libstdc++-v3/testsuite/23_containers/array/capacity/max_size.cc

   1 // { dg-do run { target c++11 } }
   2 //
   3 // Copyright (C) 2011-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <array>
  21 #include <testsuite_hooks.h>
  22
  23 void
  24 test01()
  25 {
  26   {
  27     const size_t len = 5;
  28     typedef std::array<int, len> array_type;
  29     array_type a = { { 0, 1, 2, 3, 4 } };
  30
  31     VERIFY( a.max_size() == len );
  32   }
  33
  34   {
  35     const size_t len = 0;
  36     typedef std::array<int, len> array_type;
  37     array_type a;
  38
  39     VERIFY( a.max_size() == len );
  40   }
  41 }
  42
  43 #pragma GCC push_options
  44 #pragma GCC optimize "0"
  45
  46 void
  47 test02()
  48 {
  49   {
  50     const size_t len = 3;
  51     typedef std::array<int, len> array_type;
  52     array_type a;
  53
  54     VERIFY( a.max_size() == len );  // { dg-bogus "-Wmaybe-uninitialized"
  55   }
  56 }
  57
  58 #pragma GCC pop_options
  59
  60 int main()
  61 {
  62   test01();
  63   test02();
  64   return 0;
  65 }