[Boost-commit] svn:boost r58761 - in trunk/boost/asio: . impl ip local

Subject: [Boost-commit] svn:boost r58761 - in trunk/boost/asio: . impl ip local
From: chris_at_[hidden]
Date: 2010-01-06 07:27:07

Author: chris_kohlhoff
Date: 2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
New Revision: 58761
URL: http://svn.boost.org/trac/boost/changeset/58761

Log:
Disable iostreams-related functionality if BOOST_NO_IOSTREAMS is defined. Refs #3743.

Text files modified: 
   trunk/boost/asio/basic_socket_iostream.hpp  |     8 ++++++++                                
   trunk/boost/asio/basic_socket_streambuf.hpp |     8 ++++++++                                
   trunk/boost/asio/basic_streambuf.hpp        |     8 ++++++++                                
   trunk/boost/asio/impl/read.ipp              |     8 ++++++++                                
   trunk/boost/asio/impl/read_at.ipp           |     8 ++++++++                                
   trunk/boost/asio/impl/write.ipp             |     8 ++++++++                                
   trunk/boost/asio/impl/write_at.ipp          |     8 ++++++++                                
   trunk/boost/asio/ip/address.hpp             |     9 ++++++++-                               
   trunk/boost/asio/ip/address_v4.hpp          |     8 ++++++++                                
   trunk/boost/asio/ip/address_v6.hpp          |     8 ++++++++                                
   trunk/boost/asio/ip/basic_endpoint.hpp      |    15 +++++++++++----                         
   trunk/boost/asio/ip/tcp.hpp                 |     2 ++                                      
   trunk/boost/asio/local/stream_protocol.hpp  |     2 ++                                      
   trunk/boost/asio/read.hpp                   |     8 ++++++++                                
   trunk/boost/asio/read_at.hpp                |     8 ++++++++                                
   trunk/boost/asio/read_until.hpp             |     9 ++++++++-                               
   trunk/boost/asio/streambuf.hpp              |     4 ++++                                    
   trunk/boost/asio/write.hpp                  |     8 ++++++++                                
   trunk/boost/asio/write_at.hpp               |     8 ++++++++                                
   19 files changed, 139 insertions(+), 6 deletions(-)

Modified: trunk/boost/asio/basic_socket_iostream.hpp
==============================================================================
--- trunk/boost/asio/basic_socket_iostream.hpp	(original)
+++ trunk/boost/asio/basic_socket_iostream.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,6 +18,12 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
+#include <boost/config.hpp>
+#include <boost/asio/detail/pop_options.hpp>
+
+#if !defined(BOOST_NO_IOSTREAM)
+
+#include <boost/asio/detail/push_options.hpp>
 #include <boost/preprocessor/arithmetic/inc.hpp>
 #include <boost/preprocessor/repetition/enum_binary_params.hpp>
 #include <boost/preprocessor/repetition/enum_params.hpp>
@@ -145,6 +151,8 @@
 #undef BOOST_ASIO_PRIVATE_CTR_DEF
 #undef BOOST_ASIO_PRIVATE_CONNECT_DEF
 
+#endif // defined(BOOST_NO_IOSTREAM)
+
 #include <boost/asio/detail/pop_options.hpp>
 
 #endif // BOOST_ASIO_BASIC_SOCKET_IOSTREAM_HPP

Modified: trunk/boost/asio/basic_socket_streambuf.hpp
==============================================================================
--- trunk/boost/asio/basic_socket_streambuf.hpp	(original)
+++ trunk/boost/asio/basic_socket_streambuf.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,6 +18,12 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
+#include <boost/config.hpp>
+#include <boost/asio/detail/pop_options.hpp>
+
+#if !defined(BOOST_NO_IOSTREAM)
+
+#include <boost/asio/detail/push_options.hpp>
 #include <streambuf>
 #include <boost/array.hpp>
 #include <boost/preprocessor/arithmetic/inc.hpp>
@@ -282,6 +288,8 @@
 
 #undef BOOST_ASIO_PRIVATE_CONNECT_DEF
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 #include <boost/asio/detail/pop_options.hpp>
 
 #endif // BOOST_ASIO_BASIC_SOCKET_STREAMBUF_HPP

Modified: trunk/boost/asio/basic_streambuf.hpp
==============================================================================
--- trunk/boost/asio/basic_streambuf.hpp	(original)
+++ trunk/boost/asio/basic_streambuf.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,6 +18,12 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
+#include <boost/config.hpp>
+#include <boost/asio/detail/pop_options.hpp>
+
+#if !defined(BOOST_NO_IOSTREAM)
+
+#include <boost/asio/detail/push_options.hpp>
 #include <algorithm>
 #include <cstring>
 #include <memory>
@@ -339,4 +345,6 @@
 
