libstdc++-v3/testsuite/21_strings/basic_string/pthread33394.cc

   1 // Copyright (C) 2015-2020 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 run }
  19 // { dg-options "-pthread"  }
  20 // { dg-require-effective-target pthread }
  21
  22 // { dg-additional-options "-DITERATIONS=1000" { target simulator } }
  23 #ifndef ITERATIONS
  24 #define ITERATIONS 50000
  25 #endif
  26
  27 // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32261
  28
  29 #include <pthread.h>
  30 #include <string>
  31
  32 extern "C" void* thread_function(void*) {
  33     for (int k = 0; k < ITERATIONS; k++) {
  34         std::string my_str;
  35         my_str += "foo";
  36     }
  37     return 0;
  38 }
  39
  40 int main()
  41 {
  42     pthread_t thread1, thread2;
  43
  44     pthread_create(&thread1, NULL, thread_function, NULL);
  45     pthread_create(&thread2, NULL, thread_function, NULL);
  46
  47     void* exitcode;
  48     pthread_join(thread1, &exitcode);
  49     pthread_join(thread2, &exitcode);
  50 }