Path: utzoo!utgpu!watmath!iuvax!rutgers!uwvax!tank!s170
From: s170@tank.uchicago.edu (harmon g washington)
Newsgroups: comp.sys.mac.programmer
Subject: Seemingly equivalent code fragments in C
Keywords: C pointers Lightspeed int
Message-ID: <4882@tank.uchicago.edu>
Date: 7 Aug 89 19:35:26 GMT
Organization: University of Chicago
Lines: 36

In programming the Macintosh apple menu I tried to create the Apple symbol usingthe following code:
	void MenuInits()
{
	int *bittenApple;
	
	*bittenApple = 0x0114;  	/* create Pascal string 1 byte long */
	AppleMenu = NewMenu(ApplID, bittenApple);
	.
	.
} /* menuinits() */

THIS CODE DID NOT WORK!  Instead of the Apple logo I got a random string of junkIt seemed it should have work: defining a pointer to an int; and then defining the item it points to.  Now the following fragment of code DID work:
	void MenuInits()
{
	int *bittenApple, xx;
	xx = 0x0114;
	bittenApple = &xx;
	AppleMenu = NewMenu(ApplID, bittenApple);
	.
	.
} /* menuinits() */

the following code also worked:
void MenuInits()
{
	int bittenApple;

	bittenApple = 0x0114;
	ApplMenu = NewMenu(ApplID, &bittenApple);
	.
	.
} /* menuinits() */
where #define ApplID 1
and MenuHandle ApplMenu;
I would thind the three code fragments are equivalent ways of doing the same thing in C.  Why did not the first code fragment work?
	--- Harmon Washington