libstdc++-v3/testsuite/23_containers/span/last_assert_neg.cc

   1 // Copyright (C) 2019-2020 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-options "-std=gnu++2a" }
  19 // { dg-do run { xfail *-*-* } }
  20 // { dg-require-effective-target c++2a }
  21
  22 #undef _GLIBCXX_ASSERTIONS
  23 #define _GLIBCXX_ASSERTIONS
  24 #include <span>
  25
  26 int main()
  27 {
  28   int a[4];
  29   std::span<int, std::dynamic_extent> s(a);
  30   s.last<5>();
  31 }