[fpc-pascal] Re: WSAGetLastError returns 0 when it shouldn't but I cannot see why

[L]

L wrote:
> Aha.. I changed the by Value parameter to a CONST parameter in the 
> error procedure (Perror).. And this solves the issue..
>
> So something to do with calling by Value within a thread versus a 
> const (pointer?).
>
> I will attach the problem in the bug report previously opened if I can 
> reopen it.
>

http://bugs.freepascal.org/view.php?id=10205

Attached program with problem.

This may be why WriteLn(WsaGetLastError) was causing problems, if 
writeln calls a by value parameter too.