X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fext%2Fropeimpl.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fext%2Fropeimpl.h;h=3ee06104c605452876531b3b4e2fa3386e42f85d;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git
diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/ropeimpl.h b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/ropeimpl.h
new file mode 100644
index 0000000..3ee0610
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/ropeimpl.h
@@ -0,0 +1,1704 @@
+// SGI's rope class implementation -*- C++ -*-
+
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library 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 3, or (at your option)
+// any later version.
+
+// This library 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// .
+
+/*
+ * Copyright (c) 1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/** @file ropeimpl.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{ext/rope}
+ */
+
+#include
+#include
+#include
+
+#include // For copy_n and lexicographical_compare_3way
+#include // For uninitialized_copy_n
+#include // For power
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ using std::size_t;
+ using std::printf;
+ using std::basic_ostream;
+ using std::__throw_length_error;
+ using std::_Destroy;
+ using std::uninitialized_fill_n;
+
+ // Set buf_start, buf_end, and buf_ptr appropriately, filling tmp_buf
+ // if necessary. Assumes _M_path_end[leaf_index] and leaf_pos are correct.
+ // Results in a valid buf_ptr if the iterator can be legitimately
+ // dereferenced.
+ template
+ void
+ _Rope_iterator_base<_CharT, _Alloc>::
+ _S_setbuf(_Rope_iterator_base<_CharT, _Alloc>& __x)
+ {
+ const _RopeRep* __leaf = __x._M_path_end[__x._M_leaf_index];
+ size_t __leaf_pos = __x._M_leaf_pos;
+ size_t __pos = __x._M_current_pos;
+
+ switch(__leaf->_M_tag)
+ {
+ case __detail::_S_leaf:
+ __x._M_buf_start = ((_Rope_RopeLeaf<_CharT, _Alloc>*)__leaf)->_M_data;
+ __x._M_buf_ptr = __x._M_buf_start + (__pos - __leaf_pos);
+ __x._M_buf_end = __x._M_buf_start + __leaf->_M_size;
+ break;
+ case __detail::_S_function:
+ case __detail::_S_substringfn:
+ {
+ size_t __len = _S_iterator_buf_len;
+ size_t __buf_start_pos = __leaf_pos;
+ size_t __leaf_end = __leaf_pos + __leaf->_M_size;
+ char_producer<_CharT>* __fn = ((_Rope_RopeFunction<_CharT,
+ _Alloc>*)__leaf)->_M_fn;
+ if (__buf_start_pos + __len <= __pos)
+ {
+ __buf_start_pos = __pos - __len / 4;
+ if (__buf_start_pos + __len > __leaf_end)
+ __buf_start_pos = __leaf_end - __len;
+ }
+ if (__buf_start_pos + __len > __leaf_end)
+ __len = __leaf_end - __buf_start_pos;
+ (*__fn)(__buf_start_pos - __leaf_pos, __len, __x._M_tmp_buf);
+ __x._M_buf_ptr = __x._M_tmp_buf + (__pos - __buf_start_pos);
+ __x._M_buf_start = __x._M_tmp_buf;
+ __x._M_buf_end = __x._M_tmp_buf + __len;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+
+ // Set path and buffer inside a rope iterator. We assume that
+ // pos and root are already set.
+ template
+ void
+ _Rope_iterator_base<_CharT, _Alloc>::
+ _S_setcache(_Rope_iterator_base<_CharT, _Alloc>& __x)
+ {
+ const _RopeRep* __path[int(__detail::_S_max_rope_depth) + 1];
+ const _RopeRep* __curr_rope;
+ int __curr_depth = -1; /* index into path */
+ size_t __curr_start_pos = 0;
+ size_t __pos = __x._M_current_pos;
+ unsigned char __dirns = 0; // Bit vector marking right turns in the path
+
+ if (__pos >= __x._M_root->_M_size)
+ {
+ __x._M_buf_ptr = 0;
+ return;
+ }
+ __curr_rope = __x._M_root;
+ if (0 != __curr_rope->_M_c_string)
+ {
+ /* Treat the root as a leaf. */
+ __x._M_buf_start = __curr_rope->_M_c_string;
+ __x._M_buf_end = __curr_rope->_M_c_string + __curr_rope->_M_size;
+ __x._M_buf_ptr = __curr_rope->_M_c_string + __pos;
+ __x._M_path_end[0] = __curr_rope;
+ __x._M_leaf_index = 0;
+ __x._M_leaf_pos = 0;
+ return;
+ }
+ for(;;)
+ {
+ ++__curr_depth;
+ __path[__curr_depth] = __curr_rope;
+ switch(__curr_rope->_M_tag)
+ {
+ case __detail::_S_leaf:
+ case __detail::_S_function:
+ case __detail::_S_substringfn:
+ __x._M_leaf_pos = __curr_start_pos;
+ goto done;
+ case __detail::_S_concat:
+ {
+ _Rope_RopeConcatenation<_CharT, _Alloc>* __c =
+ (_Rope_RopeConcatenation<_CharT, _Alloc>*)__curr_rope;
+ _RopeRep* __left = __c->_M_left;
+ size_t __left_len = __left->_M_size;
+
+ __dirns <<= 1;
+ if (__pos >= __curr_start_pos + __left_len)
+ {
+ __dirns |= 1;
+ __curr_rope = __c->_M_right;
+ __curr_start_pos += __left_len;
+ }
+ else
+ __curr_rope = __left;
+ }
+ break;
+ }
+ }
+ done:
+ // Copy last section of path into _M_path_end.
+ {
+ int __i = -1;
+ int __j = __curr_depth + 1 - int(_S_path_cache_len);
+
+ if (__j < 0) __j = 0;
+ while (__j <= __curr_depth)
+ __x._M_path_end[++__i] = __path[__j++];
+ __x._M_leaf_index = __i;
+ }
+ __x._M_path_directions = __dirns;
+ _S_setbuf(__x);
+ }
+
+ // Specialized version of the above. Assumes that
+ // the path cache is valid for the previous position.
+ template
+ void
+ _Rope_iterator_base<_CharT, _Alloc>::
+ _S_setcache_for_incr(_Rope_iterator_base<_CharT, _Alloc>& __x)
+ {
+ int __current_index = __x._M_leaf_index;
+ const _RopeRep* __current_node = __x._M_path_end[__current_index];
+ size_t __len = __current_node->_M_size;
+ size_t __node_start_pos = __x._M_leaf_pos;
+ unsigned char __dirns = __x._M_path_directions;
+ _Rope_RopeConcatenation<_CharT, _Alloc>* __c;
+
+ if (__x._M_current_pos - __node_start_pos < __len)
+ {
+ /* More stuff in this leaf, we just didn't cache it. */
+ _S_setbuf(__x);
+ return;
+ }
+ // node_start_pos is starting position of last_node.
+ while (--__current_index >= 0)
+ {
+ if (!(__dirns & 1) /* Path turned left */)
+ break;
+ __current_node = __x._M_path_end[__current_index];
+ __c = (_Rope_RopeConcatenation<_CharT, _Alloc>*)__current_node;
+ // Otherwise we were in the right child. Thus we should pop
+ // the concatenation node.
+ __node_start_pos -= __c->_M_left->_M_size;
+ __dirns >>= 1;
+ }
+ if (__current_index < 0)
+ {
+ // We underflowed the cache. Punt.
