Re: [PATCH] Out of bounds array access in hooks.c

Philip Martin <philip@codematters.co.uk> writes:
> Karl Fogel <kfogel@red-bean.com> writes:
>> Thanks, Daniel and David. That was my bad, I think. It passed all my
>> testing too; I have no idea what the compiler was doing with array
>> allocation such that there was always room, but I wish it hadn't :-).
>
> You could use this technique:
>
> int i = 0;
> const char *args[3];
>
> args[i++] = ...;
> args[i++] = ...;
> args[i++] = ...;
>
> assert(i == sizeof(args)/sizeof(args[0]));

Neat trick! I may use it next time.

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Received on Wed Dec 12 09:23:39 2007