chore: op<< is dll exported

Author: vinniefalco

include/boost/url/ipv4_address.hpp

@@ -313,29 +313,30 @@ class ipv4_address
         return ipv4_address(0xFFFFFFFF);
     }
 
-    /** Format the address to an output stream.
-
-        IPv4 addresses written to output streams
-        are written in their dotted decimal format.
+/** Format the address to an output stream.
 
-        @param os The output stream.
+    IPv4 addresses written to output streams
+    are written in their dotted decimal format.
 
-        @param addr The address to format.
-    */
+    @param os The output stream.
+    @param addr The address to format.
+    @return The output stream.
+*/
     friend
     std::ostream&
     operator<<(
         std::ostream& os,
         ipv4_address const& addr)
     {
-        char buf[ipv4_address::max_str_len];
-        os << addr.to_buffer(buf, sizeof(buf));
+        addr.write_ostream(os);
         return os;
     }
 
 private:
     friend class ipv6_address;
 
+    BOOST_URL_DECL void write_ostream(std::ostream&) const;
+
     BOOST_URL_DECL
     std::size_t
     print_impl(
@@ -349,20 +350,6 @@ class ipv4_address
     uint_type addr_ = 0;
 };
 
-/** Format the address to an output stream.
-
-    IPv4 addresses written to output streams
-    are written in their dotted decimal format.
-
-    @param os The output stream.
-    @param addr The address to format.
-    @return The output stream.
-*/
-std::ostream&
-operator<<(
-    std::ostream& os,
-    ipv4_address const& addr);
-
 //------------------------------------------------
 
 /** Return an IPv4 address from an IP address string in dotted decimal form

include/boost/url/ipv6_address.hpp

@@ -345,9 +345,8 @@ class ipv6_address
 
     /** Format the address to an output stream
 
-        This hidden friend function writes the
-        address to an output stream using
-        standard notation.
+        This function writes the address to an
+        output stream using standard notation.
 
         @return The output stream, for chaining.
 
@@ -361,15 +360,13 @@ class ipv6_address
         std::ostream& os,
         ipv6_address const& addr)
     {
-        char buf[ipv6_address::max_str_len];
-        auto const s = addr.to_buffer(
-            buf, sizeof(buf));
-        os << s;
+        addr.write_ostream(os);
         return os;
     }
 
-
 private:
+    BOOST_URL_DECL void write_ostream(std::ostream&) const;
+
     BOOST_URL_DECL
     std::size_t
     print_impl(
@@ -383,22 +380,6 @@ class ipv6_address
     bytes_type addr_{{}};
 };
 
-/** Format the address to an output stream
-
-    This function writes the address to an
-    output stream using standard notation.
-
-    @return The output stream, for chaining.
-
-    @param os The output stream to write to.
-
-    @param addr The address to write.
-*/
-std::ostream&
-operator<<(
-    std::ostream& os,
-    ipv6_address const& addr);
-
 //------------------------------------------------
 
 /** Parse a string containing an IPv6 address.

src/ipv4_address.cpp

@@ -101,6 +101,14 @@ is_multicast() const noexcept
         0xE0000000;
 }
 
+void
+ipv4_address::
+write_ostream(std::ostream& os) const
+{
+    char buf[ipv4_address::max_str_len];
+    os << to_buffer(buf, sizeof(buf));
+}
+
 std::size_t
 ipv4_address::
 print_impl(

src/ipv6_address.cpp

@@ -96,6 +96,16 @@ loopback() noexcept
     return a;
 }
 
+void
+ipv6_address::
+write_ostream(
+    std::ostream& os) const
+{
+    char buf[ipv6_address::max_str_len];
+    auto const s = to_buffer(buf, sizeof(buf));
+    os << s;
+}
+
 std::size_t
 ipv6_address::
 print_impl(