libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // 2007-05-03  Benjamin Kosnik  <bkoz@redhat.com>
   4 //
   5 // Copyright (C) 2007-2023 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <type_traits>
  23
  24 struct pod_class { };
  25
  26 void test01()
  27 {
  28   using std::make_unsigned;
  29
  30   // Negative tests.
  31   using T1 = make_unsigned<bool>::type; // { dg-error "incomplete" }
  32   using T2 = make_unsigned<const bool>::type; // { dg-error "incomplete" }
  33   using T3 = make_unsigned<volatile bool>::type; // { dg-error "incomplete" }
  34   using T4 = make_unsigned<const volatile bool>::type; // { dg-error "incomplete" }
  35
  36   using T5 = make_unsigned<pod_class>::type; // { dg-error "here" }
  37
  38   using T6 = make_unsigned<int[4]>::type; // { dg-error "here" }
  39
  40   using fn_type = void ();
  41   using T7 = make_unsigned<fn_type>::type; // { dg-error "here" }
  42
  43   using T8 = make_unsigned<float>::type; // { dg-error "here" }
  44 }
  45
  46 // { dg-error "invalid use of incomplete type" "" { target *-*-* } 0 }