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1 //
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2 // ip/address.hpp
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3 // ~~~~~~~~~~~~~~
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4 //
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5 // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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6 //
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7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
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8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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9 //
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10
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11 #ifndef BOOST_ASIO_IP_ADDRESS_HPP
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12 #define BOOST_ASIO_IP_ADDRESS_HPP
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13
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14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
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15 # pragma once
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16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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17
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18 #include <boost/asio/detail/config.hpp>
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19 #include <string>
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20 #include <boost/system/error_code.hpp>
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21 #include <boost/asio/ip/address_v4.hpp>
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22 #include <boost/asio/ip/address_v6.hpp>
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23
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24 #if !defined(BOOST_ASIO_NO_IOSTREAM)
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25 # include <iosfwd>
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26 #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
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27
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28 #include <boost/asio/detail/push_options.hpp>
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29
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30 namespace boost {
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31 namespace asio {
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32 namespace ip {
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33
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34 /// Implements version-independent IP addresses.
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35 /**
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36 * The boost::asio::ip::address class provides the ability to use either IP
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37 * version 4 or version 6 addresses.
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38 *
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39 * @par Thread Safety
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40 * @e Distinct @e objects: Safe.@n
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41 * @e Shared @e objects: Unsafe.
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42 */
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43 class address
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44 {
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45 public:
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46 /// Default constructor.
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47 BOOST_ASIO_DECL address();
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48
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49 /// Construct an address from an IPv4 address.
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50 BOOST_ASIO_DECL address(const boost::asio::ip::address_v4& ipv4_address);
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51
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52 /// Construct an address from an IPv6 address.
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53 BOOST_ASIO_DECL address(const boost::asio::ip::address_v6& ipv6_address);
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54
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55 /// Copy constructor.
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56 BOOST_ASIO_DECL address(const address& other);
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57
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58 #if defined(BOOST_ASIO_HAS_MOVE)
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59 /// Move constructor.
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60 BOOST_ASIO_DECL address(address&& other);
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61 #endif // defined(BOOST_ASIO_HAS_MOVE)
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62
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63 /// Assign from another address.
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64 BOOST_ASIO_DECL address& operator=(const address& other);
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65
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66 #if defined(BOOST_ASIO_HAS_MOVE)
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67 /// Move-assign from another address.
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68 BOOST_ASIO_DECL address& operator=(address&& other);
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69 #endif // defined(BOOST_ASIO_HAS_MOVE)
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70
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71 /// Assign from an IPv4 address.
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72 BOOST_ASIO_DECL address& operator=(
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73 const boost::asio::ip::address_v4& ipv4_address);
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74
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75 /// Assign from an IPv6 address.
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76 BOOST_ASIO_DECL address& operator=(
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77 const boost::asio::ip::address_v6& ipv6_address);
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78
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79 /// Get whether the address is an IP version 4 address.
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80 bool is_v4() const
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81 {
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82 return type_ == ipv4;
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83 }
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84
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85 /// Get whether the address is an IP version 6 address.
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86 bool is_v6() const
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87 {
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88 return type_ == ipv6;
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89 }
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90
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91 /// Get the address as an IP version 4 address.
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92 BOOST_ASIO_DECL boost::asio::ip::address_v4 to_v4() const;
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93
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94 /// Get the address as an IP version 6 address.
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95 BOOST_ASIO_DECL boost::asio::ip::address_v6 to_v6() const;
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96
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97 /// Get the address as a string in dotted decimal format.
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98 BOOST_ASIO_DECL std::string to_string() const;
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99
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100 /// Get the address as a string in dotted decimal format.
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101 BOOST_ASIO_DECL std::string to_string(boost::system::error_code& ec) const;
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102
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103 /// Create an address from an IPv4 address string in dotted decimal form,
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104 /// or from an IPv6 address in hexadecimal notation.
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105 BOOST_ASIO_DECL static address from_string(const char* str);
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106
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107 /// Create an address from an IPv4 address string in dotted decimal form,
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108 /// or from an IPv6 address in hexadecimal notation.
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109 BOOST_ASIO_DECL static address from_string(
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110 const char* str, boost::system::error_code& ec);
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111
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112 /// Create an address from an IPv4 address string in dotted decimal form,
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113 /// or from an IPv6 address in hexadecimal notation.
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114 BOOST_ASIO_DECL static address from_string(const std::string& str);
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115
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116 /// Create an address from an IPv4 address string in dotted decimal form,
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117 /// or from an IPv6 address in hexadecimal notation.
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118 BOOST_ASIO_DECL static address from_string(
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119 const std::string& str, boost::system::error_code& ec);
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120
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121 /// Determine whether the address is a loopback address.
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122 BOOST_ASIO_DECL bool is_loopback() const;
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123
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124 /// Determine whether the address is unspecified.
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125 BOOST_ASIO_DECL bool is_unspecified() const;
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126
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127 /// Determine whether the address is a multicast address.
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128 BOOST_ASIO_DECL bool is_multicast() const;
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129
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130 /// Compare two addresses for equality.
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131 BOOST_ASIO_DECL friend bool operator==(const address& a1, const address& a2);
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132
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133 /// Compare two addresses for inequality.
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134 friend bool operator!=(const address& a1, const address& a2)
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135 {
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136 return !(a1 == a2);
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137 }
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138
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139 /// Compare addresses for ordering.
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140 BOOST_ASIO_DECL friend bool operator<(const address& a1, const address& a2);
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141
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142 /// Compare addresses for ordering.
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143 friend bool operator>(const address& a1, const address& a2)
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144 {
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145 return a2 < a1;
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146 }
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147
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148 /// Compare addresses for ordering.
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149 friend bool operator<=(const address& a1, const address& a2)
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150 {
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151 return !(a2 < a1);
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152 }
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153
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154 /// Compare addresses for ordering.
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155 friend bool operator>=(const address& a1, const address& a2)
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156 {
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157 return !(a1 < a2);
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158 }
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159
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160 private:
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161 // The type of the address.
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162 enum { ipv4, ipv6 } type_;
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163
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164 // The underlying IPv4 address.
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165 boost::asio::ip::address_v4 ipv4_address_;
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166
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167 // The underlying IPv6 address.
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168 boost::asio::ip::address_v6 ipv6_address_;
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169 };
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170
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171 #if !defined(BOOST_ASIO_NO_IOSTREAM)
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172
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173 /// Output an address as a string.
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174 /**
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175 * Used to output a human-readable string for a specified address.
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176 *
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177 * @param os The output stream to which the string will be written.
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178 *
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179 * @param addr The address to be written.
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180 *
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181 * @return The output stream.
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182 *
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183 * @relates boost::asio::ip::address
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184 */
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185 template <typename Elem, typename Traits>
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186 std::basic_ostream<Elem, Traits>& operator<<(
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187 std::basic_ostream<Elem, Traits>& os, const address& addr);
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188
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189 #endif // !defined(BOOST_ASIO_NO_IOSTREAM)
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190
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191 } // namespace ip
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192 } // namespace asio
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193 } // namespace boost
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194
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195 #include <boost/asio/detail/pop_options.hpp>
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196
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197 #include <boost/asio/ip/impl/address.hpp>
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198 #if defined(BOOST_ASIO_HEADER_ONLY)
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199 # include <boost/asio/ip/impl/address.ipp>
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200 #endif // defined(BOOST_ASIO_HEADER_ONLY)
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201
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202 #endif // BOOST_ASIO_IP_ADDRESS_HPP
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