string(1) to char?_(re)

Thu, 30 Nov 1995 11:12:36 -0500

Peter Gerwinski wrote:
> 
> Hello, Thomas; hello, GPC-list!
> 
> According to Thomas Dunbar:
> >
> > can one convert a string of length one into a char?
> >
> > ie the below wont work:
> >
> > program t(input,output);
> > var
> >   ch:char;
> >    s:string(10);
> > begin
> >    s:='teststring';
> >    writeln(substr(s,2,1));
> >    ch:=substr(s,2,1);
> >    writeln(ord(ch));
> > end.
> 
> Yes, one can.  The correct assignment reads
> 
>   ch:= s [ 2 ];


thanks, Peter.

i also find that readstr(substr(s,2,1),ch); works 
but the packed array way is simpler.

  thomas

> 
> I think, this is Standard Pascal, nothing special.  At least, it is
> common between UCSD, Borland and GNU Pascal.
> 
> In the above sense, a string actually *is* a packed array of char.
> 
> Yours,
> 
>     Peter
> 
> --------------------------------------------------------------------------------
> Dipl. Phys. Peter Gerwinski
> Fachbereich Physik
> Universitaet-GH Essen                   Phone:  +49-201-183-2763
> D-45117 Essen                           Fax:    +49-201-183-2120
> Germany                                 e-mail: pege@mail.theo-phys.uni-essen.de
> --------------------------------------------------------------------------------

-- 
Thomas Dunbar    540 231-3938 (fax 3714)   http://gserver.grads.vt.edu/

Thomas Dunbar (tdunbar@gserver.grads.vt.edu)