[Qt-creator] What's the crash?

[Jason H]

Yes!! I wonder why I don't get that anymore?


> Sent: Monday, July 16, 2018 at 10:37 AM
> From: "Nikos Chantziaras" <realnc at gmail.com>
> To: qt-creator at qt-project.org
> Subject: Re: [Qt-creator] What's the crash?
>
> Seems to be working fine here:
> 
>    https://i.imgur.com/OfFSAk5.png
> 
> 
> On 16/07/18 17:05, Jason H wrote:
> > 
> >> There's nothing more the debugger or C++ can do for you here.
> > 
> > But it does at the command line:
> > Process 79112 launched: '/Users/jhihn/Projects/test_crash/a.out' (x86_64)
> > Process 79112 stopped
> > * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_ARITHMETIC (code=EXC_I386_DIV, subcode=0x0)
> >      frame #0: 0x0000000100000fad a.out`main at main.c:7
> >     4   	{
> >     5   	    int a = 2;
> >     6   	    int b = 0;
> > -> 7   	    return a/b;
> > 
> > 
> > I'm pretty sure I remember some dialog appearing saying something about SIGSEGV (or in this case EXC_ARITHMETIC)?
> > 
> > MS gives this: https://user-images.githubusercontent.com/10531631/36583169-c65d48ea-1874-11e8-90db-1a651cfd09f5.png
> > I thought earlier versions of QtC had something simular.
> > 
> > The difference is:
> > 
> > int *a, *b; *b=0;
> > return *a / *b;
> > 
> > Here, the problem could be that 'a' is out of process space, or 'b' is 0. If 'a' is a pointer, I don't necessarily know what my address range is. I have to deduce (and risk being wrong) what the actual crash was, meaning I could waste time going down the wrong path.
> > 
> 
> 
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