 #include <boost/asio/detail/pop_options.hpp>
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 #endif // BOOST_ASIO_BASIC_STREAMBUF_HPP

Modified: trunk/boost/asio/impl/read.ipp
==============================================================================
--- trunk/boost/asio/impl/read.ipp	(original)
+++ trunk/boost/asio/impl/read.ipp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -75,6 +75,8 @@
   return bytes_transferred;
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 template <typename SyncReadStream, typename Allocator,
     typename CompletionCondition>
 std::size_t read(SyncReadStream& s,
@@ -122,6 +124,8 @@
   return bytes_transferred;
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncReadStream, typename MutableBufferSequence,
@@ -232,6 +236,8 @@
   async_read(s, buffers, transfer_all(), handler);
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncReadStream, typename Allocator,
@@ -341,6 +347,8 @@
   async_read(s, b, transfer_all(), handler);
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace asio
 } // namespace boost
 

Modified: trunk/boost/asio/impl/read_at.ipp
==============================================================================
--- trunk/boost/asio/impl/read_at.ipp	(original)
+++ trunk/boost/asio/impl/read_at.ipp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -81,6 +81,8 @@
   return bytes_transferred;
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 template <typename SyncRandomAccessReadDevice, typename Allocator,
     typename CompletionCondition>
 std::size_t read_at(SyncRandomAccessReadDevice& d,
@@ -126,6 +128,8 @@
   return bytes_transferred;
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncRandomAccessReadDevice,
@@ -245,6 +249,8 @@
   async_read_at(d, offset, buffers, transfer_all(), handler);
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncRandomAccessReadDevice, typename Allocator,
@@ -359,6 +365,8 @@
   async_read_at(d, offset, b, transfer_all(), handler);
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace asio
 } // namespace boost
 

Modified: trunk/boost/asio/impl/write.ipp
==============================================================================
--- trunk/boost/asio/impl/write.ipp	(original)
+++ trunk/boost/asio/impl/write.ipp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -70,6 +70,8 @@
   return bytes_transferred;
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 template <typename SyncWriteStream, typename Allocator,
     typename CompletionCondition>
 std::size_t write(SyncWriteStream& s,
@@ -103,6 +105,8 @@
   return bytes_transferred;
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncWriteStream, typename ConstBufferSequence,
@@ -213,6 +217,8 @@
   async_write(s, buffers, transfer_all(), handler);
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncWriteStream, typename Allocator,
@@ -288,6 +294,8 @@
   async_write(s, b, transfer_all(), handler);
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace asio
 } // namespace boost
 

Modified: trunk/boost/asio/impl/write_at.ipp
==============================================================================
--- trunk/boost/asio/impl/write_at.ipp	(original)
+++ trunk/boost/asio/impl/write_at.ipp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -76,6 +76,8 @@
   return bytes_transferred;
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 template <typename SyncRandomAccessWriteDevice, typename Allocator,
     typename CompletionCondition>
 std::size_t write_at(SyncRandomAccessWriteDevice& d,
@@ -111,6 +113,8 @@
   return bytes_transferred;
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncRandomAccessWriteDevice, typename ConstBufferSequence,
@@ -227,6 +231,8 @@
   async_write_at(d, offset, buffers, transfer_all(), handler);
 }
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 namespace detail
 {
   template <typename AsyncRandomAccessWriteDevice, typename Allocator,
@@ -305,6 +311,8 @@
   async_write_at(d, offset, b, transfer_all(), handler);
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace asio
 } // namespace boost
 

Modified: trunk/boost/asio/ip/address.hpp
==============================================================================
--- trunk/boost/asio/ip/address.hpp	(original)
+++ trunk/boost/asio/ip/address.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,7 +18,10 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
-#include <iosfwd>
+#include <boost/config.hpp>
+#if !defined(BOOST_NO_IOSTREAM)
+# include <iosfwd>
+#endif // !defined(BOOST_NO_IOSTREAM)
 #include <string>
 #include <boost/throw_exception.hpp>
 #include <boost/asio/detail/pop_options.hpp>
@@ -250,6 +253,8 @@
   boost::asio::ip::address_v6 ipv6_address_;
 };
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Output an address as a string.
 /**
  * Used to output a human-readable string for a specified address.
@@ -270,6 +275,8 @@
   return os;
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace ip
 } // namespace asio
 } // namespace boost

Modified: trunk/boost/asio/ip/address_v4.hpp
==============================================================================
--- trunk/boost/asio/ip/address_v4.hpp	(original)
+++ trunk/boost/asio/ip/address_v4.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,6 +18,10 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
+#include <boost/config.hpp>
+#if !defined(BOOST_NO_IOSTREAM)
+# include <iosfwd>
+#endif // !defined(BOOST_NO_IOSTREAM)
 #include <climits>
 #include <string>
 #include <stdexcept>
@@ -269,6 +273,8 @@
   boost::asio::detail::in4_addr_type addr_;
 };
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Output an address as a string.
 /**
  * Used to output a human-readable string for a specified address.
@@ -300,6 +306,8 @@
   return os;
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace ip
 } // namespace asio
 } // namespace boost