+ _S_setcache(__x);
+ return;
+ }
+ __current_node = __x._M_path_end[__current_index];
+ __c = (_Rope_RopeConcatenation<_CharT, _Alloc>*)__current_node;
+ // current_node is a concatenation node. We are positioned on the first
+ // character in its right child.
+ // node_start_pos is starting position of current_node.
+ __node_start_pos += __c->_M_left->_M_size;
+ __current_node = __c->_M_right;
+ __x._M_path_end[++__current_index] = __current_node;
+ __dirns |= 1;
+ while (__detail::_S_concat == __current_node->_M_tag)
+ {
+ ++__current_index;
+ if (int(_S_path_cache_len) == __current_index)
+ {
+ int __i;
+ for (__i = 0; __i < int(_S_path_cache_len) - 1; __i++)
+ __x._M_path_end[__i] = __x._M_path_end[__i+1];
+ --__current_index;
+ }
+ __current_node =
+ ((_Rope_RopeConcatenation<_CharT, _Alloc>*)__current_node)->_M_left;
+ __x._M_path_end[__current_index] = __current_node;
+ __dirns <<= 1;
+ // node_start_pos is unchanged.
+ }
+ __x._M_leaf_index = __current_index;
+ __x._M_leaf_pos = __node_start_pos;
+ __x._M_path_directions = __dirns;
+ _S_setbuf(__x);
+ }
+
+ template
+ void
+ _Rope_iterator_base<_CharT, _Alloc>::
+ _M_incr(size_t __n)
+ {
+ _M_current_pos += __n;
+ if (0 != _M_buf_ptr)
+ {
+ size_t __chars_left = _M_buf_end - _M_buf_ptr;
+ if (__chars_left > __n)
+ _M_buf_ptr += __n;
+ else if (__chars_left == __n)
+ {
+ _M_buf_ptr += __n;
+ _S_setcache_for_incr(*this);
+ }
+ else
+ _M_buf_ptr = 0;
+ }
+ }
+
+ template
+ void
+ _Rope_iterator_base<_CharT, _Alloc>::
+ _M_decr(size_t __n)
+ {
+ if (0 != _M_buf_ptr)
+ {
+ size_t __chars_left = _M_buf_ptr - _M_buf_start;
+ if (__chars_left >= __n)
+ _M_buf_ptr -= __n;
+ else
+ _M_buf_ptr = 0;
+ }
+ _M_current_pos -= __n;
+ }
+
+ template
+ void
+ _Rope_iterator<_CharT, _Alloc>::
+ _M_check()
+ {
+ if (_M_root_rope->_M_tree_ptr != this->_M_root)
+ {
+ // _Rope was modified. Get things fixed up.
+ _RopeRep::_S_unref(this->_M_root);
+ this->_M_root = _M_root_rope->_M_tree_ptr;
+ _RopeRep::_S_ref(this->_M_root);
+ this->_M_buf_ptr = 0;
+ }
+ }
+
+ template
+ inline
+ _Rope_const_iterator<_CharT, _Alloc>::
+ _Rope_const_iterator(const _Rope_iterator<_CharT, _Alloc>& __x)
+ : _Rope_iterator_base<_CharT, _Alloc>(__x)
+ { }
+
+ template
+ inline
+ _Rope_iterator<_CharT, _Alloc>::
+ _Rope_iterator(rope<_CharT, _Alloc>& __r, size_t __pos)
+ : _Rope_iterator_base<_CharT,_Alloc>(__r._M_tree_ptr, __pos),
+ _M_root_rope(&__r)
+ { _RopeRep::_S_ref(this->_M_root); }
+
+ template
+ inline size_t
+ rope<_CharT, _Alloc>::
+ _S_char_ptr_len(const _CharT* __s)
+ {
+ const _CharT* __p = __s;
+
+ while (!_S_is0(*__p))
+ ++__p;
+ return (__p - __s);
+ }
+
+
+#ifndef __GC
+
+ template
+ inline void
+ _Rope_RopeRep<_CharT, _Alloc>::
+ _M_free_c_string()
+ {
+ _CharT* __cstr = _M_c_string;
+ if (0 != __cstr)
+ {
+ size_t __size = this->_M_size + 1;
+ _Destroy(__cstr, __cstr + __size, _M_get_allocator());
+ this->_Data_deallocate(__cstr, __size);
+ }
+ }
+
+ template
+ inline void
+ _Rope_RopeRep<_CharT, _Alloc>::
+ _S_free_string(_CharT* __s, size_t __n, allocator_type& __a)
+ {
+ if (!_S_is_basic_char_type((_CharT*)0))
+ _Destroy(__s, __s + __n, __a);
+
+ // This has to be a static member, so this gets a bit messy
+ __a.deallocate(__s,
+ _Rope_RopeLeaf<_CharT, _Alloc>::_S_rounded_up_size(__n));
+ }
+
+ // There are several reasons for not doing this with virtual destructors
+ // and a class specific delete operator:
+ // - A class specific delete operator can't easily get access to
+ // allocator instances if we need them.
+ // - Any virtual function would need a 4 or byte vtable pointer;
+ // this only requires a one byte tag per object.
+ template
+ void
+ _Rope_RopeRep<_CharT, _Alloc>::
+ _M_free_tree()
+ {
+ switch(_M_tag)
+ {
+ case __detail::_S_leaf:
+ {
+ _Rope_RopeLeaf<_CharT, _Alloc>* __l
+ = (_Rope_RopeLeaf<_CharT, _Alloc>*)this;
+ __l->_Rope_RopeLeaf<_CharT, _Alloc>::~_Rope_RopeLeaf();
+ this->_L_deallocate(__l, 1);
+ break;
+ }
+ case __detail::_S_concat:
+ {
+ _Rope_RopeConcatenation<_CharT,_Alloc>* __c
+ = (_Rope_RopeConcatenation<_CharT, _Alloc>*)this;
+ __c->_Rope_RopeConcatenation<_CharT, _Alloc>::
+ ~_Rope_RopeConcatenation();
+ this->_C_deallocate(__c, 1);
+ break;
+ }
+ case __detail::_S_function:
+ {
+ _Rope_RopeFunction<_CharT, _Alloc>* __f
+ = (_Rope_RopeFunction<_CharT, _Alloc>*)this;
+ __f->_Rope_RopeFunction<_CharT, _Alloc>::~_Rope_RopeFunction();
+ this->_F_deallocate(__f, 1);
+ break;
+ }
+ case __detail::_S_substringfn:
+ {
+ _Rope_RopeSubstring<_CharT, _Alloc>* __ss =
+ (_Rope_RopeSubstring<_CharT, _Alloc>*)this;
+ __ss->_Rope_RopeSubstring<_CharT, _Alloc>::
+ ~_Rope_RopeSubstring();
+ this->_S_deallocate(__ss, 1);
+ break;
+ }
+ }
+ }
+#else
+
+ template
+ inline void
+ _Rope_RopeRep<_CharT, _Alloc>::
+ _S_free_string(const _CharT*, size_t, allocator_type)
+ { }
+
+#endif
+
+ // Concatenate a C string onto a leaf rope by copying the rope data.
+ // Used for short ropes.
