From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Subject: Re: Assignment  make pointers
Date: Mon, 13 Dec 2004 11:10:11 +0100
Message-ID: <20041213101011.GO16958@lug-owl.de>
References: <20041213_100432_025782.r_zaca@ig.com.br>
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On Mon, 2004-12-13 08:04:32 -0200, r_zaca <r_zaca@ig.com.br>
wrote in message <20041213_100432_025782.r_zaca@ig.com.br>:
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>   If you take a look in "man 3 basename", you'll see that basename functi=
on=20
> just returns a pointer to a char. In the case above you need to "cast" th=
e=20
> pointer returned to be of type int.=20
>   Like: prog_ptr =3D (int *) basename (argv[0]);=20

Don't do that. Usually, you can write even quite large programs without
using casts at all. Most of the time, a cast points to spots in your
programs that are badly designed from the type of your variables point
of view. If your variables are of senseful types and obey a well-thought
structure (like using enums and unions instead of #defines and casts),
you usually don't need to cast.

Also, I usually suggest to compile code with "-Wall" -- that'll show you
probably lots of odd constructs that should be written differently (or
using proper types).

MfG, JBG

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