I see, thanks. Indeed the fact that is guarantees stack allocation is quite different from `std::dyn_array`. Now let's hope people will behave and only use of small values of "n" !
On Sat, Apr 20, 2013 at 4:43 PM, Richard Smith <[email protected]>wrote: > On Sat, Apr 20, 2013 at 6:46 AM, Matthieu Monrocq < > [email protected]> wrote: > >> Without the link I cannot confirm, is this "true" VLA or is it >> `std::dyn_array` ? >> > > What we voted in is pretty close to this: > http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3497.html > > Quick summary: > > struct S { > S(); > ~S(); > }; > void f(int n) { > S array[n]; > [&array] { // ok > for (decltype(auto) s : array) { // ok > // ... > } > } > [=array] {} // error > sizeof(array); // error > decltype(array) array2; // error > int nested1[n][2]; // ok > int nested2[2][n]; // error > typedef int td[n]; // error > } > > On Sat, Apr 20, 2013 at 3:33 PM, Stephen Lin <[email protected]>wrote: >> >>> Oh dear, are they adopting the runtime-evaluated "sizeof" too?? >>> >>> On Sat, Apr 20, 2013 at 9:20 AM, Richard Smith >>> <[email protected]> wrote: >>> > Author: rsmith >>> > Date: Sat Apr 20 08:20:33 2013 >>> > New Revision: 179949 >>> > >>> > URL: http://llvm.org/viewvc/llvm-project?rev=179949&view=rev >>> > Log: >>> > VLAs in C++14! >>> > >>> > Modified: >>> > cfe/trunk/www/cxx_status.html >>> > >>> > Modified: cfe/trunk/www/cxx_status.html >>> > URL: >>> http://llvm.org/viewvc/llvm-project/cfe/trunk/www/cxx_status.html?rev=179949&r1=179948&r2=179949&view=diff >>> > >>> ============================================================================== >>> > --- cfe/trunk/www/cxx_status.html (original) >>> > +++ cfe/trunk/www/cxx_status.html Sat Apr 20 08:20:33 2013 >>> > @@ -427,7 +427,7 @@ available.</p> >>> > <td class="none" align="center">No</td> >>> > </tr> >>> > <tr> >>> > - <td>[PROVISIONAL] Runtime-sized arrays with automatic storage >>> duration</td> >>> > + <td>Runtime-sized arrays with automatic storage duration</td> >>> > <td><a href=" >>> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3639.html >>> ">N3639</a></td> >>> > <td class="none" align="center">Partial</td> >>> > </tr> >>> > @@ -459,7 +459,7 @@ available.</p> >>> > <tr> >>> > <td>Clarifying memory allocation</td> >>> > <td><a href=" >>> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3664.html >>> ">N3664</a></td> >>> > - <td class="none" align="center">No</td> >>> > + <td class="none" align="center">Partial</td> >>> > </tr> >>> > </table> >>> > >>> > >>> > >>> > _______________________________________________ >>> > cfe-commits mailing list >>> > [email protected] >>> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits >>> _______________________________________________ >>> cfe-commits mailing list >>> [email protected] >>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits >>> >> >> >
_______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