+ template
+ typename rope<_CharT, _Alloc>::_RopeLeaf*
+ rope<_CharT, _Alloc>::
+ _S_leaf_concat_char_iter(_RopeLeaf* __r, const _CharT* __iter, size_t __len)
+ {
+ size_t __old_len = __r->_M_size;
+ _CharT* __new_data = (_CharT*)
+ rope::_Data_allocate(_S_rounded_up_size(__old_len + __len));
+ _RopeLeaf* __result;
+
+ uninitialized_copy_n(__r->_M_data, __old_len, __new_data);
+ uninitialized_copy_n(__iter, __len, __new_data + __old_len);
+ _S_cond_store_eos(__new_data[__old_len + __len]);
+ __try
+ {
+ __result = _S_new_RopeLeaf(__new_data, __old_len + __len,
+ __r->_M_get_allocator());
+ }
+ __catch(...)
+ {
+ _RopeRep::__STL_FREE_STRING(__new_data, __old_len + __len,
+ __r->_M_get_allocator());
+ __throw_exception_again;
+ }
+ return __result;
+ }
+
+#ifndef __GC
+ // As above, but it's OK to clobber original if refcount is 1
+ template
+ typename rope<_CharT,_Alloc>::_RopeLeaf*
+ rope<_CharT, _Alloc>::
+ _S_destr_leaf_concat_char_iter(_RopeLeaf* __r, const _CharT* __iter,
+ size_t __len)
+ {
+ if (__r->_M_ref_count > 1)
+ return _S_leaf_concat_char_iter(__r, __iter, __len);
+ size_t __old_len = __r->_M_size;
+ if (_S_allocated_capacity(__old_len) >= __old_len + __len)
+ {
+ // The space has been partially initialized for the standard
+ // character types. But that doesn't matter for those types.
+ uninitialized_copy_n(__iter, __len, __r->_M_data + __old_len);
+ if (_S_is_basic_char_type((_CharT*)0))
+ _S_cond_store_eos(__r->_M_data[__old_len + __len]);
+ else if (__r->_M_c_string != __r->_M_data && 0 != __r->_M_c_string)
+ {
+ __r->_M_free_c_string();
+ __r->_M_c_string = 0;
+ }
+ __r->_M_size = __old_len + __len;
+ __r->_M_ref_count = 2;
+ return __r;
+ }
+ else
+ {
+ _RopeLeaf* __result = _S_leaf_concat_char_iter(__r, __iter, __len);
+ return __result;
+ }
+ }
+#endif
+
+ // Assumes left and right are not 0.
+ // Does not increment (nor decrement on exception) child reference counts.
+ // Result has ref count 1.
+ template
+ typename rope<_CharT, _Alloc>::_RopeRep*
+ rope<_CharT, _Alloc>::
+ _S_tree_concat(_RopeRep* __left, _RopeRep* __right)
+ {
+ _RopeConcatenation* __result = _S_new_RopeConcatenation(__left, __right,
+ __left->
+ _M_get_allocator());
+ size_t __depth = __result->_M_depth;
+
+ if (__depth > 20
+ && (__result->_M_size < 1000
+ || __depth > size_t(__detail::_S_max_rope_depth)))
+ {
+ _RopeRep* __balanced;
+
+ __try
+ {
+ __balanced = _S_balance(__result);
+ __result->_M_unref_nonnil();
+ }
+ __catch(...)
+ {
+ rope::_C_deallocate(__result,1);
+ __throw_exception_again;
+ }
+ // In case of exception, we need to deallocate
+ // otherwise dangling result node. But caller
+ // still owns its children. Thus unref is
+ // inappropriate.
+ return __balanced;
+ }
+ else
+ return __result;
+ }
+
+ template
+ typename rope<_CharT, _Alloc>::_RopeRep*
+ rope<_CharT, _Alloc>::
+ _S_concat_char_iter(_RopeRep* __r, const _CharT*__s, size_t __slen)
+ {
+ _RopeRep* __result;
+ if (0 == __slen)
+ {
+ _S_ref(__r);
+ return __r;
+ }
+ if (0 == __r)
+ return __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen,
+ __r->_M_get_allocator());
+ if (__r->_M_tag == __detail::_S_leaf
+ && __r->_M_size + __slen <= size_t(_S_copy_max))
+ {
+ __result = _S_leaf_concat_char_iter((_RopeLeaf*)__r, __s, __slen);
+ return __result;
+ }
+ if (__detail::_S_concat == __r->_M_tag
+ && __detail::_S_leaf == ((_RopeConcatenation*) __r)->_M_right->_M_tag)
+ {
+ _RopeLeaf* __right =
+ (_RopeLeaf* )(((_RopeConcatenation* )__r)->_M_right);
+ if (__right->_M_size + __slen <= size_t(_S_copy_max))
+ {
+ _RopeRep* __left = ((_RopeConcatenation*)__r)->_M_left;
+ _RopeRep* __nright =
+ _S_leaf_concat_char_iter((_RopeLeaf*)__right, __s, __slen);
+ __left->_M_ref_nonnil();
+ __try
+ { __result = _S_tree_concat(__left, __nright); }
+ __catch(...)
+ {
+ _S_unref(__left);
+ _S_unref(__nright);
+ __throw_exception_again;
+ }
+ return __result;
+ }
+ }
+ _RopeRep* __nright =
+ __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen, __r->_M_get_allocator());
+ __try
+ {
+ __r->_M_ref_nonnil();
+ __result = _S_tree_concat(__r, __nright);
+ }
+ __catch(...)
+ {
+ _S_unref(__r);
+ _S_unref(__nright);
+ __throw_exception_again;
+ }
+ return __result;
+ }
+
+#ifndef __GC
+ template
+ typename rope<_CharT,_Alloc>::_RopeRep*
+ rope<_CharT,_Alloc>::
+ _S_destr_concat_char_iter(_RopeRep* __r, const _CharT* __s, size_t __slen)
+ {
+ _RopeRep* __result;
+ if (0 == __r)
+ return __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen,
+ __r->_M_get_allocator());
+ size_t __count = __r->_M_ref_count;
+ size_t __orig_size = __r->_M_size;
+ if (__count > 1)
+ return _S_concat_char_iter(__r, __s, __slen);
+ if (0 == __slen)
+ {
+ __r->_M_ref_count = 2; // One more than before
+ return __r;
+ }
+ if (__orig_size + __slen <= size_t(_S_copy_max)
+ && __detail::_S_leaf == __r->_M_tag)
+ {
+ __result = _S_destr_leaf_concat_char_iter((_RopeLeaf*)__r, __s,
+ __slen);
+ return __result;
+ }
+ if (__detail::_S_concat == __r->_M_tag)
+ {
+ _RopeLeaf* __right = (_RopeLeaf*)(((_RopeConcatenation*)
+ __r)->_M_right);
+ if (__detail::_S_leaf == __right->_M_tag
+ && __right->_M_size + __slen <= size_t(_S_copy_max))
+ {
+ _RopeRep* __new_right =
+ _S_destr_leaf_concat_char_iter(__right, __s, __slen);
+ if (__right == __new_right)
+ __new_right->_M_ref_count = 1;
+ else
+ __right->_M_unref_nonnil();
+ __r->_M_ref_count = 2; // One more than before.
