initial code repo

[stor4nfv.git] / src / ceph / src / common / compiler_extensions.h

diff --git a/src/ceph/src/common/compiler_extensions.h b/src/ceph/src/common/compiler_extensions.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 New Dream Network
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef CEPH_COMPILER_EXTENSIONS_H
+#define CEPH_COMPILER_EXTENSIONS_H
+
+/* We should be able to take advantage of nice nonstandard features of gcc
+ * and other compilers, but still maintain portability.
+ */
+
+#ifdef __GNUC__
+// GCC
+#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+// some other compiler - just make it a no-op
+#define WARN_UNUSED_RESULT
+#endif
+
+#endif