mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-21 23:09:31 +02:00
47 lines
1.5 KiB
ObjectPascal
47 lines
1.5 KiB
ObjectPascal
{ %TARGET=win32,win64,wince,linux,android }
|
|
program tsafecall2;
|
|
|
|
{$mode objfpc}{$H+}
|
|
|
|
uses
|
|
Classes, SysUtils;
|
|
|
|
// On Windows, safecall should behave like a stdcall, so it can be used for COM/
|
|
// ActiveX. On Unix systems, it should be cdecl so that it could be used with
|
|
// xpcom.
|
|
|
|
function SafecallProcedureAlias(AParam1,AParam2: integer):HRESULT; {$IFDEF windows}stdcall{$ELSE}cdecl{$ENDIF}; [external name '_SAFECALLPROCEDURE'];
|
|
procedure SafecallProcedure(AParam1,AParam2: integer); safecall; [public, alias: '_SAFECALLPROCEDURE'];
|
|
begin
|
|
if (AParam1<>$123456) or (AParam2<>$654321) then
|
|
halt(1);
|
|
end;
|
|
|
|
function SafecallFunctionAlias(AParam1,AParam2: integer; out _result: string):HRESULT; {$IFDEF windows}stdcall{$ELSE}cdecl{$ENDIF}; [external name '_SAFECALLFUNCTION'];
|
|
function SafecallFunction(AParam1,AParam2: integer): string; safecall; [public, alias: '_SAFECALLFUNCTION'];
|
|
begin
|
|
if (AParam1<>$123456) or (AParam2<>$654321) then
|
|
halt(2)
|
|
else
|
|
result := 'hello';
|
|
end;
|
|
|
|
var s: string;
|
|
|
|
begin
|
|
try
|
|
// The call is in a try..finally block. This is to test if the stack is
|
|
// cleaned succesfully after the call. Without the try..finally it could
|
|
// be that the stack is corrupted, but that this does not lead to any
|
|
// detectable problems (exception)
|
|
if SafecallProcedureAlias($123456,$654321) <> 0 then
|
|
halt(11);
|
|
if SafecallFunctionAlias($123456,$654321,s) <> 0 then
|
|
halt(12);
|
|
if s<>'hello' then halt(13);
|
|
finally
|
|
writeln('Ok');
|
|
end;
|
|
end.
|
|
|