+ ((_RopeConcatenation*)__r)->_M_right = __new_right;
+ __r->_M_size = __orig_size + __slen;
+ if (0 != __r->_M_c_string)
+ {
+ __r->_M_free_c_string();
+ __r->_M_c_string = 0;
+ }
+ return __r;
+ }
+ }
+ _RopeRep* __right =
+ __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __slen, __r->_M_get_allocator());
+ __r->_M_ref_nonnil();
+ __try
+ { __result = _S_tree_concat(__r, __right); }
+ __catch(...)
+ {
+ _S_unref(__r);
+ _S_unref(__right);
+ __throw_exception_again;
+ }
+ return __result;
+ }
+#endif /* !__GC */
+
+ template
+ typename rope<_CharT, _Alloc>::_RopeRep*
+ rope<_CharT, _Alloc>::
+ _S_concat(_RopeRep* __left, _RopeRep* __right)
+ {
+ if (0 == __left)
+ {
+ _S_ref(__right);
+ return __right;
+ }
+ if (0 == __right)
+ {
+ __left->_M_ref_nonnil();
+ return __left;
+ }
+ if (__detail::_S_leaf == __right->_M_tag)
+ {
+ if (__detail::_S_leaf == __left->_M_tag)
+ {
+ if (__right->_M_size + __left->_M_size <= size_t(_S_copy_max))
+ return _S_leaf_concat_char_iter((_RopeLeaf*)__left,
+ ((_RopeLeaf*)__right)->_M_data,
+ __right->_M_size);
+ }
+ else if (__detail::_S_concat == __left->_M_tag
+ && __detail::_S_leaf == ((_RopeConcatenation*)
+ __left)->_M_right->_M_tag)
+ {
+ _RopeLeaf* __leftright =
+ (_RopeLeaf*)(((_RopeConcatenation*)__left)->_M_right);
+ if (__leftright->_M_size
+ + __right->_M_size <= size_t(_S_copy_max))
+ {
+ _RopeRep* __leftleft = ((_RopeConcatenation*)__left)->_M_left;
+ _RopeRep* __rest = _S_leaf_concat_char_iter(__leftright,
+ ((_RopeLeaf*)
+ __right)->
+ _M_data,
+ __right->_M_size);
+ __leftleft->_M_ref_nonnil();
+ __try
+ { return(_S_tree_concat(__leftleft, __rest)); }
+ __catch(...)
+ {
+ _S_unref(__leftleft);
+ _S_unref(__rest);
+ __throw_exception_again;
+ }
+ }
+ }
+ }
+ __left->_M_ref_nonnil();
+ __right->_M_ref_nonnil();
+ __try
+ { return(_S_tree_concat(__left, __right)); }
+ __catch(...)
+ {
+ _S_unref(__left);
+ _S_unref(__right);
+ __throw_exception_again;
+ }
+ }
+
+ template
+ typename rope<_CharT, _Alloc>::_RopeRep*
+ rope<_CharT, _Alloc>::
+ _S_substring(_RopeRep* __base, size_t __start, size_t __endp1)
+ {
+ if (0 == __base)
+ return 0;
+ size_t __len = __base->_M_size;
+ size_t __adj_endp1;
+ const size_t __lazy_threshold = 128;
+
+ if (__endp1 >= __len)
+ {
+ if (0 == __start)
+ {
+ __base->_M_ref_nonnil();
+ return __base;
+ }
+ else
+ __adj_endp1 = __len;
+
+ }
+ else
+ __adj_endp1 = __endp1;
+
+ switch(__base->_M_tag)
+ {
+ case __detail::_S_concat:
+ {
+ _RopeConcatenation* __c = (_RopeConcatenation*)__base;
+ _RopeRep* __left = __c->_M_left;
+ _RopeRep* __right = __c->_M_right;
+ size_t __left_len = __left->_M_size;
+ _RopeRep* __result;
+
+ if (__adj_endp1 <= __left_len)
+ return _S_substring(__left, __start, __endp1);
+ else if (__start >= __left_len)
+ return _S_substring(__right, __start - __left_len,
+ __adj_endp1 - __left_len);
+ _Self_destruct_ptr __left_result(_S_substring(__left,
+ __start,
+ __left_len));
+ _Self_destruct_ptr __right_result(_S_substring(__right, 0,
+ __endp1
+ - __left_len));
+ __result = _S_concat(__left_result, __right_result);
+ return __result;
+ }
+ case __detail::_S_leaf:
+ {
+ _RopeLeaf* __l = (_RopeLeaf*)__base;
+ _RopeLeaf* __result;
+ size_t __result_len;
+ if (__start >= __adj_endp1)
+ return 0;
+ __result_len = __adj_endp1 - __start;
+ if (__result_len > __lazy_threshold)
+ goto lazy;
+#ifdef __GC
+ const _CharT* __section = __l->_M_data + __start;
+ __result = _S_new_RopeLeaf(__section, __result_len,
+ __base->_M_get_allocator());
+ __result->_M_c_string = 0; // Not eos terminated.
+#else
+ // We should sometimes create substring node instead.
+ __result = __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__l->_M_data + __start,
+ __result_len,
+ __base->
+ _M_get_allocator());
+#endif
+ return __result;
+ }
+ case __detail::_S_substringfn:
+ // Avoid introducing multiple layers of substring nodes.
+ {
+ _RopeSubstring* __old = (_RopeSubstring*)__base;
+ size_t __result_len;
+ if (__start >= __adj_endp1)
+ return 0;
+ __result_len = __adj_endp1 - __start;
+ if (__result_len > __lazy_threshold)
+ {
+ _RopeSubstring* __result =
+ _S_new_RopeSubstring(__old->_M_base,
+ __start + __old->_M_start,
+ __adj_endp1 - __start,
+ __base->_M_get_allocator());
+ return __result;
+
+ } // *** else fall through: ***
+ }
+ case __detail::_S_function:
+ {
+ _RopeFunction* __f = (_RopeFunction*)__base;
+ _CharT* __section;
+ size_t __result_len;
+ if (__start >= __adj_endp1)
+ return 0;
+ __result_len = __adj_endp1 - __start;
+
+ if (__result_len > __lazy_threshold)
+ goto lazy;
+ __section = (_CharT*)
+ rope::_Data_allocate(_S_rounded_up_size(__result_len));
+ __try
+ { (*(__f->_M_fn))(__start, __result_len, __section); }
+ __catch(...)
+ {
+ _RopeRep::__STL_FREE_STRING(__section, __result_len,
+ __base->_M_get_allocator());
+ __throw_exception_again;
+ }
+ _S_cond_store_eos(__section[__result_len]);
+ return _S_new_RopeLeaf(__section, __result_len,
+ __base->_M_get_allocator());
+ }
+ }
+ lazy:
+ {
+ // Create substring node.
+ return _S_new_RopeSubstring(__base, __start, __adj_endp1 - __start,
+ __base->_M_get_allocator());
+ }
+ }
+
+ template
+ class _Rope_flatten_char_consumer
+ : public _Rope_char_consumer<_CharT>
+ {
+ private:
+ _CharT* _M_buf_ptr;
+ public:
+
+ _Rope_flatten_char_consumer(_CharT* __buffer)
+ { _M_buf_ptr = __buffer; };
+
+ ~_Rope_flatten_char_consumer() {}
+
+ bool
+ operator()(const _CharT* __leaf, size_t __n)
+ {
+ uninitialized_copy_n(__leaf, __n, _M_buf_ptr);
+ _M_buf_ptr += __n;
+ return true;
+ }
+ };
+
+ template
+ class _Rope_find_char_char_consumer
+ : public _Rope_char_consumer<_CharT>
+ {
+ private:
+ _CharT _M_pattern;
+ public:
+ size_t _M_count; // Number of nonmatching characters
+
+ _Rope_find_char_char_consumer(_CharT __p)
+ : _M_pattern(__p), _M_count(0) {}
+
+ ~_Rope_find_char_char_consumer() {}
+
+ bool
+ operator()(const _CharT* __leaf, size_t __n)
+ {
+ size_t __i;
+ for (__i = 0; __i < __n; __i++)
+ {
+ if (__leaf[__i] == _M_pattern)
+ {
+ _M_count += __i;
+ return false;
+ }
+ }
+ _M_count += __n; return true;
+ }
+ };
+
+ template
+ // Here _CharT is both the stream and rope character type.
+ class _Rope_insert_char_consumer
+ : public _Rope_char_consumer<_CharT>
+ {
+ private:
+ typedef basic_ostream<_CharT,_Traits> _Insert_ostream;
+ _Insert_ostream& _M_o;
+ public:
+ _Rope_insert_char_consumer(_Insert_ostream& __writer)
+ : _M_o(__writer) {};
+ ~_Rope_insert_char_consumer() { };
+ // Caller is presumed to own the ostream
+ bool operator() (const _CharT* __leaf, size_t __n);
+ // Returns true to continue traversal.
+ };
+
+ template
+ bool
+ _Rope_insert_char_consumer<_CharT, _Traits>::
+ operator()(const _CharT* __leaf, size_t __n)
+ {
+ size_t __i;
+ // We assume that formatting is set up correctly for each element.
+ for (__i = 0; __i < __n; __i++)
+ _M_o.put(__leaf[__i]);
+ return true;
+ }
+
+ template
+ bool
+ rope<_CharT, _Alloc>::
+ _S_apply_to_pieces(_Rope_char_consumer<_CharT>& __c,
+ const _RopeRep* __r, size_t __begin, size_t __end)
+ {
+ if (0 == __r)
+ return true;
+ switch(__r->_M_tag)
+ {
+ case __detail::_S_concat:
+ {
+ _RopeConcatenation* __conc = (_RopeConcatenation*)__r;
+ _RopeRep* __left = __conc->_M_left;
+ size_t __left_len = __left->_M_size;
+ if (__begin < __left_len)
+ {
+ size_t __left_end = std::min(__left_len, __end);
+ if (!_S_apply_to_pieces(__c, __left, __begin, __left_end))
+ return false;
+ }
+ if (__end > __left_len)
+ {
+ _RopeRep* __right = __conc->_M_right;
+ size_t __right_start = std::max(__left_len, __begin);
+ if (!_S_apply_to_pieces(__c, __right,
+ __right_start - __left_len,
+ __end - __left_len))
+ return false;
+ }
+ }
+ return true;
+ case __detail::_S_leaf:
+ {
+ _RopeLeaf* __l = (_RopeLeaf*)__r;
+ return __c(__l->_M_data + __begin, __end - __begin);
+ }
+ case __detail::_S_function:
+ case __detail::_S_substringfn:
+ {
+ _RopeFunction* __f = (_RopeFunction*)__r;
+ size_t __len = __end - __begin;
+ bool __result;
+ _CharT* __buffer =
+ (_CharT*)_Alloc().allocate(__len * sizeof(_CharT));
+ __try
+ {
+ (*(__f->_M_fn))(__begin, __len, __buffer);
+ __result = __c(__buffer, __len);
+ _Alloc().deallocate(__buffer, __len * sizeof(_CharT));
+ }
+ __catch(...)
+ {
+ _Alloc().deallocate(__buffer, __len * sizeof(_CharT));
+ __throw_exception_again;
+ }
+ return __result;
+ }
+ default:
+ return false;
+ }
+ }
+
+ template
+ inline void
+ _Rope_fill(basic_ostream<_CharT, _Traits>& __o, size_t __n)
+ {
+ char __f = __o.fill();
+ size_t __i;
+
+ for (__i = 0; __i < __n; __i++)
+ __o.put(__f);
+ }
+
+
+ template
+ inline bool
+ _Rope_is_simple(_CharT*)
+ { return false; }
+
+ inline bool
+ _Rope_is_simple(char*)
+ { return true; }
+
+ inline bool
+ _Rope_is_simple(wchar_t*)
+ { return true; }
+
+ template
+ basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __o,
+ const rope<_CharT, _Alloc>& __r)
+ {
+ size_t __w = __o.width();
+ bool __left = bool(__o.flags() & std::ios::left);
+ size_t __pad_len;
+ size_t __rope_len = __r.size();
+ _Rope_insert_char_consumer<_CharT, _Traits> __c(__o);
+ bool __is_simple = _Rope_is_simple((_CharT*)0);
+
+ if (__rope_len < __w)
+ __pad_len = __w - __rope_len;
+ else
+ __pad_len = 0;
+
+ if (!__is_simple)
+ __o.width(__w / __rope_len);
+ __try
+ {
+ if (__is_simple && !__left && __pad_len > 0)
+ _Rope_fill(__o, __pad_len);
+ __r.apply_to_pieces(0, __r.size(), __c);
+ if (__is_simple && __left && __pad_len > 0)
+ _Rope_fill(__o, __pad_len);
+ if (!__is_simple)
+ __o.width(__w);
+ }
+ __catch(...)
+ {
+ if (!__is_simple)
+ __o.width(__w);
+ __throw_exception_again;
+ }
+ return __o;
+ }
+
+ template
+ _CharT*
+ rope<_CharT, _Alloc>::
+ _S_flatten(_RopeRep* __r, size_t __start, size_t __len,
+ _CharT* __buffer)
+ {
+ _Rope_flatten_char_consumer<_CharT> __c(__buffer);
+ _S_apply_to_pieces(__c, __r, __start, __start + __len);
+ return(__buffer + __len);
+ }
+
+ template
+ size_t
+ rope<_CharT, _Alloc>::
+ find(_CharT __pattern, size_t __start) const
+ {
+ _Rope_find_char_char_consumer<_CharT> __c(__pattern);
+ _S_apply_to_pieces(__c, this->_M_tree_ptr, __start, size());
+ size_type __result_pos = __start + __c._M_count;
+#ifndef __STL_OLD_ROPE_SEMANTICS
+ if (__result_pos == size())
+ __result_pos = npos;
+#endif
+ return __result_pos;
+ }
+
+ template
+ _CharT*
+ rope<_CharT, _Alloc>::
+ _S_flatten(_RopeRep* __r, _CharT* __buffer)
+ {
+ if (0 == __r)
+ return __buffer;
+ switch(__r->_M_tag)
+ {
+ case __detail::_S_concat:
+ {
+ _RopeConcatenation* __c = (_RopeConcatenation*)__r;
+ _RopeRep* __left = __c->_M_left;
+ _RopeRep* __right = __c->_M_right;
+ _CharT* __rest = _S_flatten(__left, __buffer);
+ return _S_flatten(__right, __rest);
+ }
+ case __detail::_S_leaf:
+ {
+ _RopeLeaf* __l = (_RopeLeaf*)__r;
+ return copy_n(__l->_M_data, __l->_M_size, __buffer).second;
+ }
+ case __detail::_S_function:
+ case __detail::_S_substringfn:
+ // We don't yet do anything with substring nodes.
