libstdc++-v3/testsuite/26_numerics/headers/cstdlib/dr2192_neg.cc

   1 // Copyright (C) 2016-2024 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-do compile { target c++11 } }
  19
  20 // Math-related cstdlib bits are not freestanding.
  21 // { dg-require-effective-target hosted }
  22
  23 // NB: Don't include any other headers in this file.
  24 // LWG 2192 requires abs to be ill-formed for unsigned arguments.
  25 #include <cstdlib>
  26
  27 void test()
  28 {
  29   std::abs(0u);                 // { dg-error "ambiguous" }
  30   std::abs(0lu);                // { dg-error "ambiguous" }
  31   std::abs(0llu);               // { dg-error "ambiguous" }
  32 }