early-access version 3088

externals/vcpkg/buildtrees/boost-thread/src/ost-1.79.0-518d8082f0.clean/test/test_ml2.cpp

@@ -0,0 +1,60 @@
+// Copyright (C) 2010 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)
+
+#define BOOST_THREAD_VERSION 4
+
+#include <cassert>
+#include <vector>
+#include <future>
+#include <functional>
+#include <boost/thread/future.hpp>
+
+
+int TRUC = 42;
+int main()
+{
+   std::vector< std::function<void()> > work_queue;
+
+  auto do_some_work = [&]()-> boost::future<int*>
+  {
+    auto promise = std::make_shared<boost::promise<int*>>();
+#if 0
+    work_queue.push_back( [=]
+    {
+      promise->set_value( &TRUC );
+    });
+#else
+    auto inner = [=]()
+    {
+      promise->set_value( &TRUC );
+    };
+    work_queue.push_back(inner);
+
+#endif
+
+    return promise->get_future();
+
+  };
+
+  auto ft_value = do_some_work();
+
+  while( !work_queue.empty() )
+   {
+#if 0
+      auto work = work_queue.back();
+#else
+      std::function<void()> work;
+      work = work_queue.back();
+#endif
+      work_queue.pop_back();
+      work();
+   }
+
+  auto value = ft_value.get();
+  assert( value == &TRUC );
+  return 0;
+}
+
+