Article View: comp.std.c
Article #4977Re: Initializing a variable in terms of itself
From: James Kanze US/ESC 60/3/141 #407...
Date: Tue, 02 Apr 1996 15:13
Date: Tue, 02 Apr 1996 15:13
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In article <4jpj9l$ik9@cnn.Princeton.EDU> tim@franck (Tim Hollebeek)
writes:
|> Just out of curiosity, is this legal?
|> int main() {
|> int x = x;
|> return 0;
|> }
No, it is undefined behavior, because you are accessing a variable
before having initialized it.
The reference to `x' in the initialization expression is not, per se,
illegal. The variable is declared, and available for use, as soon as
the compiler sees the `=' sign.
--
James Kanze Tel.: (+33) 88 14 49 00 email: kanze@gabi-soft.fr
GABI Software, Sarl., 8 rue des Francs-Bourgeois, F-67000 Strasbourg, France
Conseils, études et réalisations en logiciel orienté objet --
-- A la recherche d'une activité dans une region francophone
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Newsgroups: comp.std.c Path: arc1-ca.pugleaf.net!blackbush.xlink.net!slsv6bt!news From: kanze@lts.sel.alcatel.de (James Kanze US/ESC 60/3/141 #40763) Subject: Re: Initializing a variable in terms of itself In-Reply-To: tim@franck's message of 1 Apr 1996 21:53:57 GMT Message-ID: <KANZE.96Apr2171323@slsvgqt.lts.sel.alcatel.de> Sender: news@lts.sel.alcatel.de Organization: GABI Software, Sarl. References: <4jpj9l$ik9@cnn.Princeton.EDU> Date: 02 Apr 1996 15:13:23 GMT