+ // This needs to be fixed before ropefiles will work well.
+ {
+ _RopeFunction* __f = (_RopeFunction*)__r;
+ (*(__f->_M_fn))(0, __f->_M_size, __buffer);
+ return __buffer + __f->_M_size;
+ }
+ default:
+ return 0;
+ }
+ }
+
+ // This needs work for _CharT != char
+ template
+ void
+ rope<_CharT, _Alloc>::
+ _S_dump(_RopeRep* __r, int __indent)
+ {
+ for (int __i = 0; __i < __indent; __i++)
+ putchar(' ');
+ if (0 == __r)
+ {
+ printf("NULL\n");
+ return;
+ }
+ if (_S_concat == __r->_M_tag)
+ {
+ _RopeConcatenation* __c = (_RopeConcatenation*)__r;
+ _RopeRep* __left = __c->_M_left;
+ _RopeRep* __right = __c->_M_right;
+
+#ifdef __GC
+ printf("Concatenation %p (depth = %d, len = %ld, %s balanced)\n",
+ __r, __r->_M_depth, __r->_M_size,
+ __r->_M_is_balanced? "" : "not");
+#else
+ printf("Concatenation %p (rc = %ld, depth = %d, "
+ "len = %ld, %s balanced)\n",
+ __r, __r->_M_ref_count, __r->_M_depth, __r->_M_size,
+ __r->_M_is_balanced? "" : "not");
+#endif
+ _S_dump(__left, __indent + 2);
+ _S_dump(__right, __indent + 2);
+ return;
+ }
+ else
+ {
+ char* __kind;
+
+ switch (__r->_M_tag)
+ {
+ case __detail::_S_leaf:
+ __kind = "Leaf";
+ break;
+ case __detail::_S_function:
+ __kind = "Function";
+ break;
+ case __detail::_S_substringfn:
+ __kind = "Function representing substring";
+ break;
+ default:
+ __kind = "(corrupted kind field!)";
+ }
+#ifdef __GC
+ printf("%s %p (depth = %d, len = %ld) ",
+ __kind, __r, __r->_M_depth, __r->_M_size);
+#else
+ printf("%s %p (rc = %ld, depth = %d, len = %ld) ",
+ __kind, __r, __r->_M_ref_count, __r->_M_depth, __r->_M_size);
+#endif
+ if (_S_is_one_byte_char_type((_CharT*)0))
+ {
+ const int __max_len = 40;
+ _Self_destruct_ptr __prefix(_S_substring(__r, 0, __max_len));
+ _CharT __buffer[__max_len + 1];
+ bool __too_big = __r->_M_size > __prefix->_M_size;
+
+ _S_flatten(__prefix, __buffer);
+ __buffer[__prefix->_M_size] = _S_eos((_CharT*)0);
+ printf("%s%s\n", (char*)__buffer,
+ __too_big? "...\n" : "\n");
+ }
+ else
+ printf("\n");
+ }
+ }
+
+ template
+ const unsigned long
+ rope<_CharT, _Alloc>::
+ _S_min_len[int(__detail::_S_max_rope_depth) + 1] = {
+ /* 0 */1, /* 1 */2, /* 2 */3, /* 3 */5, /* 4 */8, /* 5 */13, /* 6 */21,
+ /* 7 */34, /* 8 */55, /* 9 */89, /* 10 */144, /* 11 */233, /* 12 */377,
+ /* 13 */610, /* 14 */987, /* 15 */1597, /* 16 */2584, /* 17 */4181,
+ /* 18 */6765, /* 19 */10946, /* 20 */17711, /* 21 */28657, /* 22 */46368,
+ /* 23 */75025, /* 24 */121393, /* 25 */196418, /* 26 */317811,
+ /* 27 */514229, /* 28 */832040, /* 29 */1346269, /* 30 */2178309,
+ /* 31 */3524578, /* 32 */5702887, /* 33 */9227465, /* 34 */14930352,
+ /* 35 */24157817, /* 36 */39088169, /* 37 */63245986, /* 38 */102334155,
+ /* 39 */165580141, /* 40 */267914296, /* 41 */433494437,
+ /* 42 */701408733, /* 43 */1134903170, /* 44 */1836311903,
+ /* 45 */2971215073u };
+ // These are Fibonacci numbers < 2**32.
+
+ template
+ typename rope<_CharT, _Alloc>::_RopeRep*
+ rope<_CharT, _Alloc>::
+ _S_balance(_RopeRep* __r)
+ {
+ _RopeRep* __forest[int(__detail::_S_max_rope_depth) + 1];
+ _RopeRep* __result = 0;
+ int __i;
+ // Invariant:
+ // The concatenation of forest in descending order is equal to __r.
+ // __forest[__i]._M_size >= _S_min_len[__i]
+ // __forest[__i]._M_depth = __i
+ // References from forest are included in refcount.
+
+ for (__i = 0; __i <= int(__detail::_S_max_rope_depth); ++__i)
+ __forest[__i] = 0;
+ __try
+ {
+ _S_add_to_forest(__r, __forest);
+ for (__i = 0; __i <= int(__detail::_S_max_rope_depth); ++__i)
+ if (0 != __forest[__i])
+ {
+#ifndef __GC
+ _Self_destruct_ptr __old(__result);
+#endif
+ __result = _S_concat(__forest[__i], __result);
+ __forest[__i]->_M_unref_nonnil();
+#if !defined(__GC) && defined(__EXCEPTIONS)
+ __forest[__i] = 0;
+#endif
+ }
+ }
+ __catch(...)
+ {
+ for(__i = 0; __i <= int(__detail::_S_max_rope_depth); __i++)
+ _S_unref(__forest[__i]);
+ __throw_exception_again;
+ }
+
+ if (__result->_M_depth > int(__detail::_S_max_rope_depth))
+ __throw_length_error(__N("rope::_S_balance"));
+ return(__result);
+ }
+
+ template
+ void
+ rope<_CharT, _Alloc>::
+ _S_add_to_forest(_RopeRep* __r, _RopeRep** __forest)
+ {
+ if (__r->_M_is_balanced)
+ {
+ _S_add_leaf_to_forest(__r, __forest);
+ return;
+ }
+
+ {
+ _RopeConcatenation* __c = (_RopeConcatenation*)__r;
+
+ _S_add_to_forest(__c->_M_left, __forest);
+ _S_add_to_forest(__c->_M_right, __forest);
+ }
+ }
+
+
+ template
+ void
+ rope<_CharT, _Alloc>::
+ _S_add_leaf_to_forest(_RopeRep* __r, _RopeRep** __forest)
+ {
+ _RopeRep* __insertee; // included in refcount
+ _RopeRep* __too_tiny = 0; // included in refcount
+ int __i; // forest[0..__i-1] is empty
+ size_t __s = __r->_M_size;
+
+ for (__i = 0; __s >= _S_min_len[__i+1]/* not this bucket */; ++__i)
+ {
+ if (0 != __forest[__i])
+ {
+#ifndef __GC
+ _Self_destruct_ptr __old(__too_tiny);
+#endif
+ __too_tiny = _S_concat_and_set_balanced(__forest[__i],
+ __too_tiny);
+ __forest[__i]->_M_unref_nonnil();
+ __forest[__i] = 0;
+ }
+ }
+ {
+#ifndef __GC
+ _Self_destruct_ptr __old(__too_tiny);
+#endif
+ __insertee = _S_concat_and_set_balanced(__too_tiny, __r);
+ }
+ // Too_tiny dead, and no longer included in refcount.
