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      1 /*
      2  *
      3  *
      4  * Copyright (c) 1994
      5  * Hewlett-Packard Company
      6  *
      7  * Copyright (c) 1996,1997
      8  * Silicon Graphics Computer Systems, Inc.
      9  *
     10  * Copyright (c) 1997
     11  * Moscow Center for SPARC Technology
     12  *
     13  * Copyright (c) 1999
     14  * Boris Fomitchev
     15  *
     16  * This material is provided "as is", with absolutely no warranty expressed
     17  * or implied. Any use is at your own risk.
     18  *
     19  * Permission to use or copy this software for any purpose is hereby granted
     20  * without fee, provided the above notices are retained on all copies.
     21  * Permission to modify the code and to distribute modified code is granted,
     22  * provided the above notices are retained, and a notice that the code was
     23  * modified is included with the above copyright notice.
     24  *
     25  */
     26 #ifndef _STLP_SLIST_BASE_C
     27 #define _STLP_SLIST_BASE_C
     28 
     29 #ifndef _STLP_INTERNAL_SLIST_BASE_H
     30 #  include <stl/_slist_base.h>
     31 #endif
     32 
     33 _STLP_BEGIN_NAMESPACE
     34 
     35 _STLP_MOVE_TO_PRIV_NAMESPACE
     36 
     37 template <class _Dummy>
     38 _Slist_node_base*  _STLP_CALL
     39 _Sl_global<_Dummy>::__previous(_Slist_node_base* __head,
     40                                const _Slist_node_base* __node) {
     41   while (__head && __head->_M_next != __node)
     42     __head = __head->_M_next;
     43   return __head;
     44 }
     45 
     46 template <class _Dummy>
     47 void _STLP_CALL
     48 _Sl_global<_Dummy>::__splice_after(_Slist_node_base* __pos, _Slist_node_base* __head) {
     49   _Slist_node_base* __before_last = __previous(__head, 0);
     50   if (__before_last != __head) {
     51     _Slist_node_base* __after = __pos->_M_next;
     52     __pos->_M_next = __head->_M_next;
     53     __head->_M_next = 0;
     54     __before_last->_M_next = __after;
     55   }
     56 }
     57 
     58 template <class _Dummy>
     59 void _STLP_CALL
     60 _Sl_global<_Dummy>::__splice_after(_Slist_node_base* __pos,
     61                                    _Slist_node_base* __before_first,
     62                                    _Slist_node_base* __before_last) {
     63   if (__pos != __before_first && __pos != __before_last) {
     64     _Slist_node_base* __first = __before_first->_M_next;
     65     _Slist_node_base* __after = __pos->_M_next;
     66     __before_first->_M_next = __before_last->_M_next;
     67     __pos->_M_next = __first;
     68     __before_last->_M_next = __after;
     69   }
     70 }
     71 
     72 template <class _Dummy>
     73 _Slist_node_base* _STLP_CALL
     74 _Sl_global<_Dummy>::__reverse(_Slist_node_base* __node) {
     75   _Slist_node_base* __result = __node;
     76   __node = __node->_M_next;
     77   __result->_M_next = 0;
     78   while(__node) {
     79     _Slist_node_base* __next = __node->_M_next;
     80     __node->_M_next = __result;
     81     __result = __node;
     82     __node = __next;
     83   }
     84   return __result;
     85 }
     86 
     87 template <class _Dummy>
     88 size_t _STLP_CALL
     89 _Sl_global<_Dummy>::size(_Slist_node_base* __node) {
     90   size_t __result = 0;
     91   for ( ; __node != 0; __node = __node->_M_next)
     92     ++__result;
     93   return __result;
     94 }
     95 
     96 _STLP_MOVE_TO_STD_NAMESPACE
     97 
     98 _STLP_END_NAMESPACE
     99 
    100 #endif /*  _STLP_SLIST_BASE_C */
    101 
    102 // Local Variables:
    103 // mode:C++
    104 // End:
    105