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78 lines
2.5 KiB
ObjectPascal
78 lines
2.5 KiB
ObjectPascal
{ %target=win32 }
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{ Source provided for Free Pascal Bug Report 3650 }
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{ Submitted by "Sergey" on 2005-02-11 }
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{ e-mail: sergey@michint.kiev.ua }
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// Title: stdcall and variant/record parameters
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// Succeded: dcc32.exe, Delphi6
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// Failed: fpc-1.9.6, fpc-1.9.7
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{$IFDEF FPC}
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{$mode delphi}
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{$C+}
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{$ELSE}
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{$AppType CONSOLE}
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uses Variants;
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{$ENDIF}
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function Test1(guid: TGUID; p1, p2: Pointer): HRESULT; stdcall;
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begin
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Writeln(Integer(Addr(p1))-Integer(Addr(guid)));
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Writeln(Integer(Addr(p2))-Integer(Addr(p1)));
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Assert(Integer(Addr(p1))-Integer(Addr(guid)) = 16, 'bug rec_std (?)');
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// Fixes: compiler/i386/cpupara.pas:141 when s/8/16/
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end;
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function Test2(v: VARIANT; p1, p2: Pointer): HRESULT; stdcall;
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begin
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Writeln(Integer(Addr(p1))-Integer(Addr(v)));
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Writeln(Integer(Addr(p2))-Integer(Addr(p1)));
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Assert(Integer(Addr(p1))-Integer(Addr(v)) = 16, 'bug var_std (?)');
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end;
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function Test1c(guid: TGUID; p1, p2: Pointer): HRESULT; cdecl;
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begin
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Writeln(Integer(Addr(p1))-Integer(Addr(guid)));
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Writeln(Integer(Addr(p2))-Integer(Addr(p1)));
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Assert(Integer(Addr(p1))-Integer(Addr(guid)) = 16, 'bug rec_c (?)');
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end;
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function Test2c(v: VARIANT; p1, p2: Pointer): HRESULT; cdecl;
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begin
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Writeln(Integer(Addr(p1))-Integer(Addr(v)));
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Writeln(Integer(Addr(p2))-Integer(Addr(p1)));
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Assert(Integer(Addr(p1))-Integer(Addr(v)) = 16, 'bug var_c (?)');
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end;
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begin
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Write('SizeOf(TGUID)=', SizeOf(TGUID));
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Writeln(' SizeOf(VARIANT)=', SizeOf(VARIANT));
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Test1(IUnknown, nil, nil); {try "s/nil/@Sin/" - you'll get 'Error while linking'}
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Test2(Null, nil, nil);
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Test1c(IUnknown, nil, nil);
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Test2c(Null, nil, nil);
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end.
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(*
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// Fix for 1.9.7: compiler/i386/cpupara.pas:128 in
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// function ti386paramanager.push_addr_param(varspez:tvarspez;def : tdef;calloption : tproccalloption) : boolean;
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// when
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{ Only vs_const, vs_value here }
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case def.deftype of
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{!} variantdef:
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{!} result:=not(calloption in [pocall_stdcall,pocall_cdecl{,pocall_cppdecl???}]);
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{!} formaldef :
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result:=true;
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recorddef :
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begin
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{ Win32 passes small records on the stack for call by
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value }
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if (target_info.system=system_i386_win32) and
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(calloption in [pocall_stdcall,pocall_cdecl,pocall_cppdecl]) and
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(varspez=vs_value) and
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(def.size<=8{or 16?}) then
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result:=false
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else
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{!} result:=not(calloption in [pocall_stdcall{!},pocall_cdecl,pocall_cppdecl]) and (def.size>sizeof(aint));
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end;
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*)
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