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From: qwerty@drutx.UUCP (JonesBD)
Newsgroups: net.unix-wizards
Subject: Re:  is "extern" ambiguous
Message-ID: <140@drutx.UUCP>
Date: Fri, 6-Apr-84 12:37:39 EST
Article-I.D.: drutx.140
Posted: Fri Apr  6 12:37:39 1984
Date-Received: Sat, 7-Apr-84 05:34:08 EST
References: <441@sri-arpa.UUCP>, <257@basser.UUCP>
Organization: AT&T Information Systems Laboratories, Denver
Lines: 13

I would take exception to your statement that

	extern int i;

	and

	int i;

are equivalent, in that the first declaration reserves no storage for
the variable 'i', while the second declaration does reserve storage
for the variable 'i'.  The extern declaration tells the compiler
that storage for the variable 'i' will be allocated in another module.