t_id
193
t_adddate
2003/10/03
t_result
0
t_knownrunerror
0
tr_id | run | tr_ok | tr_skip | tr_result |
---|---|---|---|---|
950221305 | 1015714 | True | False | Successfully run |
Record count: 1
{ Variation without virtual classes : no VMT } { here sizeof directly returns a constant value } {$static on} type pbaseclass = ^tbaseclass; pderivedclass = ^tderivedclass; tbaseclass = object x : longint; {constructor init;} function getsize : longint; static; function getsize2 : longint; procedure check_size; {virtual;} procedure static_check_size; static; procedure check_normal; procedure check_static; static; {procedure check_virtual; virtual;} {destructor done; virtual;} end; tderivedclass = object(tbaseclass) y : longint; procedure check_size; {virtual;} end; const has_error : boolean = false; expected_size_for_tbaseclass = {sizeof(pointer) + }sizeof(longint); expected_size_for_tderivedclass = {sizeof(pointer) +} 2*sizeof(longint); var basesize : longint; derivedsize : longint; {constructor tbaseclass.init; begin end; destructor tbaseclass.done; begin end; } function tbaseclass.getsize : longint; begin getsize:=sizeof(self); end; function tbaseclass.getsize2 : longint; begin getsize2:=sizeof(self); end; procedure tbaseclass.check_size; begin if sizeof(self)<>getsize then begin Writeln('Compiler creates garbage'); has_error:=true; end; if sizeof(self)<>getsize2 then begin Writeln('Compiler creates garbage'); has_error:=true; end; end; procedure tbaseclass.static_check_size; begin if sizeof(self)<>getsize then begin Writeln('Compiler creates garbage'); has_error:=true; end; end; procedure tbaseclass.check_normal; begin check_size; static_check_size; end; procedure tbaseclass.check_static; begin {check_size;} static_check_size; end; {procedure tbaseclass.check_virtual; begin check_size; static_check_size; end;} procedure tderivedclass.check_size; begin Writeln('Calling tderived check_size method'); inherited check_size; end; var cb : tbaseclass; cd : tderivedclass; c1 : pbaseclass; begin {cb.init; cd.init;} new(c1); basesize:=sizeof(cb); Writeln('Sizeof(cb)=',basesize); if basesize<>expected_size_for_tbaseclass then Writeln('not the expected size : ',expected_size_for_tbaseclass); derivedsize:=sizeof(cd); Writeln('Sizeof(ct)=',derivedsize); if derivedsize<>expected_size_for_tderivedclass then Writeln('not the expected size : ',expected_size_for_tderivedclass); cb.check_size; cd.check_size; c1^.check_size; cb.static_check_size; cd.static_check_size; c1^.static_check_size; tbaseclass.static_check_size; tderivedclass.static_check_size; tbaseclass.check_static; tderivedclass.check_static; cb.check_normal; cb.check_static; cd.check_normal; cd.check_static; if has_error then begin Writeln('Error with object methods'); halt(1); end; end.