michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * vim: sw=2 ts=8 et :
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_unused_h
michael@0: #define mozilla_unused_h
michael@0: 
michael@0: #include "nscore.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: //
michael@0: // Suppress GCC warnings about unused return values with
michael@0: //   unused << SomeFuncDeclaredWarnUnusedReturnValue();
michael@0: //
michael@0: struct NS_COM_GLUE unused_t { };
michael@0: 
michael@0: extern const unused_t NS_COM_GLUE unused;
michael@0: 
michael@0: template<typename T>
michael@0: inline void operator<<(const unused_t& /*unused*/, const T& /*unused*/) { }
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif // mozilla_unused_h