1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/glue/unused.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,28 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * vim: sw=2 ts=8 et :
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#ifndef mozilla_unused_h
1.12 +#define mozilla_unused_h
1.13 +
1.14 +#include "nscore.h"
1.15 +
1.16 +namespace mozilla {
1.17 +
1.18 +//
1.19 +// Suppress GCC warnings about unused return values with
1.20 +// unused << SomeFuncDeclaredWarnUnusedReturnValue();
1.21 +//
1.22 +struct NS_COM_GLUE unused_t { };
1.23 +
1.24 +extern const unused_t NS_COM_GLUE unused;
1.25 +
1.26 +template<typename T>
1.27 +inline void operator<<(const unused_t& /*unused*/, const T& /*unused*/) { }
1.28 +
1.29 +}
1.30 +
1.31 +#endif // mozilla_unused_h
