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OpenCV/include/opencv2/gapi/util/compiler_hints.hpp

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+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+//
+// Copyright (C) 2018 Intel Corporation
+
+#ifndef OPENCV_GAPI_UTIL_COMPILER_HINTS_HPP
+#define OPENCV_GAPI_UTIL_COMPILER_HINTS_HPP
+
+namespace cv
+{
+namespace util
+{
+    //! Utility template function to prevent "unused" warnings by various compilers.
+    template<typename T> void suppress_unused_warning( const T& ) {}
+} // namespace util
+} // namespace cv
+
+#endif /* OPENCV_GAPI_UTIL_COMPILER_HINTS_HPP */