Hello all, At work, I need to create a Excel sheet containing certain more complex functions. I tried to use only VBA, but I released I will more productive if I could use a DLL writen in Pascal for the heavier code.
Let see this DLL: library test; {$mode objfpc}{$H+} function concatenate(name: string): string; cdecl; begin result := 'Freepascal ' + name; end; function first(names: array of string):string; cdecl; // Warning: cdecl'ared functions have no high parameter begin result := names[0]; end; exports concatenate; first; end. The compiler also raised this error: "test.pas(10,1) Fatal: Internal error 201003031". I don't know what I am doing wrong. But actually, the reason of my message started from another point. Freepascal codes works with strings as usual. DLLs works with pchar. I could have declared the functions as the following: function concatenate(name: pchar): pchar; cdecl; function first(names: array of pchar): pchar; cdecl; In the body of the functions, I would treat the conversions from pchar to string and from string to pchar again. But, when I used "cdecl", am I making this conversion automatically? Is there a compilation switch that allows me to write strings and the compiled code having correctly treated the allocations and disallocation of strings? Suppose this VBA code: public declare function concatenate lib "test" (name as string) as string Is this the correct way to write the called function in Freepascal? function concatenate(name: string): string; cdecl; begin result := 'Freepascal ' + name; end; -- Luciano de Souza _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal