91efdb828d
2008-07-15 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/36832 * include/ext/rope (_Destroy_const): Add. (rope<>::copy): Call it. * testsuite/ext/rope/36832.cc: New. From-SVN: r137829
2964 lines
86 KiB
C++
2964 lines
86 KiB
C++
// SGI's rope class -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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/*
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* Copyright (c) 1997
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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/** @file ext/rope
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* This file is a GNU extension to the Standard C++ Library (possibly
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* containing extensions from the HP/SGI STL subset).
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*/
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#ifndef _ROPE
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#define _ROPE 1
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#include <algorithm>
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#include <iosfwd>
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#include <bits/stl_construct.h>
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#include <bits/stl_uninitialized.h>
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#include <bits/stl_function.h>
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#include <bits/stl_numeric.h>
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#include <bits/allocator.h>
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#include <bits/gthr.h>
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#include <tr1/functional>
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# ifdef __GC
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# define __GC_CONST const
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# else
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# define __GC_CONST // constant except for deallocation
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# endif
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#include <ext/memory> // For uninitialized_copy_n
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_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
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namespace __detail
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{
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enum { _S_max_rope_depth = 45 };
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enum _Tag {_S_leaf, _S_concat, _S_substringfn, _S_function};
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} // namespace __detail
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using std::size_t;
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using std::ptrdiff_t;
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using std::allocator;
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using std::_Destroy;
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// See libstdc++/36832.
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template<typename _ForwardIterator, typename _Allocator>
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void
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_Destroy_const(_ForwardIterator __first,
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_ForwardIterator __last, _Allocator __alloc)
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{
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for (; __first != __last; ++__first)
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__alloc.destroy(&*__first);
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}
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template<typename _ForwardIterator, typename _Tp>
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inline void
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_Destroy_const(_ForwardIterator __first,
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_ForwardIterator __last, allocator<_Tp>)
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{ _Destroy(__first, __last); }
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// The _S_eos function is used for those functions that
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// convert to/from C-like strings to detect the end of the string.
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// The end-of-C-string character.
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// This is what the draft standard says it should be.
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template <class _CharT>
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inline _CharT
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_S_eos(_CharT*)
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{ return _CharT(); }
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// Test for basic character types.
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// For basic character types leaves having a trailing eos.
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template <class _CharT>
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inline bool
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_S_is_basic_char_type(_CharT*)
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{ return false; }
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template <class _CharT>
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inline bool
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_S_is_one_byte_char_type(_CharT*)
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{ return false; }
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inline bool
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_S_is_basic_char_type(char*)
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{ return true; }
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inline bool
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_S_is_one_byte_char_type(char*)
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{ return true; }
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inline bool
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_S_is_basic_char_type(wchar_t*)
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{ return true; }
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// Store an eos iff _CharT is a basic character type.
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// Do not reference _S_eos if it isn't.
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template <class _CharT>
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inline void
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_S_cond_store_eos(_CharT&) { }
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inline void
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_S_cond_store_eos(char& __c)
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{ __c = 0; }
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inline void
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_S_cond_store_eos(wchar_t& __c)
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{ __c = 0; }
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// char_producers are logically functions that generate a section of
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// a string. These can be converted to ropes. The resulting rope
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// invokes the char_producer on demand. This allows, for example,
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// files to be viewed as ropes without reading the entire file.
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template <class _CharT>
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class char_producer
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{
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public:
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virtual ~char_producer() { };
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virtual void
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operator()(size_t __start_pos, size_t __len,
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_CharT* __buffer) = 0;
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// Buffer should really be an arbitrary output iterator.
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// That way we could flatten directly into an ostream, etc.
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// This is thoroughly impossible, since iterator types don't
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// have runtime descriptions.
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};
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// Sequence buffers:
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//
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// Sequence must provide an append operation that appends an
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// array to the sequence. Sequence buffers are useful only if
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// appending an entire array is cheaper than appending element by element.
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// This is true for many string representations.
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// This should perhaps inherit from ostream<sequence::value_type>
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// and be implemented correspondingly, so that they can be used
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// for formatted. For the sake of portability, we don't do this yet.
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//
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// For now, sequence buffers behave as output iterators. But they also
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// behave a little like basic_ostringstream<sequence::value_type> and a
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// little like containers.
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template<class _Sequence, size_t _Buf_sz = 100>
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class sequence_buffer
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: public std::iterator<std::output_iterator_tag, void, void, void, void>
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{
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public:
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typedef typename _Sequence::value_type value_type;
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protected:
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_Sequence* _M_prefix;
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value_type _M_buffer[_Buf_sz];
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size_t _M_buf_count;
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public:
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void
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flush()
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{
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_M_prefix->append(_M_buffer, _M_buffer + _M_buf_count);
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_M_buf_count = 0;
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}
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~sequence_buffer()
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{ flush(); }
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sequence_buffer()
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: _M_prefix(0), _M_buf_count(0) { }
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sequence_buffer(const sequence_buffer& __x)
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{
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_M_prefix = __x._M_prefix;
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_M_buf_count = __x._M_buf_count;
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std::copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer);
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}
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sequence_buffer(sequence_buffer& __x)
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{
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__x.flush();
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_M_prefix = __x._M_prefix;
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_M_buf_count = 0;
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}
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sequence_buffer(_Sequence& __s)
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: _M_prefix(&__s), _M_buf_count(0) { }
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sequence_buffer&
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operator=(sequence_buffer& __x)
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{
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__x.flush();
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_M_prefix = __x._M_prefix;
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_M_buf_count = 0;
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return *this;
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}
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sequence_buffer&
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operator=(const sequence_buffer& __x)
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{
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_M_prefix = __x._M_prefix;
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_M_buf_count = __x._M_buf_count;
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std::copy(__x._M_buffer, __x._M_buffer + __x._M_buf_count, _M_buffer);
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return *this;
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}
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void
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push_back(value_type __x)
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{
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if (_M_buf_count < _Buf_sz)
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{
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_M_buffer[_M_buf_count] = __x;
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++_M_buf_count;
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}
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else
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{
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flush();
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_M_buffer[0] = __x;
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_M_buf_count = 1;
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}
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}
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void
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append(value_type* __s, size_t __len)
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{
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if (__len + _M_buf_count <= _Buf_sz)
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{
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size_t __i = _M_buf_count;
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for (size_t __j = 0; __j < __len; __i++, __j++)
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_M_buffer[__i] = __s[__j];
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_M_buf_count += __len;
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}
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else if (0 == _M_buf_count)
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_M_prefix->append(__s, __s + __len);
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else
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{
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flush();
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append(__s, __len);
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}
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}
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sequence_buffer&
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write(value_type* __s, size_t __len)
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{
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append(__s, __len);
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return *this;
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}
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sequence_buffer&
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put(value_type __x)
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{
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push_back(__x);
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return *this;
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}
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sequence_buffer&
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operator=(const value_type& __rhs)
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{
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push_back(__rhs);
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return *this;
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}
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sequence_buffer&
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operator*()
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{ return *this; }
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sequence_buffer&
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operator++()
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{ return *this; }
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sequence_buffer
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operator++(int)
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{ return *this; }
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};
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// The following should be treated as private, at least for now.
