[solved] How can the compile-date be used

[Joanna]

Hi everyone elmar69 asked this in chat. Does anyone know the answer? I’m curious too.

 How can the compile-date be used/displayed from compiled code?

[dseligo]

See this: https://www.freepascal.org/docs-html/prog/progsu41.html#x48-470001.2.41

[cdbc]

Hi
I use it like this:

Code: Pascal  [Select][+][-]

1. if S = 'Start' then
2.   LogSvc.LogLn('<- gui='+memGuiVersion+' - fpc='+{$i %fpcversion%}+' @ '+{$i %date%}+' '+{$i %time%}+' - engine='+engver+' - debug ->');

Where "engver" & "memGuiVersion" are my own variables...
HTH
Regards Benny

[Thaddy]

Benny,
You can also use my version trick for %compilerversion%.
If you are a trunk user, you can determine the patch version.
I am referring to this:

Code: Pascal  [Select][+][-]

1. var
2.   fpcversion:array[0..255] of char; external name '__fpc_ident';
3. begin
4.   writeln(fpcversion);
5. end.

Which prints the real compiler version.

Code: Bash  [Select][+][-]

1. $ /mnt/d/version
2. FPC 3.3.1-15668-ge657d6a07d [2024/05/05] for x86_64 - Linux

This is only helpful for trunk/main users, I guess. But you always get the date that the compiler is compiled. (Not necessary the patch version)

[cdbc]

Hi Thaddy
Cool, thanks, didn't know 'bout this one 
Will come in very handy, as I develop all of my own work in trunk and there, it's nice to know which and when the compiler is from, especially in lieu of the past couple of months' hickups 
I only use my 3.2.2 compiler for examples etc. for this forum...
Regards Benny

[PascalDragon]

You can also use my version trick for %compilerversion%.
If you are a trunk user, you can determine the patch version.
I am referring to this:

Code: Pascal  [Select][+][-]

1. var
2.   fpcversion:array[0..255] of char; external name '__fpc_ident';
3. begin
4.   writeln(fpcversion);
5. end.

The existance of this symbol is not documented and thus must be considered an implementation detail (as I had already told you here). So if you have to mention this, then please also mention that it isn't documented and thus isn't official and thus anyone uses it at their own risk.

(Also this symbol already exists for seven years and thus is also part of the 3.2.x series)

[Thaddy]

Point taken. It is just one of the "Just because I can"....

[Joanna]

Thanks for the answers, I figured it would be something related to compiler directives