Modified: trunk/boost/asio/ip/address_v6.hpp
==============================================================================
--- trunk/boost/asio/ip/address_v6.hpp	(original)
+++ trunk/boost/asio/ip/address_v6.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,6 +18,10 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
+#include <boost/config.hpp>
+#if !defined(BOOST_NO_IOSTREAM)
+# include <iosfwd>
+#endif // !defined(BOOST_NO_IOSTREAM)
 #include <cstring>
 #include <string>
 #include <stdexcept>
@@ -383,6 +387,8 @@
   unsigned long scope_id_;
 };
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Output an address as a string.
 /**
  * Used to output a human-readable string for a specified address.
@@ -414,6 +420,8 @@
   return os;
 }
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace ip
 } // namespace asio
 } // namespace boost

Modified: trunk/boost/asio/ip/basic_endpoint.hpp
==============================================================================
--- trunk/boost/asio/ip/basic_endpoint.hpp	(original)
+++ trunk/boost/asio/ip/basic_endpoint.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,13 +18,16 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
+#include <boost/config.hpp>
 #include <boost/throw_exception.hpp>
 #include <boost/detail/workaround.hpp>
 #include <cstring>
-#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
-# include <ostream>
-#endif // BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
-#include <sstream>
+#if !defined(BOOST_NO_IOSTREAM)
+# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+#  include <ostream>
+# endif // BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+# include <sstream>
+#endif // !defined(BOOST_NO_IOSTREAM)
 #include <boost/asio/detail/pop_options.hpp>
 
 #include <boost/asio/error.hpp>
@@ -297,6 +300,8 @@
   } data_;
 };
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Output an endpoint as a string.
 /**
  * Used to output a human-readable string for a specified endpoint.
@@ -368,6 +373,8 @@
 }
 #endif // BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 } // namespace ip
 } // namespace asio
 } // namespace boost

Modified: trunk/boost/asio/ip/tcp.hpp
==============================================================================
--- trunk/boost/asio/ip/tcp.hpp	(original)
+++ trunk/boost/asio/ip/tcp.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -93,8 +93,10 @@
   /// The TCP resolver type.
   typedef basic_resolver<tcp> resolver;
 
+#if !defined(BOOST_NO_IOSTREAM)
   /// The TCP iostream type.
   typedef basic_socket_iostream<tcp> iostream;
+#endif // !defined(BOOST_NO_IOSTREAM)
 
   /// Socket option for disabling the Nagle algorithm.
   /**

Modified: trunk/boost/asio/local/stream_protocol.hpp
==============================================================================
--- trunk/boost/asio/local/stream_protocol.hpp	(original)
+++ trunk/boost/asio/local/stream_protocol.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -72,8 +72,10 @@
   /// The UNIX domain acceptor type.
   typedef basic_socket_acceptor<stream_protocol> acceptor;
 
+#if !defined(BOOST_NO_IOSTREAM)
   /// The UNIX domain iostream type.
   typedef basic_socket_iostream<stream_protocol> iostream;
+#endif // !defined(BOOST_NO_IOSTREAM)
 };
 
 } // namespace local

Modified: trunk/boost/asio/read.hpp
==============================================================================
--- trunk/boost/asio/read.hpp	(original)
+++ trunk/boost/asio/read.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -170,6 +170,8 @@
 std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers,
     CompletionCondition completion_condition, boost::system::error_code& ec);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Attempt to read a certain amount of data from a stream before returning.
 /**
  * This function is used to read a certain number of bytes of data from a
@@ -274,6 +276,8 @@
 std::size_t read(SyncReadStream& s, basic_streambuf<Allocator>& b,
     CompletionCondition completion_condition, boost::system::error_code& ec);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 /**
  * @defgroup async_read boost::asio::async_read
@@ -413,6 +417,8 @@
 void async_read(AsyncReadStream& s, const MutableBufferSequence& buffers,
     CompletionCondition completion_condition, ReadHandler handler);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Start an asynchronous operation to read a certain amount of data from a
 /// stream.
 /**
@@ -516,6 +522,8 @@
 void async_read(AsyncReadStream& s, basic_streambuf<Allocator>& b,
     CompletionCondition completion_condition, ReadHandler handler);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 
 } // namespace asio

