From 86c65de3ae99420ca7a2af406a97ade6aa989774 Mon Sep 17 00:00:00 2001 From: schodet Date: Mon, 17 Jan 2005 15:04:29 +0000 Subject: Initial revision --- 2005/i/robert/src/utils/callback.hh | 79 +++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 2005/i/robert/src/utils/callback.hh (limited to '2005/i/robert/src/utils/callback.hh') diff --git a/2005/i/robert/src/utils/callback.hh b/2005/i/robert/src/utils/callback.hh new file mode 100644 index 0000000..f9eff8f --- /dev/null +++ b/2005/i/robert/src/utils/callback.hh @@ -0,0 +1,79 @@ +#ifndef callback_hh +#define callback_hh +// callback.hh +// robert - programme du robot 2005. {{{ +// +// Copyright (C) 2004 Nicolas Schodet +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 2 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +// +// Contact : +// Web: http://perso.efrei.fr/~schodet/ +// Email: +// }}} + +#include + +template +class Callback +{ + class AbstractHolder; + AbstractHolder *holder_; + public: + typedef R result_type; + public: + Callback (void); + template + Callback (T callback); + Callback (const Callback &other); + ~Callback (void); + R operator () (void); + void swap (Callback &rhs); + Callback &operator= (const Callback &rhs); + template + Callback &operator= (T rhs); + bool empty (void) const; + operator bool (void) const; + private: + class AbstractHolder + { + public: + virtual ~AbstractHolder (void); + virtual R operator () (void) = 0; + virtual AbstractHolder *clone (void) = 0; + }; + template + class Holder : public AbstractHolder + { + private: + T callback_; + public: + Holder (T callback); + virtual R operator () (void); + virtual AbstractHolder *clone (void); + }; +}; + +class bad_callback : public std::runtime_error +{ + public: + bad_callback (void) : std::runtime_error ("bad_callback: empty callback call") + { + } +}; + +#include "callback.tcc" + +#endif // callback_hh -- cgit v1.2.3