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template<class _CharT>
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class _Rope_char_consumer
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{
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public:
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// If we had member templates, these should not be virtual.
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// For now we need to use run-time parametrization where
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// compile-time would do. Hence this should all be private
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// for now.
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// The symmetry with char_producer is accidental and temporary.
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virtual ~_Rope_char_consumer() { };
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virtual bool
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operator()(const _CharT* __buffer, size_t __len) = 0;
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};
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// First a lot of forward declarations. The standard seems to require
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// much stricter "declaration before use" than many of the implementations
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// that preceded it.
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template<class _CharT, class _Alloc = allocator<_CharT> >
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class rope;
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template<class _CharT, class _Alloc>
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struct _Rope_RopeConcatenation;
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template<class _CharT, class _Alloc>
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struct _Rope_RopeLeaf;
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template<class _CharT, class _Alloc>
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struct _Rope_RopeFunction;
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template<class _CharT, class _Alloc>
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struct _Rope_RopeSubstring;
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template<class _CharT, class _Alloc>
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class _Rope_iterator;
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template<class _CharT, class _Alloc>
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class _Rope_const_iterator;
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template<class _CharT, class _Alloc>
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class _Rope_char_ref_proxy;
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template<class _CharT, class _Alloc>
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class _Rope_char_ptr_proxy;
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template<class _CharT, class _Alloc>
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bool
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operator==(const _Rope_char_ptr_proxy<_CharT, _Alloc>& __x,
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const _Rope_char_ptr_proxy<_CharT, _Alloc>& __y);
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template<class _CharT, class _Alloc>
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_Rope_const_iterator<_CharT, _Alloc>
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operator-(const _Rope_const_iterator<_CharT, _Alloc>& __x,
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ptrdiff_t __n);
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template<class _CharT, class _Alloc>
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_Rope_const_iterator<_CharT, _Alloc>
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operator+(const _Rope_const_iterator<_CharT, _Alloc>& __x,
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ptrdiff_t __n);
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template<class _CharT, class _Alloc>
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_Rope_const_iterator<_CharT, _Alloc>
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operator+(ptrdiff_t __n,
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const _Rope_const_iterator<_CharT, _Alloc>& __x);
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template<class _CharT, class _Alloc>
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bool
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operator==(const _Rope_const_iterator<_CharT, _Alloc>& __x,
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const _Rope_const_iterator<_CharT, _Alloc>& __y);
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template<class _CharT, class _Alloc>
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bool
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operator<(const _Rope_const_iterator<_CharT, _Alloc>& __x,
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const _Rope_const_iterator<_CharT, _Alloc>& __y);
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template<class _CharT, class _Alloc>
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ptrdiff_t
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operator-(const _Rope_const_iterator<_CharT, _Alloc>& __x,
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const _Rope_const_iterator<_CharT, _Alloc>& __y);
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template<class _CharT, class _Alloc>
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_Rope_iterator<_CharT, _Alloc>
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operator-(const _Rope_iterator<_CharT, _Alloc>& __x, ptrdiff_t __n);
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template<class _CharT, class _Alloc>
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_Rope_iterator<_CharT, _Alloc>
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operator+(const _Rope_iterator<_CharT, _Alloc>& __x, ptrdiff_t __n);
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template<class _CharT, class _Alloc>
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_Rope_iterator<_CharT, _Alloc>
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operator+(ptrdiff_t __n, const _Rope_iterator<_CharT, _Alloc>& __x);
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template<class _CharT, class _Alloc>
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bool
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operator==(const _Rope_iterator<_CharT, _Alloc>& __x,
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const _Rope_iterator<_CharT, _Alloc>& __y);
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template<class _CharT, class _Alloc>
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bool
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operator<(const _Rope_iterator<_CharT, _Alloc>& __x,
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const _Rope_iterator<_CharT, _Alloc>& __y);
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template<class _CharT, class _Alloc>
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ptrdiff_t
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operator-(const _Rope_iterator<_CharT, _Alloc>& __x,
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const _Rope_iterator<_CharT, _Alloc>& __y);
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template<class _CharT, class _Alloc>
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rope<_CharT, _Alloc>
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operator+(const rope<_CharT, _Alloc>& __left,
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const rope<_CharT, _Alloc>& __right);
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template<class _CharT, class _Alloc>
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rope<_CharT, _Alloc>
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operator+(const rope<_CharT, _Alloc>& __left, const _CharT* __right);
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template<class _CharT, class _Alloc>
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rope<_CharT, _Alloc>
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operator+(const rope<_CharT, _Alloc>& __left, _CharT __right);
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// Some helpers, so we can use power on ropes.
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// See below for why this isn't local to the implementation.
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// This uses a nonstandard refcount convention.
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// The result has refcount 0.
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template<class _CharT, class _Alloc>
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struct _Rope_Concat_fn
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: public std::binary_function<rope<_CharT, _Alloc>, rope<_CharT, _Alloc>,
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rope<_CharT, _Alloc> >
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{
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rope<_CharT, _Alloc>
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operator()(const rope<_CharT, _Alloc>& __x,
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const rope<_CharT, _Alloc>& __y)
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{ return __x + __y; }
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};
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template <class _CharT, class _Alloc>
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inline rope<_CharT, _Alloc>
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identity_element(_Rope_Concat_fn<_CharT, _Alloc>)
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{ return rope<_CharT, _Alloc>(); }
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// Class _Refcount_Base provides a type, _RC_t, a data member,
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// _M_ref_count, and member functions _M_incr and _M_decr, which perform
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// atomic preincrement/predecrement. The constructor initializes
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// _M_ref_count.
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struct _Refcount_Base
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{
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// The type _RC_t
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typedef size_t _RC_t;
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// The data member _M_ref_count
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volatile _RC_t _M_ref_count;
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// Constructor
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__gthread_mutex_t _M_ref_count_lock;
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_Refcount_Base(_RC_t __n) : _M_ref_count(__n), _M_ref_count_lock()
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{
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#ifdef __GTHREAD_MUTEX_INIT
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__gthread_mutex_t __tmp = __GTHREAD_MUTEX_INIT;
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_M_ref_count_lock = __tmp;
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#elif defined(__GTHREAD_MUTEX_INIT_FUNCTION)
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__GTHREAD_MUTEX_INIT_FUNCTION (&_M_ref_count_lock);
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#else
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#error __GTHREAD_MUTEX_INIT or __GTHREAD_MUTEX_INIT_FUNCTION should be defined by gthr.h abstraction layer, report problem to libstdc++@gcc.gnu.org.