Modified: trunk/boost/asio/read_at.hpp
==============================================================================
--- trunk/boost/asio/read_at.hpp	(original)
+++ trunk/boost/asio/read_at.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -186,6 +186,8 @@
     boost::uint64_t offset, const MutableBufferSequence& buffers,
     CompletionCondition completion_condition, boost::system::error_code& ec);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Attempt to read a certain amount of data at the specified offset before
 /// returning.
 /**
@@ -305,6 +307,8 @@
     boost::uint64_t offset, basic_streambuf<Allocator>& b,
     CompletionCondition completion_condition, boost::system::error_code& ec);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 /**
  * @defgroup async_read_at boost::asio::async_read_at
@@ -449,6 +453,8 @@
     boost::uint64_t offset, const MutableBufferSequence& buffers,
     CompletionCondition completion_condition, ReadHandler handler);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Start an asynchronous operation to read a certain amount of data at the
 /// specified offset.
 /**
@@ -558,6 +564,8 @@
     boost::uint64_t offset, basic_streambuf<Allocator>& b,
     CompletionCondition completion_condition, ReadHandler handler);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 
 } // namespace asio

Modified: trunk/boost/asio/read_until.hpp
==============================================================================
--- trunk/boost/asio/read_until.hpp	(original)
+++ trunk/boost/asio/read_until.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -18,8 +18,13 @@
 #include <boost/asio/detail/push_options.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
-#include <cstddef>
 #include <boost/config.hpp>
+#include <boost/asio/detail/pop_options.hpp>
+
+#if !defined(BOOST_NO_IOSTREAM)
+
+#include <boost/asio/detail/push_options.hpp>
+#include <cstddef>
 #include <boost/regex.hpp>
 #include <boost/type_traits/is_function.hpp>
 #include <boost/type_traits/remove_pointer.hpp>
@@ -836,6 +841,8 @@
 
 #include <boost/asio/impl/read_until.ipp>
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 #include <boost/asio/detail/pop_options.hpp>
 
 #endif // BOOST_ASIO_READ_UNTIL_HPP

Modified: trunk/boost/asio/streambuf.hpp
==============================================================================
--- trunk/boost/asio/streambuf.hpp	(original)
+++ trunk/boost/asio/streambuf.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -19,6 +19,8 @@
 
 #include <boost/asio/basic_streambuf.hpp>
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 namespace boost {
 namespace asio {
 
@@ -28,6 +30,8 @@
 } // namespace asio
 } // namespace boost
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 #include <boost/asio/detail/pop_options.hpp>
 
 #endif // BOOST_ASIO_STREAMBUF_HPP

Modified: trunk/boost/asio/write.hpp
==============================================================================
--- trunk/boost/asio/write.hpp	(original)
+++ trunk/boost/asio/write.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -169,6 +169,8 @@
 std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers,
     CompletionCondition completion_condition, boost::system::error_code& ec);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Write all of the supplied data to a stream before returning.
 /**
  * This function is used to write a certain number of bytes of data to a stream.
@@ -279,6 +281,8 @@
 std::size_t write(SyncWriteStream& s, basic_streambuf<Allocator>& b,
     CompletionCondition completion_condition, boost::system::error_code& ec);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 /**
  * @defgroup async_write boost::asio::async_write
@@ -411,6 +415,8 @@
 void async_write(AsyncWriteStream& s, const ConstBufferSequence& buffers,
     CompletionCondition completion_condition, WriteHandler handler);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Start an asynchronous operation to write all of the supplied data to a
 /// stream.
 /**
@@ -510,6 +516,8 @@
 void async_write(AsyncWriteStream& s, basic_streambuf<Allocator>& b,
     CompletionCondition completion_condition, WriteHandler handler);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 
 } // namespace asio

Modified: trunk/boost/asio/write_at.hpp
==============================================================================
--- trunk/boost/asio/write_at.hpp	(original)
+++ trunk/boost/asio/write_at.hpp	2010-01-06 07:27:05 EST (Wed, 06 Jan 2010)
@@ -182,6 +182,8 @@
     boost::uint64_t offset, const ConstBufferSequence& buffers,
     CompletionCondition completion_condition, boost::system::error_code& ec);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Write all of the supplied data at the specified offset before returning.
 /**
  * This function is used to write a certain number of bytes of data to a random
@@ -303,6 +305,8 @@
     basic_streambuf<Allocator>& b, CompletionCondition completion_condition,
     boost::system::error_code& ec);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 /**
  * @defgroup async_write_at boost::asio::async_write_at
@@ -440,6 +444,8 @@
     boost::uint64_t offset, const ConstBufferSequence& buffers,
     CompletionCondition completion_condition, WriteHandler handler);
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 /// Start an asynchronous operation to write all of the supplied data at the
 /// specified offset.
 /**
@@ -545,6 +551,8 @@
     basic_streambuf<Allocator>& b, CompletionCondition completion_condition,
     WriteHandler handler);
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 /*@}*/
 
 } // namespace asio