Re: [LAD] Segfault when trying to dereference __midi_event.buffer (c++ newbie question)

On Wed, Nov 21, 2012 at 7:49 AM, Shani Hadiyanto Pribadi <
shanipribadi@email-addr-hidden> wrote:

> That's it. Apparently the cause of segfault is dereferencing the pointer
> when there's no data.
> After adding checks for available data the segfault does not happen
> anymore.
>
> It never occured to me that was the cause because on the C version,
> accessing the pointer when there's no data
> returns 0x6a but didn't segfault.
>

accessing an undefined pointer has undefined results. you can rely on that.
in C, in C++ and in any other language with pointers.

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Received on Wed Nov 21 16:15:03 2012