Added a message to ease the detection of platforms on which thread cancellation isn't supported.

1 files changed, 4 insertions, 0 deletions

diff --git a/unsupported/test/cxx11_non_blocking_thread_pool.cpp b/unsupported/test/cxx11_non_blocking_thread_pool.cpp
index 0fc5a257a..fe30551ce 100644
--- a/unsupported/test/cxx11_non_blocking_thread_pool.cpp
+++ b/unsupported/test/cxx11_non_blocking_thread_pool.cpp
@@ -107,10 +107,14 @@ static void test_cancel()
   NonBlockingThreadPool tp(4);
 
 #ifdef EIGEN_SUPPORTS_THREAD_CANCELLATION
+  std::cout << "Thread cancellation is supported on this platform" << std::endl;
+
   // Put 2 threads to sleep for much longer than the default test timeout.
   tp.Schedule([]() { sleep(3600); } );
   tp.Schedule([]() { sleep(3600 * 24); } );
 #else
+  std::cout << "Thread cancellation is a no-op on this platform" << std::endl;
+
   // Make 2 threads sleep for a short period of time
   tp.Schedule([]() { sleep(1); } );
   tp.Schedule([]() { sleep(2); } );