List.hpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2012  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Lesser General Public License, Version 3 {{{ */
   6 /*
   7  * Cycript is free software: you can redistribute it and/or modify it under
   8  * the terms of the GNU Lesser General Public License as published by the
   9  * Free Software Foundation, either version 3 of the License, or (at your
  10  * option) any later version.
  11  *
  12  * Cycript is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  15  * License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #ifndef CYCRIPT_LIST_HPP
  23 #define CYCRIPT_LIST_HPP
  24
  25 template <typename Type_>
  26 struct CYNext {
  27     Type_ *next_;
  28
  29     CYNext() :
  30         next_(NULL)
  31     {
  32     }
  33
  34     CYNext(Type_ *next) :
  35         next_(next)
  36     {
  37     }
  38
  39     void SetNext(Type_ *next) {
  40         next_ = next;
  41     }
  42 };
  43
  44 template <typename Type_>
  45 Type_ *&CYSetLast(Type_ *&list) {
  46     if (list == NULL)
  47         return list;
  48
  49     Type_ *next(list);
  50     while (next->next_ != NULL)
  51         next = next->next_;
  52     return next->next_;
  53 }
  54
  55 template <typename Type_>
  56 Type_ *CYGetLast(Type_ *list) {
  57     if (list == NULL)
  58         return NULL;
  59
  60     Type_ *next(list);
  61     while (next->next_ != NULL)
  62         next = next->next_;
  63     return next;
  64 }
  65
  66 #define CYForEach(value, list) \
  67     for (__typeof__(*list) *value(list); value != NULL; value = value->next_)
  68
  69 #endif/*CYCRIPT_LIST_HPP*/