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#endif
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}
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void
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_M_incr()
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{
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__gthread_mutex_lock(&_M_ref_count_lock);
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++_M_ref_count;
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__gthread_mutex_unlock(&_M_ref_count_lock);
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}
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_RC_t
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_M_decr()
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{
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__gthread_mutex_lock(&_M_ref_count_lock);
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volatile _RC_t __tmp = --_M_ref_count;
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__gthread_mutex_unlock(&_M_ref_count_lock);
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return __tmp;
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}
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};
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//
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// What follows should really be local to rope. Unfortunately,
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// that doesn't work, since it makes it impossible to define generic
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// equality on rope iterators. According to the draft standard, the
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// template parameters for such an equality operator cannot be inferred
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// from the occurrence of a member class as a parameter.
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// (SGI compilers in fact allow this, but the __result wouldn't be
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// portable.)
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// Similarly, some of the static member functions are member functions
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// only to avoid polluting the global namespace, and to circumvent
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// restrictions on type inference for template functions.
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//
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//
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// The internal data structure for representing a rope. This is
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// private to the implementation. A rope is really just a pointer
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// to one of these.
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//
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// A few basic functions for manipulating this data structure
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// are members of _RopeRep. Most of the more complex algorithms
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// are implemented as rope members.
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//
|
|
// Some of the static member functions of _RopeRep have identically
|
|
// named functions in rope that simply invoke the _RopeRep versions.
|
|
|
|
#define __ROPE_DEFINE_ALLOCS(__a) \
|
|
__ROPE_DEFINE_ALLOC(_CharT,_Data) /* character data */ \
|
|
typedef _Rope_RopeConcatenation<_CharT,__a> __C; \
|
|
__ROPE_DEFINE_ALLOC(__C,_C) \
|
|
typedef _Rope_RopeLeaf<_CharT,__a> __L; \
|
|
__ROPE_DEFINE_ALLOC(__L,_L) \
|
|
typedef _Rope_RopeFunction<_CharT,__a> __F; \
|
|
__ROPE_DEFINE_ALLOC(__F,_F) \
|
|
typedef _Rope_RopeSubstring<_CharT,__a> __S; \
|
|
__ROPE_DEFINE_ALLOC(__S,_S)
|
|
|
|
// Internal rope nodes potentially store a copy of the allocator
|
|
// instance used to allocate them. This is mostly redundant.
|
|
// But the alternative would be to pass allocator instances around
|
|
// in some form to nearly all internal functions, since any pointer
|
|
// assignment may result in a zero reference count and thus require
|
|
// deallocation.
|
|
|
|
#define __STATIC_IF_SGI_ALLOC /* not static */
|
|
|
|
template <class _CharT, class _Alloc>
|
|
struct _Rope_rep_base
|
|
: public _Alloc
|
|
{
|
|
typedef _Alloc allocator_type;
|
|
|
|
allocator_type
|
|
get_allocator() const
|
|
{ return *static_cast<const _Alloc*>(this); }
|
|
|
|
allocator_type&
|
|
_M_get_allocator()
|
|
{ return *static_cast<_Alloc*>(this); }
|
|
|
|
const allocator_type&
|
|
_M_get_allocator() const
|
|
{ return *static_cast<const _Alloc*>(this); }
|
|
|
|
_Rope_rep_base(size_t __size, const allocator_type&)
|
|
: _M_size(__size) { }
|
|
|
|
size_t _M_size;
|
|
|
|
# define __ROPE_DEFINE_ALLOC(_Tp, __name) \
|
|
typedef typename \
|
|
_Alloc::template rebind<_Tp>::other __name##Alloc; \
|
|
static _Tp* __name##_allocate(size_t __n) \
|
|
{ return __name##Alloc().allocate(__n); } \
|
|
static void __name##_deallocate(_Tp *__p, size_t __n) \
|
|
{ __name##Alloc().deallocate(__p, __n); }
|
|
__ROPE_DEFINE_ALLOCS(_Alloc)
|
|
# undef __ROPE_DEFINE_ALLOC
|
|
};
|
|
|
|
template<class _CharT, class _Alloc>
|
|
struct _Rope_RopeRep
|
|
: public _Rope_rep_base<_CharT, _Alloc>
|
|
# ifndef __GC
|
|
, _Refcount_Base
|
|
# endif
|
|
{
|
|
public:
|
|
__detail::_Tag _M_tag:8;
|
|
bool _M_is_balanced:8;
|
|
unsigned char _M_depth;
|
|
__GC_CONST _CharT* _M_c_string;
|
|
__gthread_mutex_t _M_c_string_lock;
|
|
/* Flattened version of string, if needed. */
|
|
/* typically 0. */
|
|
/* If it's not 0, then the memory is owned */
|
|
/* by this node. */
|
|
/* In the case of a leaf, this may point to */
|
|
/* the same memory as the data field. */
|
|
typedef typename _Rope_rep_base<_CharT, _Alloc>::allocator_type
|
|
allocator_type;
|
|
|
|
using _Rope_rep_base<_CharT, _Alloc>::get_allocator;
|
|
using _Rope_rep_base<_CharT, _Alloc>::_M_get_allocator;
|
|
|
|
_Rope_RopeRep(__detail::_Tag __t, int __d, bool __b, size_t __size,
|
|
const allocator_type& __a)
|
|
: _Rope_rep_base<_CharT, _Alloc>(__size, __a),
|
|
#ifndef __GC
|
|
_Refcount_Base(1),
|
|
#endif
|
|
_M_tag(__t), _M_is_balanced(__b), _M_depth(__d), _M_c_string(0)
|
|
#ifdef __GTHREAD_MUTEX_INIT
|
|
{
|
|
// Do not copy a POSIX/gthr mutex once in use. However, bits are bits.
|
|
__gthread_mutex_t __tmp = __GTHREAD_MUTEX_INIT;
|
|
_M_c_string_lock = __tmp;
|
|
}
|
|
#else
|
|
{ __GTHREAD_MUTEX_INIT_FUNCTION (&_M_c_string_lock); }
|
|
#endif
|
|
#ifdef __GC
|
|
void
|
|
_M_incr () { }
|
|
#endif
|
|
static void
|
|
_S_free_string(__GC_CONST _CharT*, size_t __len,
|
|
allocator_type& __a);
|
|
#define __STL_FREE_STRING(__s, __l, __a) _S_free_string(__s, __l, __a);
|
|
// Deallocate data section of a leaf.
|
|
// This shouldn't be a member function.
|
|
// But its hard to do anything else at the
|
|
// moment, because it's templatized w.r.t.
|
|
// an allocator.
|
|
// Does nothing if __GC is defined.
