[fpc-pascal] String concatenation failure (again)

Jürgen Hestermann juergen.hestermann at gmx.de
Wed Aug 3 15:16:15 CEST 2016

Am 2016-08-02 um 20:12 schrieb José Mejuto:
 > Check the length of the string I think you have a NULL char at the end of every string, so only the first one (up to #00 char) is displayed.

Yes, you are right.
When I change the code

for i := Low(Liste) to High(Liste) do
    S := S+Liste[i]+LineEnding;


for i := Low(Liste) to High(Liste) do
    S := S+pchar(Liste[i])+LineEnding;

then it works okay.
The Win-API call retrieves the ending null byte too
so it ends up in my array of strings.

Strange is that it already worked with FPC 2.x.
Of course I had to convert UTF16 to UTF8 manually
but I don't have the old code anymore.
It could be that I had to use pchar in that case too which
would explain why it worked before (I then removed
"unneccessary" convertion routines and it seems
I removed the pchar calls too).

More information about the fpc-pascal mailing list