string(1) to char?_(re)

Thu, 30 Nov 1995 11:40:49 -0500

Jukka Virtanen wrote:
> 
> > > 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 ];
> >
> > I think, this is Standard Pascal, nothing special.  At least, it is
> > common between UCSD, Borland and GNU Pascal.
> 
>         In extended pascal it is also allowed to assign a string
>         to a char if the length of the string is 1, which is the case
>         here.

you are welcome :)

but note that i _can_ do the assignment via:
   
   readstr(substr(s,2,1),ch);

> 
>         I think you found a bug in gpc, thanks for the report :-)
> 
>                                                 Juki
>                                                 jtv@hut.fi

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

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