Path: utzoo!attcan!uunet!auspex!guy
From: guy@auspex.UUCP (Guy Harris)
Newsgroups: comp.lang.c
Subject: Re: Do you have to cast void pointers when dereferencing them?
Keywords: (With ANSI C)
Message-ID: <749@auspex.UUCP>
Date: 17 Dec 88 22:46:11 GMT
References: <2414@ssc-vax.UUCP> <15012@mimsy.UUCP> <3050@arcturus>
Reply-To: guy@auspex.UUCP (Guy Harris)
Organization: Auspex Systems, Santa Clara
Lines: 17


 >My assumption (about the dbANS) comes from the understanding that
 >different pointers can have different representations (on some machines).
 >To say that pointer_of_one_type = pointer_of_another_type is legal, the
 >code must know the type of the lvalue to put the rvalue into the proper
 >representation.  Is this not true?

Yes, it's true, and the compiler *does* know the type of the lvalue, so
it can generate code to do the implicit conversion properly.  Why is
this any different from

	int foo;
	float bar;

	bar = foo;

which also causes an implicit conversion from "int" to "float"?