Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!mailrus!uwmcsd1!uxc!uxc.cso.uiuc.edu!a.cs.uiuc.edu!bradley!brian
From: brian@bradley.UUCP
Newsgroups: comp.lang.c
Subject: Re: lint on malloc calls
Message-ID: <9900007@bradley>
Date: 10 Sep 88 23:43:00 GMT
References: <39617@linus.UUCP>
Lines: 35
Nf-ID: #R:linus.UUCP:39617:bradley:9900007:000:1090
Nf-From: bradley.UUCP!brian    Sep 10 18:43:00 1988


> /* Written  3:12 pm  Sep  8, 1988 by jgb@linus.UUCP */

	[ edited for brevity ]

> 
> 	entry *nextentry;
> 
> 	nextentry = (entry *) malloc(sizeof(entry));
> 
> Running lint -bach yields:
> 
> 	phone.c(61): warning: illegal pointer combination
> 	phone.c(61): warning: possible pointer alignment problem
> 
> What am I doing wrong?  Doesn't K+R suggest this on pp. 133-134 (at
> the end of section 6.5)?

  You probably didn't tell lint or cc what malloc() returns, so it
assumed int malloc()... The warning is given because you have done
an explicit cast of a pointer to an integer. Just add the following
line to either the top of your program or the top of your function:

extern char *malloc();

  Or, if you compiler supports void*

extern void *malloc();

...............................................................................

  When the going gets weird, the weird turn pro.

  Brian Michael Wendt       UUCP: {cepu,ihnp4,uiucdcs,noao}!bradley!brian
  Bradley University        ARPA: cepu!bradley!brian@seas.ucla.edu
  (309) 677-2230            ICBM: 40 40' N  89 34' W