libstdc++-v3/testsuite/25_algorithms/fill_n/94017.cc

   1 // Copyright (C) 2020-2022 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 { target c++2a } }
  20
  21 #include <algorithm>
  22 #include <testsuite_hooks.h>
  23 #include <testsuite_iterators.h>
  24
  25 using __gnu_test::test_output_range;
  26
  27 namespace ranges = std::ranges;
  28
  29 template<typename Out, auto value>
  30 void
  31 test01()
  32 {
  33     {
  34       Out x[5];
  35       ranges::fill_n(x, 5, value);
  36       VERIFY( ranges::count(x, static_cast<Out>(value)) == ranges::size(x) );
  37     }
  38
  39     {
  40       Out x[5];
  41       test_output_range<Out> rx(x);
  42       ranges::fill_n(x, 5, value);
  43       VERIFY( ranges::count(x, static_cast<Out>(value)) == ranges::size(x) );
  44     }
  45 }
  46
  47 int
  48 main()
  49 {
  50   test01<char, 'a'>();
  51   test01<char, 100>();
  52   test01<char, 150>();
  53   test01<char, 300>();
  54   test01<char, 1000>();
  55   test01<char, -10000L>();
  56
  57   test01<signed char, 'a'>();
  58   test01<signed char, 100>();
  59   test01<signed char, 150>();
  60   test01<signed char, 300>();
  61
  62   test01<unsigned char, 'a'>();
  63   test01<unsigned char, 100>();
  64   test01<unsigned char, 150>();
  65   test01<unsigned char, 300>();
  66
  67   test01<int, 'a'>();
  68   test01<int, u8'a'>();
  69   test01<int, (signed char)'a'>();
  70   test01<int, (unsigned char)'a'>();
  71
  72   test01<volatile int, 'a'>();
  73   test01<volatile int, 'a'>();
  74   test01<volatile int, 500>();
  75   test01<volatile char, 500>();
  76 }