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From: lwh@romp.UUCP (lwh)
Newsgroups: net.lang.c
Subject: Casting a postdecrement operand
Message-ID: <114@romp.UUCP>
Date: Fri, 23-May-86 16:01:00 EDT
Article-I.D.: romp.114
Posted: Fri May 23 16:01:00 1986
Date-Received: Sun, 25-May-86 18:10:57 EDT
Organization: IBM Corp. (Engineering Systems Products), Austin, TX
Lines: 20

My version of pcc on the IBM RT PC allows the following expression:


		struct abc { char d[500]; };
		struct cba { char e[200]; };
		struct cba *cbap;

		((struct abc *)cbap)++;


to increment cbap by 500. It appears that the ANSI standard doesn't say
anything about the legality of this syntax.  

Does anyone have any experience or opinions on this subject?


Larry Henson
{ihnp4 | seismo | gatech}!ut-sally!im4u!esc-bb!romp!lwh

The standard disclaimer: No one , not even me, is responsible.