Mail Archives: cygwin/1999/05/24/13:51:57
--- Charles Wilson <cwilson AT ece DOT gatech DOT edu> wrote:
> Earnie Boyd wrote:
> <snip>
>
> > Hi Chuck,
> >
> > I've seen this when I have a pointer reference that isn't being referenced
> > correctly. Perhaps a prototype is incorrect or not specified. Perhaps you
> > have a pointer becoming an integer or an integer becoming a pointer, either
> way
> > you're in trouble.
> >
> > Use the -Wall switch on the compilation and don't ignore the warnings. If
> it
> > has to do with a pointer, it's an ERROR not a WARNING.
>
> Okay, I tried this:
> gcc -Wall -c smain.c ===> no errors
> gcc -Wall -c gaaout.c ===> a few errors having to do with a return (no
> args)
> in a function that isn't supposed to return void. After I fixed 'em,
>
> gcc -Wall -c gaaout.c ===> no errors
> gcc -o smain smain.o gaaout.o ===> no errors
>
> execute `smain' ==> core dump. sigh.
How about referencing memory location zero due to a NULL pointer reference?
This will always SIGSEGV.
BTW, Mumit always suggests using Purify or ElectricFence to check the memory
allocation. I've often suggested using the -lmmalloc library.
===
"Earnie Boyd" <mailto:earnie_boyd AT yahoo DOT com>
CYGWIN RELATED HELP:
DOCUMENTATION: <http://sourceware.cygnus.com/cygwin/docs.html>
DLLHELP: <http://www.xraylith.wisc.edu/~khan/software/gnu-win32/>
ARCHIVE SEARCH: <http://www.delorie.com/archives/> OR
<http://www.eGroups.com/list/gnu-win32/>
_____________________________________________________________
Do You Yahoo!?
Free instant messaging and more at http://messenger.yahoo.com
--
Want to unsubscribe from this list?
Send a message to cygwin-unsubscribe AT sourceware DOT cygnus DOT com
- Raw text -