--- /dev/null
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2016 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+
+
+// verify that we can create tasks both via lambdas and via std::bind
+// expressions. this obviously requires C++11
+
+#include "../tests.h"
+#include <iomanip>
+#include <fstream>
+#include <unistd.h>
+
+#include <deal.II/base/thread_management.h>
+
+
+// return a double, to make sure we correctly identify the return type
+// of the expressions used in new_task(...)
+double test (int i)
+{
+ deallog << "Task " << i << " starting..." << std::endl;
+ sleep (1);
+ deallog << "Task " << i << " finished!" << std::endl;
+
+ return 3.141;
+}
+
+
+
+
+int main()
+{
+ std::ofstream logfile("output");
+ deallog.attach(logfile);
+ deallog.threshold_double(1.e-10);
+
+ Threads::TaskGroup<double> tg;
+ tg += Threads::new_task (std::bind (test, 1));
+ tg += Threads::new_task ([]()
+ {
+ return test(2);
+ });
+
+ tg.join_all ();
+
+ deallog << "OK" << std::endl;
+
+ deallog.detach ();
+ logfile.close ();
+ sort_file_contents ("output");
+}
--- /dev/null
+DEAL::OK
+DEAL::Task 1 finished!
+DEAL::Task 1 starting...
+DEAL::Task 2 finished!
+DEAL::Task 2 starting...
+
--- /dev/null
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2016 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+
+
+// verify that we can create tasks both via lambdas and via std::bind
+// expressions. this obviously requires C++11
+//
+// this is a small variation of the _12 test
+
+
+#include "../tests.h"
+#include <iomanip>
+#include <fstream>
+#include <unistd.h>
+
+#include <deal.II/base/thread_management.h>
+
+
+// return a double, to make sure we correctly identify the return type
+// of the expressions used in new_task(...)
+double test (int i)
+{
+ deallog << "Task " << i << " starting..." << std::endl;
+ sleep (1);
+ deallog << "Task " << i << " finished!" << std::endl;
+
+ return 3.141;
+}
+
+
+
+
+int main()
+{
+ std::ofstream logfile("output");
+ deallog.attach(logfile);
+ deallog.threshold_double(1.e-10);
+
+ Threads::TaskGroup<double> tg;
+
+ // use variations of ways we can declare lambdas
+ tg += Threads::new_task ([]() -> double { return test(1); });
+ tg += Threads::new_task ([]() -> double { return (float)test(2); });
+
+ tg.join_all ();
+
+ deallog << "OK" << std::endl;
+
+ deallog.detach ();
+ logfile.close ();
+ sort_file_contents ("output");
+}
--- /dev/null
+DEAL::OK
+DEAL::Task 1 finished!
+DEAL::Task 1 starting...
+DEAL::Task 2 finished!
+DEAL::Task 2 starting...
+