|
|
#ifndef __GC
|
|
void _M_free_c_string();
|
|
void _M_free_tree();
|
|
// Deallocate t. Assumes t is not 0.
|
|
void
|
|
_M_unref_nonnil()
|
|
{
|
|
if (0 == _M_decr())
|
|
_M_free_tree();
|
|
}
|
|
|
|
void
|
|
_M_ref_nonnil()
|
|
{ _M_incr(); }
|
|
|
|
static void
|
|
_S_unref(_Rope_RopeRep* __t)
|
|
{
|
|
if (0 != __t)
|
|
__t->_M_unref_nonnil();
|
|
}
|
|
|
|
static void
|
|
_S_ref(_Rope_RopeRep* __t)
|
|
{
|
|
if (0 != __t)
|
|
__t->_M_incr();
|
|
}
|
|
|
|
static void
|
|
_S_free_if_unref(_Rope_RopeRep* __t)
|
|
{
|
|
if (0 != __t && 0 == __t->_M_ref_count)
|
|
__t->_M_free_tree();
|
|
}
|
|
# else /* __GC */
|
|
void _M_unref_nonnil() { }
|
|
void _M_ref_nonnil() { }
|
|
static void _S_unref(_Rope_RopeRep*) { }
|
|
static void _S_ref(_Rope_RopeRep*) { }
|
|
static void _S_free_if_unref(_Rope_RopeRep*) { }
|
|
# endif
|
|
protected:
|
|
_Rope_RopeRep&
|
|
operator=(const _Rope_RopeRep&);
|
|
|
|
_Rope_RopeRep(const _Rope_RopeRep&);
|
|
};
|
|
|
|
template<class _CharT, class _Alloc>
|
|
struct _Rope_RopeLeaf
|
|
: public _Rope_RopeRep<_CharT, _Alloc>
|
|
{
|
|
public:
|
|
// Apparently needed by VC++
|
|
// The data fields of leaves are allocated with some
|
|
// extra space, to accommodate future growth and for basic
|
|
// character types, to hold a trailing eos character.
|
|
enum { _S_alloc_granularity = 8 };
|
|
|
|
static size_t
|
|
_S_rounded_up_size(size_t __n)
|
|
{
|
|
size_t __size_with_eos;
|
|
|
|
if (_S_is_basic_char_type((_CharT*)0))
|
|
__size_with_eos = __n + 1;
|
|
else
|
|
__size_with_eos = __n;
|
|
#ifdef __GC
|
|
return __size_with_eos;
|
|
#else
|
|
// Allow slop for in-place expansion.
|
|
return ((__size_with_eos + size_t(_S_alloc_granularity) - 1)
|
|
&~ (size_t(_S_alloc_granularity) - 1));
|
|
#endif
|
|
}
|
|
__GC_CONST _CharT* _M_data; /* Not necessarily 0 terminated. */
|
|
/* The allocated size is */
|
|
/* _S_rounded_up_size(size), except */
|
|
/* in the GC case, in which it */
|
|
/* doesn't matter. */
|
|
typedef typename _Rope_rep_base<_CharT,_Alloc>::allocator_type
|
|
allocator_type;
|
|
|
|
_Rope_RopeLeaf(__GC_CONST _CharT* __d, size_t __size,
|
|
const allocator_type& __a)
|
|
: _Rope_RopeRep<_CharT, _Alloc>(__detail::_S_leaf, 0, true,
|
|
__size, __a), _M_data(__d)
|
|
{
|
|
if (_S_is_basic_char_type((_CharT *)0))
|
|
{
|
|
// already eos terminated.
|
|
this->_M_c_string = __d;
|
|
}
|
|
}
|
|
// The constructor assumes that d has been allocated with
|
|
// the proper allocator and the properly padded size.
|
|
// In contrast, the destructor deallocates the data:
|
|
#ifndef __GC
|
|
~_Rope_RopeLeaf() throw()
|
|
{
|
|
if (_M_data != this->_M_c_string)
|
|
this->_M_free_c_string();
|
|
|
|
__STL_FREE_STRING(_M_data, this->_M_size, this->_M_get_allocator());
|
|
}
|
|
#endif
|
|
protected:
|
|
_Rope_RopeLeaf&
|
|
operator=(const _Rope_RopeLeaf&);
|
|
|
|
_Rope_RopeLeaf(const _Rope_RopeLeaf&);
|
|
};
|
|
|
|
template<class _CharT, class _Alloc>
|
|
struct _Rope_RopeConcatenation
|
|
: public _Rope_RopeRep<_CharT, _Alloc>
|
|
{
|
|
public:
|
|
_Rope_RopeRep<_CharT, _Alloc>* _M_left;
|
|
_Rope_RopeRep<_CharT, _Alloc>* _M_right;
|
|
|
|
typedef typename _Rope_rep_base<_CharT, _Alloc>::allocator_type
|
|
allocator_type;
|
|
|
|
_Rope_RopeConcatenation(_Rope_RopeRep<_CharT, _Alloc>* __l,
|
|
_Rope_RopeRep<_CharT, _Alloc>* __r,
|
|
const allocator_type& __a)
|
|
: _Rope_RopeRep<_CharT, _Alloc>(__detail::_S_concat,
|
|
std::max(__l->_M_depth,
|
|
__r->_M_depth) + 1,
|
|
false,
|
|
__l->_M_size + __r->_M_size, __a),
|
|
_M_left(__l), _M_right(__r)
|
|
{ }
|
|
#ifndef __GC
|
|
~_Rope_RopeConcatenation() throw()
|
|
{
|
|
this->_M_free_c_string();
|
|
_M_left->_M_unref_nonnil();
|
|
_M_right->_M_unref_nonnil();
|
|
}
|
|
#endif
|
|
protected:
|
|
_Rope_RopeConcatenation&
|
|
operator=(const _Rope_RopeConcatenation&);
|
|
|
|
_Rope_RopeConcatenation(const _Rope_RopeConcatenation&);
|
|
};
|
|
|
|
template<class _CharT, class _Alloc>
|
|
struct _Rope_RopeFunction
|
|
: public _Rope_RopeRep<_CharT, _Alloc>
|
|
{
|
|
public:
|
|
char_producer<_CharT>* _M_fn;
|
|
#ifndef __GC
|
|
bool _M_delete_when_done; // Char_producer is owned by the
|
|
// rope and should be explicitly
|
|
// deleted when the rope becomes
|
|
// inaccessible.
|
|
#else
|
|
// In the GC case, we either register the rope for
|
|
// finalization, or not. Thus the field is unnecessary;
|
|
// the information is stored in the collector data structures.
|
|
// We do need a finalization procedure to be invoked by the
|
|
// collector.
