[cfe-dev] Suggestion for array bounds warning

[Marshall Clow]

On Dec 18, 2012, at 8:12 AM, Marshall Clow <mclow.lists at gmail.com> wrote:

> If I write
> 	int arr[2];
> 	arr[2] = -1;
> 
> I get "warning: array index 2 is past end of array".
> That's great.
> 
> but if I write:
> 	std::array<int, 2> arr;
> 	arr[2] = -1;
> 
> I get no warning.
> I think that "it would be nice" if  clang warned in that case also.


FWIW, I just committed a change to libc++ so that:
	std::array<int, 2> arr;
	std::get<2>(arr) = -1;

will static_assert.
Thanks to Howard for the code review.

-- Marshall

Marshall Clow     Idio Software   <mailto:mclow.lists at gmail.com>

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