[Bug c++/52964] No warning on negative array size in template instantatiation

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52964

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |manu at gcc dot gnu.org

--- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-04-12 23:16:35 UTC ---
And with trunk we print:

pr52964.cc: In instantiation of ‘struct S1<4>’:
pr52964.cc:2:49:   required from ‘struct S2<int>’
pr52964.cc:3:45:   required from ‘void foo(T) [with T = int]’
pr52964.cc:4:21:   required from here
pr52964.cc:1:43: error: size of array is negative
 template <int N> struct S1 { int arr[N - 5]; };
                                           ^

We could easily print the caret for each line. And the locations could be much
better.

I also like more the order of Clang and the extra info about what each thing
is, but we would have to convince Gabriel and/or Jason.

David, what else do you see that could be improved?