|
|
static void
|
|
_S_fn_finalization_proc(void * __tree, void *)
|
|
{ delete ((_Rope_RopeFunction *)__tree) -> _M_fn; }
|
|
#endif
|
|
typedef typename _Rope_rep_base<_CharT, _Alloc>::allocator_type
|
|
allocator_type;
|
|
|
|
_Rope_RopeFunction(char_producer<_CharT>* __f, size_t __size,
|
|
bool __d, const allocator_type& __a)
|
|
: _Rope_RopeRep<_CharT, _Alloc>(__detail::_S_function, 0, true, __size, __a)
|
|
, _M_fn(__f)
|
|
#ifndef __GC
|
|
, _M_delete_when_done(__d)
|
|
#endif
|
|
{
|
|
#ifdef __GC
|
|
if (__d)
|
|
{
|
|
GC_REGISTER_FINALIZER(this, _Rope_RopeFunction::
|
|
_S_fn_finalization_proc, 0, 0, 0);
|
|
}
|
|
#endif
|
|
}
|
|
#ifndef __GC
|
|
~_Rope_RopeFunction() throw()
|
|
{
|
|
this->_M_free_c_string();
|
|
if (_M_delete_when_done)
|
|
delete _M_fn;
|
|
}
|
|
# endif
|
|
protected:
|
|
_Rope_RopeFunction&
|
|
operator=(const _Rope_RopeFunction&);
|
|
|
|
_Rope_RopeFunction(const _Rope_RopeFunction&);
|
|
};
|
|
// Substring results are usually represented using just
|
|
// concatenation nodes. But in the case of very long flat ropes
|
|
// or ropes with a functional representation that isn't practical.
|
|
// In that case, we represent the __result as a special case of
|
|
// RopeFunction, whose char_producer points back to the rope itself.
|
|
// In all cases except repeated substring operations and
|
|
// deallocation, we treat the __result as a RopeFunction.
|
|
template<class _CharT, class _Alloc>
|
|
struct _Rope_RopeSubstring
|
|
: public _Rope_RopeFunction<_CharT, _Alloc>,
|
|
public char_producer<_CharT>
|
|
{
|
|
public:
|
|
// XXX this whole class should be rewritten.
|
|
_Rope_RopeRep<_CharT,_Alloc>* _M_base; // not 0
|
|
size_t _M_start;
|
|
|
|
virtual void
|
|
operator()(size_t __start_pos, size_t __req_len,
|
|
_CharT* __buffer)
|
|
{
|
|
switch(_M_base->_M_tag)
|
|
{
|
|
case __detail::_S_function:
|
|
case __detail::_S_substringfn:
|
|
{
|
|
char_producer<_CharT>* __fn =
|
|
((_Rope_RopeFunction<_CharT,_Alloc>*)_M_base)->_M_fn;
|
|
(*__fn)(__start_pos + _M_start, __req_len, __buffer);
|
|
}
|
|
break;
|
|
case __detail::_S_leaf:
|
|
{
|
|
__GC_CONST _CharT* __s =
|
|
((_Rope_RopeLeaf<_CharT,_Alloc>*)_M_base)->_M_data;
|
|
uninitialized_copy_n(__s + __start_pos + _M_start, __req_len,
|
|
__buffer);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
typedef typename _Rope_rep_base<_CharT, _Alloc>::allocator_type
|
|
allocator_type;
|
|
|
|
_Rope_RopeSubstring(_Rope_RopeRep<_CharT, _Alloc>* __b, size_t __s,
|
|
size_t __l, const allocator_type& __a)
|
|
: _Rope_RopeFunction<_CharT, _Alloc>(this, __l, false, __a),
|
|
char_producer<_CharT>(), _M_base(__b), _M_start(__s)
|
|
{
|
|
#ifndef __GC
|
|
_M_base->_M_ref_nonnil();
|
|
#endif
|
|
this->_M_tag = __detail::_S_substringfn;
|
|
}
|
|
virtual ~_Rope_RopeSubstring() throw()
|
|
{
|
|
#ifndef __GC
|
|
_M_base->_M_unref_nonnil();
|
|
// _M_free_c_string(); -- done by parent class
|
|
#endif
|
|
}
|
|
};
|
|
|
|
// Self-destructing pointers to Rope_rep.
|
|
// These are not conventional smart pointers. Their
|
|
// only purpose in life is to ensure that unref is called
|
|
// on the pointer either at normal exit or if an exception
|
|
// is raised. It is the caller's responsibility to
|
|
// adjust reference counts when these pointers are initialized
|
|
// or assigned to. (This convention significantly reduces
|
|
// the number of potentially expensive reference count
|
|
// updates.)
|
|
#ifndef __GC
|
|
template<class _CharT, class _Alloc>
|
|
struct _Rope_self_destruct_ptr
|
|
{
|
|
_Rope_RopeRep<_CharT, _Alloc>* _M_ptr;
|
|
|
|
~_Rope_self_destruct_ptr()
|
|
{ _Rope_RopeRep<_CharT, _Alloc>::_S_unref(_M_ptr); }
|
|
#ifdef __EXCEPTIONS
|
|
_Rope_self_destruct_ptr() : _M_ptr(0) { };
|
|
#else
|
|
_Rope_self_destruct_ptr() { };
|
|
#endif
|
|
_Rope_self_destruct_ptr(_Rope_RopeRep<_CharT, _Alloc>* __p)
|
|
: _M_ptr(__p) { }
|
|
|
|
_Rope_RopeRep<_CharT, _Alloc>&
|
|
operator*()
|
|
{ return *_M_ptr; }
|
|
|
|
_Rope_RopeRep<_CharT, _Alloc>*
|
|
operator->()
|
|
{ return _M_ptr; }
|
|
|
|
operator _Rope_RopeRep<_CharT, _Alloc>*()
|
|
{ return _M_ptr; }
|
|
|
|
_Rope_self_destruct_ptr&
|
|
operator=(_Rope_RopeRep<_CharT, _Alloc>* __x)
|
|
{ _M_ptr = __x; return *this; }
|
|
};
|
|
#endif
|
|
|
|
// Dereferencing a nonconst iterator has to return something
|
|
// that behaves almost like a reference. It's not possible to
|
|
// return an actual reference since assignment requires extra
|
|
// work. And we would get into the same problems as with the
|
|
// CD2 version of basic_string.
|
|
template<class _CharT, class _Alloc>
|
|
class _Rope_char_ref_proxy
|
|
{
|
|
friend class rope<_CharT, _Alloc>;
|
|
friend class _Rope_iterator<_CharT, _Alloc>;
|
|
friend class _Rope_char_ptr_proxy<_CharT, _Alloc>;
|
|
#ifdef __GC
|
|
typedef _Rope_RopeRep<_CharT, _Alloc>* _Self_destruct_ptr;
|
|
#else
|
|
typedef _Rope_self_destruct_ptr<_CharT, _Alloc> _Self_destruct_ptr;
|
|
#endif
|
|
typedef _Rope_RopeRep<_CharT, _Alloc> _RopeRep;
|
|
typedef rope<_CharT, _Alloc> _My_rope;
|
|
size_t _M_pos;
|
|
_CharT _M_current;
|
|
bool _M_current_valid;
|
|
_My_rope* _M_root; // The whole rope.
