RPosEx param Offs has type Cardinal, why not SizeInt

[AlexTP]

Code: Pascal  [Select][+][-]

1. function RPosEx(C: char; const S: AnsiString; offs: cardinal): SizeInt;
2.  
3. var I   : SizeUInt;
4.     p,p2: pChar;
5.  
6. Begin
7.  I:=Length(S);
8.  If (I<>0) and (offs<=i) Then
9.    begin
10.      p:=@s[offs];
11.      p2:=@s[1];
12.      while (p2<=p) and (p^<>c) do dec(p);
13.      RPosEx:=(p-p2)+1;
14.    end
15.   else
16.     RPosEX:=0;
17. End;

if we change type of Offs to SizeInt, it will be more logical.

[Zvoni]

The only fishy thing i see with your proposal, is that "offs" is used as an Index in Line 10.
SizeInt allows negative Values, which doesn't make sense in the context of accessing a string's characters by Index