Message: 8 Date: Tue, 19 Dec 2006 20:34:14 +0300 From: ???? ????????? <olegabr@mail.ru> Subject: Re: [boost] [asio] header order dependence with <windows.h> To: boost@lists.boost.org Message-ID: <E1Gwir0-0003QL-00.olegabr-mail-ru@f80.mail.ru> Content-Type: text/plain; charset=koi8-r
Sebastian Redl wrote:
It means that while the issue under discussion is not resolved - asio can not be targeted as a proposal for inclusion into the std. and it leads to the conclusion that it doesn't conform to boost goals. sad...
I disagree. The header order dependency is not something inherent to the ASIO library. If ASIO were to become a standard, then this platform-specific issue would be for the compiler vendor to resolve. For example, MS might have to break back compatibility by not getting the <winsock.h> stuff by default in <windows.h> unless a compiler switch is enabled.
I'm not sure about this. If the library is required to be header-only by design, then it imposes constraints on the implementation, such as vulnerability to header order dependencies. Either asio will need to be insulated against ordering in system headers, or the system headers on all target platforms will need to provide stronger guarantees on being free of such dependencies. A question of immovable objects and irresistible forces. Best Regards, Matthew Herrmann