[fpc-devel]Hints and Warning enabled and disabled

[Michael.VanCanneyt at Wisa.be]

On Wed, 22 Sep 2004, Tomas Hajny wrote:

> From:           	Darek Mazur <darekm at emadar.com>
> To:             	fpc-devel at lists.freepascal.org
> Subject:        	Re: [fpc-devel]Hints and Warning enabled and disabled
> Date sent:      	Wed, 22 Sep 2004 18:57:30 +0200
> 
> > U¿ytkownik Michael Van Canneyt napisa³:
> > > 
> > > On Wed, 22 Sep 2004, Darek Mazur wrote:
> > > 
> > >>Hi
> > >>Is it possible to enable and disable warning and hints receiving
> > >>from compiler, but not in command line only in directives in program
> > >>like {$HINT ON}{$HINT OFF}
> > > 
> > > It is
> > > {$HINTS ON}
> > 
> > Its not work for me
> > example:
> > 
> > program testapp
> > 
> > uses
> >      classes,
> > {$HINTS OFF}
> >     buttons
> > {$HINTS ON}
> > ;
> > 
> > 
> > begin
> >    writeln('test');
> > end.
> > 
> > Compiler hint
> > testapp.pp(11,7) Hint: Unit "BUTTONS" not used in TESTAPP
> 
> It looks OK to me - the listed hint is only issued at the end of 
> testapp.pp parsing, and hints are turned on at that place?

Exactly. 
Just use hints off right before the final end.

program testapp

uses
    classes,
    buttons;

begin
  Writeln('test');
{$hints off}
end.