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+//
+// ip/detail/endpoint.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2024 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_DETAIL_ENDPOINT_HPP
+#define ASIO_IP_DETAIL_ENDPOINT_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include <string>
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/winsock_init.hpp"
+#include "asio/error_code.hpp"
+#include "asio/ip/address.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+namespace detail {
+
+// Helper class for implementating an IP endpoint.
+class endpoint
+{
+public:
+ // Default constructor.
+ ASIO_DECL endpoint() noexcept;
+
+ // Construct an endpoint using a family and port number.
+ ASIO_DECL endpoint(int family,
+ unsigned short port_num) noexcept;
+
+ // Construct an endpoint using an address and port number.
+ ASIO_DECL endpoint(const asio::ip::address& addr,
+ unsigned short port_num) noexcept;
+
+ // Copy constructor.
+ endpoint(const endpoint& other) noexcept
+ : data_(other.data_)
+ {
+ }
+
+ // Assign from another endpoint.
+ endpoint& operator=(const endpoint& other) noexcept
+ {
+ data_ = other.data_;
+ return *this;
+ }
+
+ // Get the underlying endpoint in the native type.
+ asio::detail::socket_addr_type* data() noexcept
+ {
+ return &data_.base;
+ }
+
+ // Get the underlying endpoint in the native type.
+ const asio::detail::socket_addr_type* data() const noexcept
+ {
+ return &data_.base;
+ }
+
+ // Get the underlying size of the endpoint in the native type.
+ std::size_t size() const noexcept
+ {
+ if (is_v4())
+ return sizeof(asio::detail::sockaddr_in4_type);
+ else
+ return sizeof(asio::detail::sockaddr_in6_type);
+ }
+
+ // Set the underlying size of the endpoint in the native type.
+ ASIO_DECL void resize(std::size_t new_size);
+
+ // Get the capacity of the endpoint in the native type.
+ std::size_t capacity() const noexcept
+ {
+ return sizeof(data_);
+ }
+
+ // Get the port associated with the endpoint.
+ ASIO_DECL unsigned short port() const noexcept;
+
+ // Set the port associated with the endpoint.
+ ASIO_DECL void port(unsigned short port_num) noexcept;
+
+ // Get the IP address associated with the endpoint.
+ ASIO_DECL asio::ip::address address() const noexcept;
+
+ // Set the IP address associated with the endpoint.
+ ASIO_DECL void address(
+ const asio::ip::address& addr) noexcept;
+
+ // Compare two endpoints for equality.
+ ASIO_DECL friend bool operator==(const endpoint& e1,
+ const endpoint& e2) noexcept;
+
+ // Compare endpoints for ordering.
+ ASIO_DECL friend bool operator<(const endpoint& e1,
+ const endpoint& e2) noexcept;
+
+ // Determine whether the endpoint is IPv4.
+ bool is_v4() const noexcept
+ {
+ return data_.base.sa_family == ASIO_OS_DEF(AF_INET);
+ }
+
+#if !defined(ASIO_NO_IOSTREAM)
+ // Convert to a string.
+ ASIO_DECL std::string to_string() const;
+#endif // !defined(ASIO_NO_IOSTREAM)
+
+private:
+ // The underlying IP socket address.
+ union data_union
+ {
+ asio::detail::socket_addr_type base;
+ asio::detail::sockaddr_in4_type v4;
+ asio::detail::sockaddr_in6_type v6;
+ } data_;
+};
+
+} // namespace detail
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#if defined(ASIO_HEADER_ONLY)
+# include "asio/ip/detail/impl/endpoint.ipp"
+#endif // defined(ASIO_HEADER_ONLY)
+
+#endif // ASIO_IP_DETAIL_ENDPOINT_HPP