Hi, Under Linux and Windows I have the following code which works fine.
var LThreadID: string; begin FmtStr(LThreadID, '%.4d', [GetCurrentThreadID]); Under FreeBSD (64-bit) that failed with a EConvertError in the unit tests and the compiler gave a message of 'Invalid argument index in format "%.4d"' Navigating the code to see how TThreadID is defined, I found this for FreeBSD. TThreadRec = record end; TThreadID = ^TThreadRec; So TThreadID is just a pointer to a record structure. Apparently getting a "real" thread ID/number is not as easy as under Linux. [Info from Google searches]. Under FreeBSD it seems that naming each thread with a string value is a more supported solution. I'm not so fussed about the exact ID per thread, so the pointer value will be fine. Windows uses a THandle and Linux uses a PtrUInt as the types for TThreadID. So would it be safe if I did the following in my code? For the Windows, Linux and FreeBSD platforms at least. FmtStr(LThreadID, '%.4d', [PtrUInt(GetCurrentThreadID)]); I've tested the PtrUInt() cast under FreeBSD, Linux and Windows, and it seems to work fine. BTW: This code is only used to supply a thread id/value to a logging function (file, GUI, console etc) to help with debugging, or at least show which thread wrote what debug log entries. So it's not critical code. Regards, - Graeme - -- fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal http://fpgui.sourceforge.net/ _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
