Path: utzoo!attcan!uunet!know!zaphod.mps.ohio-state.edu!julius.cs.uiuc.edu!apple!stevec
From: stevec@Apple.COM (Steve Christensen)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Why am I getting bus-error in think C debugger?
Message-ID: <46696@apple.Apple.COM>
Date: 19 Nov 90 17:46:05 GMT
References: <7022@vax1.acs.udel.EDU>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 19

bach@vax1.udel.edu (Baskaran Subramaniam) writes:
>I am new to programming in Think C.  Could someone tell me what a bus-error
>means?  When I try to step through a test program (which runs without
>giving any error outside the debugger) I get a bus-error. Why?     

You get a bus error when a program references an "unused" address, i.e., one
that doesn't contain RAM, ROM, or an I/O device.  You may have an uninitialized
pointer or handle somewhere.  Or perhaps you're not checking that a returned
handle or pointer is valid before you use it.  just a guess...

steve

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  whoami?     Steve Christensen
  snail:      Apple Computer, 20525 Mariani Ave, MS-81CS, Cupertino, CA 95035
  internet:   stevec@apple.com
  AppleLink:  stevec
  CompuServe: 76174,1712