address_v4& a2) |
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{ |
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return a1.to_ulong() < a2.to_ulong(); |
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} |
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/// Compare addresses for ordering. |
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friend bool operator>(const address_v4& a1, const address_v4& a2) |
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{ |
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return a1.to_ulong() > a2.to_ulong(); |
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} |
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/// Compare addresses for ordering. |
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friend bool operator<=(const address_v4& a1, const address_v4& a2) |
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{ |
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return a1.to_ulong() <= a2.to_ulong(); |
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} |
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/// Compare addresses for ordering. |
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friend bool operator>=(const address_v4& a1, const address_v4& a2) |
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{ |
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return a1.to_ulong() >= a2.to_ulong(); |
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} |
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/// Obtain an address object that represents any address. |
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static address_v4 any() |
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{ |
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return address_v4(); |
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} |
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/// Obtain an address object that represents the loopback address. |
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static address_v4 loopback() |
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{ |
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return address_v4(0x7F000001); |
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} |
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/// Obtain an address object that represents the broadcast address. |
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static address_v4 broadcast() |
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{ |
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return address_v4(0xFFFFFFFF); |
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} |
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/// Obtain an address object that represents the broadcast address that |
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/// corresponds to the specified address and netmask. |
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BOOST_ASIO_DECL static address_v4 broadcast( |
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const address_v4& addr, const address_v4& mask); |
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/// Obtain the netmask that corresponds to the address, based on its address |
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/// class. |
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BOOST_ASIO_DECL static address_v4 netmask(const address_v4& addr); |
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private: |
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// The underlying IPv4 address. |
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boost::asio::detail::in4_addr_type addr_; |
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}; |
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#if !defined(BOOST_NO_IOSTREAM) |
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/// Output an address as a string. |
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/** |
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* Used to output a human-readable string for a specified address. |
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* |
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* @param os The output stream to which the string will be written. |
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* |
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* @param addr The address to be written. |
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* |
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* @return The output stream. |
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* |
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* @relates boost::asio::ip::address_v4 |
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*/ |
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template <typename Elem, typename Traits> |
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std::basic_ostream<Elem, Traits>& operator<<( |
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std::basic_ostream<Elem, Traits>& os, const address_v4& addr); |
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#endif // !defined(BOOST_NO_IOSTREAM) |
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} // namespace ip |
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} // namespace asio |
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} // namespace boost |
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#include <boost/asio/detail/pop_options.hpp> |
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#include <boost/asio/ip/impl/address_v4.hpp> |
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#if defined(BOOST_ASIO_HEADER_ONLY) |
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# include <boost/asio/ip/impl/address_v4.ipp> |
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#endif // defined(BOOST_ASIO_HEADER_ONLY) |
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#endif // BOOST_ASIO_IP_ADDRESS_V4_HPP
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