|
|
public:
|
|
_Rope_char_ref_proxy(_My_rope* __r, size_t __p)
|
|
: _M_pos(__p), _M_current(), _M_current_valid(false), _M_root(__r) { }
|
|
|
|
_Rope_char_ref_proxy(const _Rope_char_ref_proxy& __x)
|
|
: _M_pos(__x._M_pos), _M_current(__x._M_current),
|
|
_M_current_valid(false), _M_root(__x._M_root) { }
|
|
|
|
// Don't preserve cache if the reference can outlive the
|
|
// expression. We claim that's not possible without calling
|
|
// a copy constructor or generating reference to a proxy
|
|
// reference. We declare the latter to have undefined semantics.
|
|
_Rope_char_ref_proxy(_My_rope* __r, size_t __p, _CharT __c)
|
|
: _M_pos(__p), _M_current(__c), _M_current_valid(true), _M_root(__r) { }
|
|
|
|
inline operator _CharT () const;
|
|
|
|
_Rope_char_ref_proxy&
|
|
operator=(_CharT __c);
|
|
|
|
_Rope_char_ptr_proxy<_CharT, _Alloc> operator&() const;
|
|
|
|
_Rope_char_ref_proxy&
|
|
operator=(const _Rope_char_ref_proxy& __c)
|
|
{ return operator=((_CharT)__c); }
|
|
};
|
|
|
|
template<class _CharT, class __Alloc>
|
|
inline void
|
|
swap(_Rope_char_ref_proxy <_CharT, __Alloc > __a,
|
|
_Rope_char_ref_proxy <_CharT, __Alloc > __b)
|
|
{
|
|
_CharT __tmp = __a;
|
|
__a = __b;
|
|
__b = __tmp;
|
|
}
|
|
|
|
template<class _CharT, class _Alloc>
|
|
class _Rope_char_ptr_proxy
|
|
{
|
|
// XXX this class should be rewritten.
|
|
friend class _Rope_char_ref_proxy<_CharT, _Alloc>;
|
|
size_t _M_pos;
|
|
rope<_CharT,_Alloc>* _M_root; // The whole rope.
|
|
public:
|
|
_Rope_char_ptr_proxy(const _Rope_char_ref_proxy<_CharT,_Alloc>& __x)
|
|
: _M_pos(__x._M_pos), _M_root(__x._M_root) { }
|
|
|
|
_Rope_char_ptr_proxy(const _Rope_char_ptr_proxy& __x)
|
|
: _M_pos(__x._M_pos), _M_root(__x._M_root) { }
|
|
|
|
_Rope_char_ptr_proxy() { }
|
|
|
|
_Rope_char_ptr_proxy(_CharT* __x)
|
|
: _M_root(0), _M_pos(0) { }
|
|
|
|
_Rope_char_ptr_proxy&
|
|
operator=(const _Rope_char_ptr_proxy& __x)
|
|
{
|
|
_M_pos = __x._M_pos;
|
|
_M_root = __x._M_root;
|
|
return *this;
|
|
}
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend bool
|
|
operator==(const _Rope_char_ptr_proxy<_CharT2, _Alloc2>& __x,
|
|
const _Rope_char_ptr_proxy<_CharT2, _Alloc2>& __y);
|
|
|
|
_Rope_char_ref_proxy<_CharT, _Alloc> operator*() const
|
|
{ return _Rope_char_ref_proxy<_CharT, _Alloc>(_M_root, _M_pos); }
|
|
};
|
|
|
|
// Rope iterators:
|
|
// Unlike in the C version, we cache only part of the stack
|
|
// for rope iterators, since they must be efficiently copyable.
|
|
// When we run out of cache, we have to reconstruct the iterator
|
|
// value.
|
|
// Pointers from iterators are not included in reference counts.
|
|
// Iterators are assumed to be thread private. Ropes can
|
|
// be shared.
|
|
|
|
template<class _CharT, class _Alloc>
|
|
class _Rope_iterator_base
|
|
: public std::iterator<std::random_access_iterator_tag, _CharT>
|
|
{
|
|
friend class rope<_CharT, _Alloc>;
|
|
public:
|
|
typedef _Alloc _allocator_type; // used in _Rope_rotate, VC++ workaround
|
|
typedef _Rope_RopeRep<_CharT, _Alloc> _RopeRep;
|
|
// Borland doesn't want this to be protected.
|
|
protected:
|
|
enum { _S_path_cache_len = 4 }; // Must be <= 9.
|
|
enum { _S_iterator_buf_len = 15 };
|
|
size_t _M_current_pos;
|
|
_RopeRep* _M_root; // The whole rope.
|
|
size_t _M_leaf_pos; // Starting position for current leaf
|
|
__GC_CONST _CharT* _M_buf_start;
|
|
// Buffer possibly
|
|
// containing current char.
|
|
__GC_CONST _CharT* _M_buf_ptr;
|
|
// Pointer to current char in buffer.
|
|
// != 0 ==> buffer valid.
|
|
__GC_CONST _CharT* _M_buf_end;
|
|
// One past __last valid char in buffer.
|
|
// What follows is the path cache. We go out of our
|
|
// way to make this compact.
|
|
// Path_end contains the bottom section of the path from
|
|
// the root to the current leaf.
|
|
const _RopeRep* _M_path_end[_S_path_cache_len];
|
|
int _M_leaf_index; // Last valid __pos in path_end;
|
|
// _M_path_end[0] ... _M_path_end[leaf_index-1]
|
|
// point to concatenation nodes.
|
|
unsigned char _M_path_directions;
|
|
// (path_directions >> __i) & 1 is 1
|
|
// iff we got from _M_path_end[leaf_index - __i - 1]
|
|
// to _M_path_end[leaf_index - __i] by going to the
|
|
// __right. Assumes path_cache_len <= 9.
|
|
_CharT _M_tmp_buf[_S_iterator_buf_len];
|
|
// Short buffer for surrounding chars.
|
|
// This is useful primarily for
|
|
// RopeFunctions. We put the buffer
|
|
// here to avoid locking in the
|
|
// multithreaded case.
|
|
// The cached path is generally assumed to be valid
|
|
// only if the buffer is valid.
|
|
static void _S_setbuf(_Rope_iterator_base& __x);
|
|
// Set buffer contents given
|
|
// path cache.
|
|
static void _S_setcache(_Rope_iterator_base& __x);
|
|
// Set buffer contents and
|
|
// path cache.
|
|
static void _S_setcache_for_incr(_Rope_iterator_base& __x);
|
|
// As above, but assumes path
|
|
// cache is valid for previous posn.
