id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
5042	error: redefinition of 'size_t boost::asio::detail::calculate_hash_value(SOCKET)'	Vladislav <phprus@…>	chris_kohlhoff	"Hello!

I am using compiler i686-pc-mingw32-g++ from openSUSE repository:
{{{
phprus@notebook-hp6730b:/usr/lib> i686-pc-mingw32-g++ -v
Using built-in specs.
COLLECT_GCC=i686-pc-mingw32-g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-pc-mingw32/4.5.2/lto-wrapper
Target: i686-pc-mingw32
Configured with: ../configure --prefix=/usr --bindir=/usr/bin --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=i686-pc-mingw32 --with-gnu-as --with-gnu-ld --verbose --without-newlib --disable-multilib --disable-plugin --with-system-zlib --disable-nls --without-included-gettext --disable-win32-registry --enable-version-specific-runtime-libs --with-sysroot=/usr/i686-pc-mingw32/sys-root --enable-languages=c,c++,fortran,objc,obj-c++ --without-x --enable-hash-synchronization
Thread model: win32
gcc version 4.5.2 (GCC) 
}}}

Boost version 1.44.0

At header-file <boost/asio.hpp> usage there is a compilation error:
{{{
In file included from /usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/detail/reactor_op_queue.hpp:19:0,
                 from /usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/detail/select_reactor.hpp:29,
                 from /usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/detail/reactor.hpp:27,
                 from /usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/detail/win_iocp_socket_service.hpp:35,
                 from /usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/datagram_socket_service.hpp:24,
                 from /usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/basic_datagram_socket.hpp:21,
                 from /usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio.hpp:20,
                 from ********/SimpleClient.cpp:17:
/usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/detail/hash_map.hpp: In function 'size_t boost::asio::detail::calculate_hash_value(SOCKET)':
/usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/detail/hash_map.hpp:46:20: error: redefinition of 'size_t boost::asio::detail::calculate_hash_value(SOCKET)'
/usr/i686-pc-mingw32/sys-root/mingw/include/boost/asio/detail/hash_map.hpp:34:20: error: 'size_t boost::asio::detail::calculate_hash_value(int)' previously defined here
}}}

SOCKET type equal INT_PTR (/usr/i686-pc-mingw32/sys-root/mingw/include/mingw_inc/_socket_types.h)
On win32 INT_PTR equal int (/usr/i686-pc-mingw32/sys-root/mingw/include/basetds.h)

It possible usage boost::enable_if for detect this collision."	Bugs	closed	Boost 1.46.0	asio	Boost 1.44.0	Problem	wontfix		phprus@…