[fpc-pascal] INVALID_SOCKET constant not defined for Linux
Michael Van Canneyt
michael at freepascal.org
Tue Mar 28 12:19:37 CEST 2017
On Tue, 28 Mar 2017, LacaK wrote:
> I am porting application from Windows to Linux. I use Sockets unit.
> There is defined on Windows (and also on BeOS, FreeBSD, OS2):
> INVALID_SOCKET = TSocket(Not 0); // or -1
> SOCKET_ERROR = -1;
> But not for Linux. Does it means, that result of unsuccessfull call to
> Sockets.FPSocket can be other than -1 ?
> (in fcl-net is used test for -1 to check invalid socket so I think, that
> it is crossplatform ... if yes why isn't INVALID_SOCKET defined also for
> Linux in RTL?)
Because we don't want to pollute the unix units with windows-isms.
If it is a POSIX defined constant, we can add it, but if it is not:
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