|
|
_Rope_iterator_base() { }
|
|
|
|
_Rope_iterator_base(_RopeRep* __root, size_t __pos)
|
|
: _M_current_pos(__pos), _M_root(__root), _M_buf_ptr(0) { }
|
|
|
|
void _M_incr(size_t __n);
|
|
void _M_decr(size_t __n);
|
|
public:
|
|
size_t
|
|
index() const
|
|
{ return _M_current_pos; }
|
|
|
|
_Rope_iterator_base(const _Rope_iterator_base& __x)
|
|
{
|
|
if (0 != __x._M_buf_ptr)
|
|
*this = __x;
|
|
else
|
|
{
|
|
_M_current_pos = __x._M_current_pos;
|
|
_M_root = __x._M_root;
|
|
_M_buf_ptr = 0;
|
|
}
|
|
}
|
|
};
|
|
|
|
template<class _CharT, class _Alloc>
|
|
class _Rope_iterator;
|
|
|
|
template<class _CharT, class _Alloc>
|
|
class _Rope_const_iterator
|
|
: public _Rope_iterator_base<_CharT, _Alloc>
|
|
{
|
|
friend class rope<_CharT, _Alloc>;
|
|
protected:
|
|
typedef _Rope_RopeRep<_CharT, _Alloc> _RopeRep;
|
|
// The one from the base class may not be directly visible.
|
|
_Rope_const_iterator(const _RopeRep* __root, size_t __pos)
|
|
: _Rope_iterator_base<_CharT, _Alloc>(const_cast<_RopeRep*>(__root),
|
|
__pos)
|
|
// Only nonconst iterators modify root ref count
|
|
{ }
|
|
public:
|
|
typedef _CharT reference; // Really a value. Returning a reference
|
|
// Would be a mess, since it would have
|
|
// to be included in refcount.
|
|
typedef const _CharT* pointer;
|
|
|
|
public:
|
|
_Rope_const_iterator() { };
|
|
|
|
_Rope_const_iterator(const _Rope_const_iterator& __x)
|
|
: _Rope_iterator_base<_CharT,_Alloc>(__x) { }
|
|
|
|
_Rope_const_iterator(const _Rope_iterator<_CharT,_Alloc>& __x);
|
|
|
|
_Rope_const_iterator(const rope<_CharT, _Alloc>& __r, size_t __pos)
|
|
: _Rope_iterator_base<_CharT,_Alloc>(__r._M_tree_ptr, __pos) { }
|
|
|
|
_Rope_const_iterator&
|
|
operator=(const _Rope_const_iterator& __x)
|
|
{
|
|
if (0 != __x._M_buf_ptr)
|
|
*(static_cast<_Rope_iterator_base<_CharT, _Alloc>*>(this)) = __x;
|
|
else
|
|
{
|
|
this->_M_current_pos = __x._M_current_pos;
|
|
this->_M_root = __x._M_root;
|
|
this->_M_buf_ptr = 0;
|
|
}
|
|
return(*this);
|
|
}
|
|
|
|
reference
|
|
operator*()
|
|
{
|
|
if (0 == this->_M_buf_ptr)
|
|
_S_setcache(*this);
|
|
return *this->_M_buf_ptr;
|
|
}
|
|
|
|
// Without this const version, Rope iterators do not meet the
|
|
// requirements of an Input Iterator.
|
|
reference
|
|
operator*() const
|
|
{
|
|
return *const_cast<_Rope_const_iterator&>(*this);
|
|
}
|
|
|
|
_Rope_const_iterator&
|
|
operator++()
|
|
{
|
|
__GC_CONST _CharT* __next;
|
|
if (0 != this->_M_buf_ptr
|
|
&& (__next = this->_M_buf_ptr + 1) < this->_M_buf_end)
|
|
{
|
|
this->_M_buf_ptr = __next;
|
|
++this->_M_current_pos;
|
|
}
|
|
else
|
|
this->_M_incr(1);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_const_iterator&
|
|
operator+=(ptrdiff_t __n)
|
|
{
|
|
if (__n >= 0)
|
|
this->_M_incr(__n);
|
|
else
|
|
this->_M_decr(-__n);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_const_iterator&
|
|
operator--()
|
|
{
|
|
this->_M_decr(1);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_const_iterator&
|
|
operator-=(ptrdiff_t __n)
|
|
{
|
|
if (__n >= 0)
|
|
this->_M_decr(__n);
|
|
else
|
|
this->_M_incr(-__n);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_const_iterator
|
|
operator++(int)
|
|
{
|
|
size_t __old_pos = this->_M_current_pos;
|
|
this->_M_incr(1);
|
|
return _Rope_const_iterator<_CharT,_Alloc>(this->_M_root, __old_pos);
|
|
// This makes a subsequent dereference expensive.
|
|
// Perhaps we should instead copy the iterator
|
|
// if it has a valid cache?
|
|
}
|
|
|
|
_Rope_const_iterator
|
|
operator--(int)
|
|
{
|
|
size_t __old_pos = this->_M_current_pos;
|
|
this->_M_decr(1);
|
|
return _Rope_const_iterator<_CharT,_Alloc>(this->_M_root, __old_pos);
|
|
}
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend _Rope_const_iterator<_CharT2, _Alloc2>
|
|
operator-(const _Rope_const_iterator<_CharT2, _Alloc2>& __x,
|
|
ptrdiff_t __n);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend _Rope_const_iterator<_CharT2, _Alloc2>
|
|
operator+(const _Rope_const_iterator<_CharT2, _Alloc2>& __x,
|
|
ptrdiff_t __n);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend _Rope_const_iterator<_CharT2, _Alloc2>
|
|
operator+(ptrdiff_t __n,
|
|
const _Rope_const_iterator<_CharT2, _Alloc2>& __x);
|
|
|
|
reference
|
|
operator[](size_t __n)
|
|
{ return rope<_CharT, _Alloc>::_S_fetch(this->_M_root,
|
|
this->_M_current_pos + __n); }
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend bool
|
|
operator==(const _Rope_const_iterator<_CharT2, _Alloc2>& __x,
|
|
const _Rope_const_iterator<_CharT2, _Alloc2>& __y);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend bool
|
|
operator<(const _Rope_const_iterator<_CharT2, _Alloc2>& __x,
|
|
const _Rope_const_iterator<_CharT2, _Alloc2>& __y);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend ptrdiff_t
|
|
operator-(const _Rope_const_iterator<_CharT2, _Alloc2>& __x,
|
|
const _Rope_const_iterator<_CharT2, _Alloc2>& __y);
|
|
};
|
|
|
|
template<class _CharT, class _Alloc>
|
|
class _Rope_iterator
|
|
: public _Rope_iterator_base<_CharT, _Alloc>
|
|
{
|
|
friend class rope<_CharT, _Alloc>;
|
|
protected:
|
|
typedef typename _Rope_iterator_base<_CharT, _Alloc>::_RopeRep _RopeRep;
|
|
rope<_CharT, _Alloc>* _M_root_rope;
|
|
|
|
// root is treated as a cached version of this, and is used to
|
|
// detect changes to the underlying rope.
