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From: hazzah@acf3.NYU.EDU (Ali Hazzah)
Newsgroups: comp.lang.c
Subject: C pointer to a function
Message-ID: <501@acf3.NYU.EDU>
Date: Sat, 26-Sep-87 11:16:30 EDT
Article-I.D.: acf3.501
Posted: Sat Sep 26 11:16:30 1987
Date-Received: Sun, 27-Sep-87 10:46:43 EDT
Distribution: na
Organization: New York University
Lines: 35
Keywords: static pointer function


	Consider the function foo, defined as:

	static char *foo(name)
	char *name;
	{
		static char path[20];
		char *strcat();

		...

		return(strcat(path, name);
	}

	and invoked in the following manner:

	callfoo()
	char *name;
	{
	char *path, *foo();

	...

	path = foo(name);

	...

	}

	The question here concerns the scope of the pointer to
	the function foo.
	Specifically, why might the pointer be defined as static?
	(An example of this can be found on p.23 of Marc Rochkind's
	book, "Advanced Unix Programming", 4th printing.)