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exit() o return()
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adriano meis  
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 More options Jul 3 2008, 1:37 pm
Newsgroups: it.comp.lang.c
From: "adriano meis" <umiumi...@invalid.it>
Date: Thu, 03 Jul 2008 17:37:38 GMT
Local: Thurs, Jul 3 2008 1:37 pm
Subject: exit() o return()
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salve,
ho win98 ed il dev c++.
quando c'è la possibilità che si verifichi un errore prevedibile dal
programmatore (con le
 malloc, fopen(), passaggio prametri al main), di solito il
programmatore C inserisce una printf("errore").

A volte essa è seguita da exit(1), altre da return(-1).

Ora io chiedo: cosa cambi nei due casi? E' indifferente? Quando è meglio
l'uno al posto
dell'altro?

grazie,
adriano


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camillo  
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 More options Jul 3 2008, 7:14 pm
Newsgroups: it.comp.lang.c
From: camillo <c...@g.c>
Date: Thu, 03 Jul 2008 23:14:44 GMT
Local: Thurs, Jul 3 2008 7:14 pm
Subject: Re: exit() o return()
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"adriano meis" <umiumi...@invalid.it>:

> Ora io chiedo:

un
manuale
sul
c

hai chiesto questo.


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?manu*  
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 More options Jul 9 2008, 4:12 pm
Newsgroups: it.comp.lang.c
From: ?manu* <paol...@NO.math.unifi.SPAM.it>
Date: Wed, 09 Jul 2008 22:12:37 +0200
Local: Wed, Jul 9 2008 4:12 pm
Subject: Re: exit() o return()
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adriano meis wrote:
> A volte essa è seguita da exit(1), altre da return(-1).

> Ora io chiedo: cosa cambi nei due casi? E' indifferente? Quando è meglio
> l'uno al posto
> dell'altro?

exit lo puoi fare da qualunque punto del codice. Il return(-1) potrà
essere utile allo scopo solo se ti trovi nel main.

E.


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