Mega Code Archive
How to Get the reference count of an AnsiString
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Title: How to Get the reference count of an AnsiString
function GetAnsistringRefcount(const S: string): Cardinal;
asm
or eax, eax
jz @done
sub eax, 8
mov eax, dword ptr [eax]
@done:
end;
procedure TForm1.Button1Click(Sender: TObject);
var
S1, S2: string;
begin
memo1.lines.Add(Format('Refcount at start: %d',
[GetAnsistringRefcount(S1)]));
S1 := StringOfChar('A', 10);
memo1.lines.Add(Format('Refcount after assignment: %d',
[GetAnsistringRefcount(S1)]));
S2 := S1;
memo1.lines.Add(Format('Refcount after S2:=S1: %d',
[GetAnsistringRefcount(S1)]));
S2 := S1 + S2;
memo1.lines.Add(Format('Refcount after S2:=S1+S2: %d',
[GetAnsistringRefcount(S1)]));
end;
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