tests/test-nullptr-c++.cc

   1 /* Test nullptr in C++ mode.
   2    Copyright 2023-2025 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program 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
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible.  */
  18
  19 #include <config.h>
  20
  21 /* Check that nullptr is defined.  */
  22 int *my_null = nullptr;
  23
  24 /* Check against conflicts between <config.h> and the C++ header files.  */
  25 #include <iostream>
  26 #include <vector>
  27
  28 #include <stdarg.h>
  29
  30 #include "macros.h"
  31
  32 void
  33 varargs_callee (const char *first, ...)
  34 {
  35   va_list args;
  36   const char *arg;
  37
  38   ASSERT (first[0] == 't');
  39   va_start (args, first);
  40
  41   arg = va_arg (args, const char *);
  42   ASSERT (arg == NULL);
  43
  44   arg = va_arg (args, const char *);
  45   ASSERT (arg[0] == 'f');
  46
  47   arg = va_arg (args, const char *);
  48   ASSERT (arg == NULL);
  49
  50   va_end (args);
  51 }
  52
  53 int
  54 main ()
  55 {
  56   varargs_callee ("type", nullptr, "foo", nullptr);
  57
  58   return test_exit_status;
  59 }