+ // Insertee is live and included.
+ for (;; ++__i)
+ {
+ if (0 != __forest[__i])
+ {
+#ifndef __GC
+ _Self_destruct_ptr __old(__insertee);
+#endif
+ __insertee = _S_concat_and_set_balanced(__forest[__i],
+ __insertee);
+ __forest[__i]->_M_unref_nonnil();
+ __forest[__i] = 0;
+ }
+ if (__i == int(__detail::_S_max_rope_depth)
+ || __insertee->_M_size < _S_min_len[__i+1])
+ {
+ __forest[__i] = __insertee;
+ // refcount is OK since __insertee is now dead.
+ return;
+ }
+ }
+ }
+
+ template
+ _CharT
+ rope<_CharT, _Alloc>::
+ _S_fetch(_RopeRep* __r, size_type __i)
+ {
+ __GC_CONST _CharT* __cstr = __r->_M_c_string;
+
+ if (0 != __cstr)
+ return __cstr[__i];
+ for(;;)
+ {
+ switch(__r->_M_tag)
+ {
+ case __detail::_S_concat:
+ {
+ _RopeConcatenation* __c = (_RopeConcatenation*)__r;
+ _RopeRep* __left = __c->_M_left;
+ size_t __left_len = __left->_M_size;
+
+ if (__i >= __left_len)
+ {
+ __i -= __left_len;
+ __r = __c->_M_right;
+ }
+ else
+ __r = __left;
+ }
+ break;
+ case __detail::_S_leaf:
+ {
+ _RopeLeaf* __l = (_RopeLeaf*)__r;
+ return __l->_M_data[__i];
+ }
+ case __detail::_S_function:
+ case __detail::_S_substringfn:
+ {
+ _RopeFunction* __f = (_RopeFunction*)__r;
+ _CharT __result;
+
+ (*(__f->_M_fn))(__i, 1, &__result);
+ return __result;
+ }
+ }
+ }
+ }
+
+#ifndef __GC
+ // Return a uniquely referenced character slot for the given
+ // position, or 0 if that's not possible.
+ template
+ _CharT*
+ rope<_CharT, _Alloc>::
+ _S_fetch_ptr(_RopeRep* __r, size_type __i)
+ {
+ _RopeRep* __clrstack[__detail::_S_max_rope_depth];
+ size_t __csptr = 0;
+
+ for(;;)
+ {
+ if (__r->_M_ref_count > 1)
+ return 0;
+ switch(__r->_M_tag)
+ {
+ case __detail::_S_concat:
+ {
+ _RopeConcatenation* __c = (_RopeConcatenation*)__r;
+ _RopeRep* __left = __c->_M_left;
+ size_t __left_len = __left->_M_size;
+
+ if (__c->_M_c_string != 0)
+ __clrstack[__csptr++] = __c;
+ if (__i >= __left_len)
+ {
+ __i -= __left_len;
+ __r = __c->_M_right;
+ }
+ else
+ __r = __left;
+ }
+ break;
+ case __detail::_S_leaf:
+ {
+ _RopeLeaf* __l = (_RopeLeaf*)__r;
+ if (__l->_M_c_string != __l->_M_data && __l->_M_c_string != 0)
+ __clrstack[__csptr++] = __l;
+ while (__csptr > 0)
+ {
+ -- __csptr;
+ _RopeRep* __d = __clrstack[__csptr];
+ __d->_M_free_c_string();
+ __d->_M_c_string = 0;
+ }
+ return __l->_M_data + __i;
+ }
+ case __detail::_S_function:
+ case __detail::_S_substringfn:
+ return 0;
+ }
+ }
+ }
+#endif /* __GC */
+
+ // The following could be implemented trivially using
+ // lexicographical_compare_3way.
+ // We do a little more work to avoid dealing with rope iterators for
+ // flat strings.
+ template
+ int
+ rope<_CharT, _Alloc>::
+ _S_compare (const _RopeRep* __left, const _RopeRep* __right)
+ {
+ size_t __left_len;
+ size_t __right_len;
+
+ if (0 == __right)
+ return 0 != __left;
+ if (0 == __left)
+ return -1;
+ __left_len = __left->_M_size;
+ __right_len = __right->_M_size;
+ if (__detail::_S_leaf == __left->_M_tag)
+ {
+ _RopeLeaf* __l = (_RopeLeaf*) __left;
+ if (__detail::_S_leaf == __right->_M_tag)
+ {
+ _RopeLeaf* __r = (_RopeLeaf*) __right;
+ return lexicographical_compare_3way(__l->_M_data,
+ __l->_M_data + __left_len,
+ __r->_M_data, __r->_M_data
+ + __right_len);
+ }
+ else
+ {
+ const_iterator __rstart(__right, 0);
+ const_iterator __rend(__right, __right_len);
+ return lexicographical_compare_3way(__l->_M_data, __l->_M_data
+ + __left_len,
+ __rstart, __rend);
+ }
+ }
+ else
+ {
+ const_iterator __lstart(__left, 0);
+ const_iterator __lend(__left, __left_len);
+ if (__detail::_S_leaf == __right->_M_tag)
+ {
+ _RopeLeaf* __r = (_RopeLeaf*) __right;
+ return lexicographical_compare_3way(__lstart, __lend,
+ __r->_M_data, __r->_M_data
+ + __right_len);
+ }
+ else
+ {
+ const_iterator __rstart(__right, 0);
+ const_iterator __rend(__right, __right_len);
+ return lexicographical_compare_3way(__lstart, __lend,
+ __rstart, __rend);
+ }
+ }
+ }
+
+ // Assignment to reference proxies.
+ template
+ _Rope_char_ref_proxy<_CharT, _Alloc>&
+ _Rope_char_ref_proxy<_CharT, _Alloc>::
+ operator=(_CharT __c)
+ {
+ _RopeRep* __old = _M_root->_M_tree_ptr;
+#ifndef __GC
+ // First check for the case in which everything is uniquely
+ // referenced. In that case we can do this destructively.
