[fpc-pascal] Creating text files with TFileStream

[Vincent Snijders]

Graeme Geldenhuys schreef:
> 2009/10/23 Gerard N/A <gerardusmercator at gmail.com>:
>> Could it be that the length indicator bytes of the string are written
>> to the stream?
> 
> Ah, looking at the .WriteAnsiString() implementation, you seem to be
> 100% correct.
> 
>   Procedure TStream.WriteAnsiString (const S : String);
>   Var L : Longint;
>   begin
>     L:=Length(S);
>     WriteBuffer (L,SizeOf(L));
>     WriteBuffer (Pointer(S)^,L);
>   end;
> 
> 
> That function is then very deceiving - by doing something extra to
> what the method name suggests. Why is the writing of the string length
> as a prefix needed?

Otherwise you cannot read it back. :-)

Vincent