Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/src/boost/libs/thread/example/std_thread_guard.cpp b/src/boost/libs/thread/example/std_thread_guard.cpp
new file mode 100644
index 00000000..ebf5a417
--- /dev/null
+++ b/src/boost/libs/thread/example/std_thread_guard.cpp
@@ -0,0 +1,66 @@
+// (C) Copyright 2009-2012 Anthony Williams
+// (C) Copyright 2012 Vicente Botet
+//
+//  Distributed under the Boost Software License, Version 1.0. (See accompanying
+//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#if __cplusplus < 201103L
+int main()
+{
+  return 0;
+}
+#else
+#include <iostream>
+#include <string>
+#include <boost/thread/thread_only.hpp>
+#include <boost/thread/thread_guard.hpp>
+#include <thread>
+
+void do_something(int& i)
+{
+    ++i;
+}
+
+struct func
+{
+    int& i;
+
+    func(int& i_):i(i_){}
+
+    void operator()()
+    {
+        for(unsigned j=0;j<1000000;++j)
+        {
+            do_something(i);
+        }
+    }
+
+private:
+    func& operator=(func const&);
+
+};
+
+void do_something_in_current_thread()
+{}
+
+using thread_guard = boost::thread_guard<boost::join_if_joinable, std::thread>;
+
+
+void f()
+{
+    int some_local_state;
+    func my_func(some_local_state);
+    std::thread t(my_func);
+    thread_guard g(t);
+
+    do_something_in_current_thread();
+}
+
+int main()
+{
+    f();
+    return 0;
+}
+
+
+#endif