+ _CharT* __ptr = _My_rope::_S_fetch_ptr(__old, _M_pos);
+ if (0 != __ptr)
+ {
+ *__ptr = __c;
+ return *this;
+ }
+#endif
+ _Self_destruct_ptr __left(_My_rope::_S_substring(__old, 0, _M_pos));
+ _Self_destruct_ptr __right(_My_rope::_S_substring(__old, _M_pos + 1,
+ __old->_M_size));
+ _Self_destruct_ptr __result_left(_My_rope::
+ _S_destr_concat_char_iter(__left,
+ &__c, 1));
+
+ _RopeRep* __result = _My_rope::_S_concat(__result_left, __right);
+#ifndef __GC
+ _RopeRep::_S_unref(__old);
+#endif
+ _M_root->_M_tree_ptr = __result;
+ return *this;
+ }
+
+ template
+ inline _Rope_char_ref_proxy<_CharT, _Alloc>::
+ operator _CharT() const
+ {
+ if (_M_current_valid)
+ return _M_current;
+ else
+ return _My_rope::_S_fetch(_M_root->_M_tree_ptr, _M_pos);
+ }
+
+ template
+ _Rope_char_ptr_proxy<_CharT, _Alloc>
+ _Rope_char_ref_proxy<_CharT, _Alloc>::
+ operator&() const
+ { return _Rope_char_ptr_proxy<_CharT, _Alloc>(*this); }
+
+ template
+ rope<_CharT, _Alloc>::
+ rope(size_t __n, _CharT __c, const allocator_type& __a)
+ : _Base(__a)
+ {
+ rope<_CharT,_Alloc> __result;
+ const size_t __exponentiate_threshold = 32;
+ size_t __exponent;
+ size_t __rest;
+ _CharT* __rest_buffer;
+ _RopeRep* __remainder;
+ rope<_CharT, _Alloc> __remainder_rope;
+
+ if (0 == __n)
+ return;
+
+ __exponent = __n / __exponentiate_threshold;
+ __rest = __n % __exponentiate_threshold;
+ if (0 == __rest)
+ __remainder = 0;
+ else
+ {
+ __rest_buffer = this->_Data_allocate(_S_rounded_up_size(__rest));
+ __uninitialized_fill_n_a(__rest_buffer, __rest, __c,
+ _M_get_allocator());
+ _S_cond_store_eos(__rest_buffer[__rest]);
+ __try
+ { __remainder = _S_new_RopeLeaf(__rest_buffer, __rest,
+ _M_get_allocator()); }
+ __catch(...)
+ {
+ _RopeRep::__STL_FREE_STRING(__rest_buffer, __rest,
+ _M_get_allocator());
+ __throw_exception_again;
+ }
+ }
+ __remainder_rope._M_tree_ptr = __remainder;
+ if (__exponent != 0)
+ {
+ _CharT* __base_buffer =
+ this->_Data_allocate(_S_rounded_up_size(__exponentiate_threshold));
+ _RopeLeaf* __base_leaf;
+ rope __base_rope;
+ __uninitialized_fill_n_a(__base_buffer, __exponentiate_threshold, __c,
+ _M_get_allocator());
+ _S_cond_store_eos(__base_buffer[__exponentiate_threshold]);
+ __try
+ {
+ __base_leaf = _S_new_RopeLeaf(__base_buffer,
+ __exponentiate_threshold,
+ _M_get_allocator());
+ }
+ __catch(...)
+ {
+ _RopeRep::__STL_FREE_STRING(__base_buffer,
+ __exponentiate_threshold,
+ _M_get_allocator());
+ __throw_exception_again;
+ }
+ __base_rope._M_tree_ptr = __base_leaf;
+ if (1 == __exponent)
+ __result = __base_rope;
+ else
+ __result = power(__base_rope, __exponent,
+ _Rope_Concat_fn<_CharT, _Alloc>());
+
+ if (0 != __remainder)
+ __result += __remainder_rope;
+ }
+ else
+ __result = __remainder_rope;
+
+ this->_M_tree_ptr = __result._M_tree_ptr;
+ this->_M_tree_ptr->_M_ref_nonnil();
+ }
+
+ template
+ _CharT
+ rope<_CharT, _Alloc>::_S_empty_c_str[1];
+
+ template
+ const _CharT*
+ rope<_CharT, _Alloc>::
+ c_str() const
+ {
+ if (0 == this->_M_tree_ptr)
+ {
+ _S_empty_c_str[0] = _S_eos((_CharT*)0); // Possibly redundant,
+ // but probably fast.
+ return _S_empty_c_str;
+ }
+ __gthread_mutex_lock (&this->_M_tree_ptr->_M_c_string_lock);
+ __GC_CONST _CharT* __result = this->_M_tree_ptr->_M_c_string;
+ if (0 == __result)
+ {
+ size_t __s = size();
+ __result = this->_Data_allocate(__s + 1);
+ _S_flatten(this->_M_tree_ptr, __result);
+ __result[__s] = _S_eos((_CharT*)0);
+ this->_M_tree_ptr->_M_c_string = __result;
+ }
+ __gthread_mutex_unlock (&this->_M_tree_ptr->_M_c_string_lock);
+ return(__result);
+ }
+
+ template
+ const _CharT* rope<_CharT, _Alloc>::
+ replace_with_c_str()
+ {
+ if (0 == this->_M_tree_ptr)
+ {
+ _S_empty_c_str[0] = _S_eos((_CharT*)0);
+ return _S_empty_c_str;
+ }
+ __GC_CONST _CharT* __old_c_string = this->_M_tree_ptr->_M_c_string;
+ if (__detail::_S_leaf == this->_M_tree_ptr->_M_tag
+ && 0 != __old_c_string)
+ return(__old_c_string);
+ size_t __s = size();
+ _CharT* __result = this->_Data_allocate(_S_rounded_up_size(__s));
+ _S_flatten(this->_M_tree_ptr, __result);
+ __result[__s] = _S_eos((_CharT*)0);
+ this->_M_tree_ptr->_M_unref_nonnil();
+ this->_M_tree_ptr = _S_new_RopeLeaf(__result, __s,
+ this->_M_get_allocator());
+ return(__result);
+ }
+
+ // Algorithm specializations. More should be added.
+
+ template // was templated on CharT and Alloc
+ void // VC++ workaround
+ _Rope_rotate(_Rope_iterator __first,
+ _Rope_iterator __middle,
+ _Rope_iterator __last)
+ {
+ typedef typename _Rope_iterator::value_type _CharT;
+ typedef typename _Rope_iterator::_allocator_type _Alloc;
+
+ rope<_CharT, _Alloc>& __r(__first.container());
+ rope<_CharT, _Alloc> __prefix = __r.substr(0, __first.index());
+ rope<_CharT, _Alloc> __suffix =
+ __r.substr(__last.index(), __r.size() - __last.index());
+ rope<_CharT, _Alloc> __part1 =
+ __r.substr(__middle.index(), __last.index() - __middle.index());
+ rope<_CharT, _Alloc> __part2 =
+ __r.substr(__first.index(), __middle.index() - __first.index());
+ __r = __prefix;
+ __r += __part1;
+ __r += __part2;
+ __r += __suffix;
+ }
+
+#if !defined(__GNUC__)
+ // Appears to confuse g++
+ inline void
+ rotate(_Rope_iterator __first,
+ _Rope_iterator __middle,
+ _Rope_iterator __last)
+ { _Rope_rotate(__first, __middle, __last); }
+#endif
+
+# if 0
+ // Probably not useful for several reasons:
+ // - for SGIs 7.1 compiler and probably some others,
+ // this forces lots of rope instantiations, creating a
+ // code bloat and compile time problem. (Fixed in 7.2.)
+ // - wchar_t is 4 bytes wide on most UNIX platforms, making it
+ // unattractive for unicode strings. Unsigned short may be a better
+ // character type.
+ inline void
+ rotate(_Rope_iterator __first,
+ _Rope_iterator __middle,
+ _Rope_iterator __last)
+ { _Rope_rotate(__first, __middle, __last); }
+# endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace