Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /* vim:expandtab:shiftwidth=4:tabstop=4:
       3             :  */
       4             : /* This Source Code Form is subject to the terms of the Mozilla Public
       5             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       6             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       7             : 
       8             : #ifndef nsGtkUtils_h__
       9             : #define nsGtkUtils_h__
      10             : 
      11             : #include <glib.h>
      12             : 
      13             : // Some gobject functions expect functions for gpointer arguments.
      14             : // gpointer is void* but C++ doesn't like casting functions to void*.
      15             : template<class T> static inline gpointer
      16           0 : FuncToGpointer(T aFunction)
      17             : {
      18             :     return reinterpret_cast<gpointer>
      19             :         (reinterpret_cast<uintptr_t>
      20             :          // This cast just provides a warning if T is not a function.
      21           0 :          (reinterpret_cast<void (*)()>(aFunction)));
      22             : }
      23             : 
      24             : #endif // nsGtkUtils_h__