Hi,

Are strings not zero terminated? I have a function declared:

function myfunc(s :String; i: Integer):String;

When going through the string "s" with asm instructions, it does not seem to have a zero byte at the end. Is this normal or something is not OK (maybe now with utf8 strings as defaults it is not there any longer)?

I got around this by doing a StrPCopy into a buffer of bytes, so just asking.

Thanks for any feedback

strings are always null-terminated, for delphi compatibility.

zero char is located at s[length(s)+1], but should never accessed directly.

Are you sure that string = ansistring and not string = shortstring. Compile with
{$mode delphi} (=-MDelphi}, if porting from Delphi, else compile with {$H$} (=-sh).

Vincent

Are strings not zero terminated?

They are not: a #0 is perfectly allowable character in a (long) string. That is why you can use strings for storing any kind of byte stream. But they are: a #0 is automatically added at s[length(s)+1];

But accessing the terminating via string functions is erroneous. But you can access it with

s: string
l: integer;
p: PChar;
c: char;
s := '123';
l := length(s);
p := pchar(s);
inc (p,l);
c := p^;

- Michael