Initial preparations for CURL and Discord integration.

module/Vendor/ASIO/include/asio/ip/resolver_base.hpp

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+//
+// ip/resolver_base.hpp
+// ~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 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_RESOLVER_BASE_HPP
+#define ASIO_IP_RESOLVER_BASE_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// The resolver_base class is used as a base for the basic_resolver class
+/// templates to provide a common place to define the flag constants.
+class resolver_base
+{
+public:
+#if defined(GENERATING_DOCUMENTATION)
+  /// A bitmask type (C++ Std [lib.bitmask.types]).
+  typedef unspecified flags;
+
+  /// Determine the canonical name of the host specified in the query.
+  static const flags canonical_name = implementation_defined;
+
+  /// Indicate that returned endpoint is intended for use as a locally bound
+  /// socket endpoint.
+  static const flags passive = implementation_defined;
+
+  /// Host name should be treated as a numeric string defining an IPv4 or IPv6
+  /// address and no name resolution should be attempted.
+  static const flags numeric_host = implementation_defined;
+
+  /// Service name should be treated as a numeric string defining a port number
+  /// and no name resolution should be attempted.
+  static const flags numeric_service = implementation_defined;
+
+  /// If the query protocol family is specified as IPv6, return IPv4-mapped
+  /// IPv6 addresses on finding no IPv6 addresses.
+  static const flags v4_mapped = implementation_defined;
+
+  /// If used with v4_mapped, return all matching IPv6 and IPv4 addresses.
+  static const flags all_matching = implementation_defined;
+
+  /// Only return IPv4 addresses if a non-loopback IPv4 address is configured
+  /// for the system. Only return IPv6 addresses if a non-loopback IPv6 address
+  /// is configured for the system.
+  static const flags address_configured = implementation_defined;
+#else
+  enum flags
+  {
+    canonical_name = ASIO_OS_DEF(AI_CANONNAME),
+    passive = ASIO_OS_DEF(AI_PASSIVE),
+    numeric_host = ASIO_OS_DEF(AI_NUMERICHOST),
+    numeric_service = ASIO_OS_DEF(AI_NUMERICSERV),
+    v4_mapped = ASIO_OS_DEF(AI_V4MAPPED),
+    all_matching = ASIO_OS_DEF(AI_ALL),
+    address_configured = ASIO_OS_DEF(AI_ADDRCONFIG)
+  };
+
+  // Implement bitmask operations as shown in C++ Std [lib.bitmask.types].
+
+  friend flags operator&(flags x, flags y)
+  {
+    return static_cast<flags>(
+        static_cast<unsigned int>(x) & static_cast<unsigned int>(y));
+  }
+
+  friend flags operator|(flags x, flags y)
+  {
+    return static_cast<flags>(
+        static_cast<unsigned int>(x) | static_cast<unsigned int>(y));
+  }
+
+  friend flags operator^(flags x, flags y)
+  {
+    return static_cast<flags>(
+        static_cast<unsigned int>(x) ^ static_cast<unsigned int>(y));
+  }
+
+  friend flags operator~(flags x)
+  {
+    return static_cast<flags>(~static_cast<unsigned int>(x));
+  }
+
+  friend flags& operator&=(flags& x, flags y)
+  {
+    x = x & y;
+    return x;
+  }
+
+  friend flags& operator|=(flags& x, flags y)
+  {
+    x = x | y;
+    return x;
+  }
+
+  friend flags& operator^=(flags& x, flags y)
+  {
+    x = x ^ y;
+    return x;
+  }
+#endif
+
+protected:
+  /// Protected destructor to prevent deletion through this type.
+  ~resolver_base()
+  {
+  }
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_RESOLVER_BASE_HPP