[fpc-pascal]Exporting vars

[Michael.VanCanneyt at Wisa.be]

On Fri, 24 Aug 2001, Mauricio Stefani wrote:

> Hello :-)
>
> Please, have anybody ever tryed to export variables to a source in C?
> I couldn't get it to work with the cvar modifier... The compiler shows me an
> error message:
>
> test : integer; cvar;
>
> Error line ... : expecting : found ;
>
> Is that right? Please, what's the mistake?

This is not right; You are probably using {$mode tp} or the -So switch;
this causes that error to appear (cvars are not allowed in -So mode)

The following compiles fine with no mode set:

unit testv;

Interface

Var
  c : Pchar; cvar;

Implementation

begin
  C:='Some string';
end.

and it links perfectly with

#include <stdio.h>

extern char * c;

int main () {
  printf("%s",c);
  return 0;
}

The output is (null), since the initialization section was not called from
the C program, so this is normal.

Michael.