|
|
|
|
// Root is included in the reference count. This is necessary
|
|
// so that we can detect changes reliably. Unfortunately, it
|
|
// requires careful bookkeeping for the nonGC case.
|
|
_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);
|
|
if (!(__r -> empty()))
|
|
_S_setcache(*this);
|
|
}
|
|
|
|
void _M_check();
|
|
public:
|
|
typedef _Rope_char_ref_proxy<_CharT, _Alloc> reference;
|
|
typedef _Rope_char_ref_proxy<_CharT, _Alloc>* pointer;
|
|
|
|
rope<_CharT, _Alloc>&
|
|
container()
|
|
{ return *_M_root_rope; }
|
|
|
|
_Rope_iterator()
|
|
{
|
|
this->_M_root = 0; // Needed for reference counting.
|
|
};
|
|
|
|
_Rope_iterator(const _Rope_iterator& __x)
|
|
: _Rope_iterator_base<_CharT, _Alloc>(__x)
|
|
{
|
|
_M_root_rope = __x._M_root_rope;
|
|
_RopeRep::_S_ref(this->_M_root);
|
|
}
|
|
|
|
_Rope_iterator(rope<_CharT, _Alloc>& __r, size_t __pos);
|
|
|
|
~_Rope_iterator()
|
|
{ _RopeRep::_S_unref(this->_M_root); }
|
|
|
|
_Rope_iterator&
|
|
operator=(const _Rope_iterator& __x)
|
|
{
|
|
_RopeRep* __old = this->_M_root;
|
|
|
|
_RopeRep::_S_ref(__x._M_root);
|
|
if (0 != __x._M_buf_ptr)
|
|
{
|
|
_M_root_rope = __x._M_root_rope;
|
|
*(static_cast<_Rope_iterator_base<_CharT, _Alloc>*>(this)) = __x;
|
|
}
|
|
else
|
|
{
|
|
this->_M_current_pos = __x._M_current_pos;
|
|
this->_M_root = __x._M_root;
|
|
_M_root_rope = __x._M_root_rope;
|
|
this->_M_buf_ptr = 0;
|
|
}
|
|
_RopeRep::_S_unref(__old);
|
|
return(*this);
|
|
}
|
|
|
|
reference
|
|
operator*()
|
|
{
|
|
_M_check();
|
|
if (0 == this->_M_buf_ptr)
|
|
return _Rope_char_ref_proxy<_CharT, _Alloc>(_M_root_rope,
|
|
this->_M_current_pos);
|
|
else
|
|
return _Rope_char_ref_proxy<_CharT, _Alloc>(_M_root_rope,
|
|
this->_M_current_pos,
|
|
*this->_M_buf_ptr);
|
|
}
|
|
|
|
// See above comment.
|
|
reference
|
|
operator*() const
|
|
{
|
|
return *const_cast<_Rope_iterator&>(*this);
|
|
}
|
|
|
|
_Rope_iterator&
|
|
operator++()
|
|
{
|
|
this->_M_incr(1);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_iterator&
|
|
operator+=(ptrdiff_t __n)
|
|
{
|
|
if (__n >= 0)
|
|
this->_M_incr(__n);
|
|
else
|
|
this->_M_decr(-__n);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_iterator&
|
|
operator--()
|
|
{
|
|
this->_M_decr(1);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_iterator&
|
|
operator-=(ptrdiff_t __n)
|
|
{
|
|
if (__n >= 0)
|
|
this->_M_decr(__n);
|
|
else
|
|
this->_M_incr(-__n);
|
|
return *this;
|
|
}
|
|
|
|
_Rope_iterator
|
|
operator++(int)
|
|
{
|
|
size_t __old_pos = this->_M_current_pos;
|
|
this->_M_incr(1);
|
|
return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos);
|
|
}
|
|
|
|
_Rope_iterator
|
|
operator--(int)
|
|
{
|
|
size_t __old_pos = this->_M_current_pos;
|
|
this->_M_decr(1);
|
|
return _Rope_iterator<_CharT,_Alloc>(_M_root_rope, __old_pos);
|
|
}
|
|
|
|
reference
|
|
operator[](ptrdiff_t __n)
|
|
{ return _Rope_char_ref_proxy<_CharT, _Alloc>(_M_root_rope,
|
|
this->_M_current_pos
|
|
+ __n); }
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend bool
|
|
operator==(const _Rope_iterator<_CharT2, _Alloc2>& __x,
|
|
const _Rope_iterator<_CharT2, _Alloc2>& __y);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend bool
|
|
operator<(const _Rope_iterator<_CharT2, _Alloc2>& __x,
|
|
const _Rope_iterator<_CharT2, _Alloc2>& __y);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend ptrdiff_t
|
|
operator-(const _Rope_iterator<_CharT2, _Alloc2>& __x,
|
|
const _Rope_iterator<_CharT2, _Alloc2>& __y);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend _Rope_iterator<_CharT2, _Alloc2>
|
|
operator-(const _Rope_iterator<_CharT2, _Alloc2>& __x, ptrdiff_t __n);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend _Rope_iterator<_CharT2, _Alloc2>
|
|
operator+(const _Rope_iterator<_CharT2, _Alloc2>& __x, ptrdiff_t __n);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend _Rope_iterator<_CharT2, _Alloc2>
|
|
operator+(ptrdiff_t __n, const _Rope_iterator<_CharT2, _Alloc2>& __x);
|
|
};
|
|
|
|
|
|
template <class _CharT, class _Alloc>
|
|
struct _Rope_base
|
|
: public _Alloc
|
|
{
|
|
typedef _Alloc allocator_type;
|
|
|
|
allocator_type
|
|
get_allocator() const
|
|
{ return *static_cast<const _Alloc*>(this); }
|
|
|
|
allocator_type&
|
|
_M_get_allocator()
|
|
{ return *static_cast<_Alloc*>(this); }
|
|
|
|
const allocator_type&
|
|
_M_get_allocator() const
|
|
{ return *static_cast<const _Alloc*>(this); }
|
|
|
|
typedef _Rope_RopeRep<_CharT, _Alloc> _RopeRep;
|
|
// The one in _Base may not be visible due to template rules.
|
|
|
|
_Rope_base(_RopeRep* __t, const allocator_type&)
|
|
: _M_tree_ptr(__t) { }
|
|
|
|
_Rope_base(const allocator_type&) { }
|
|
|
|
// The only data member of a rope:
|
|
_RopeRep *_M_tree_ptr;
|
|
|
|
#define __ROPE_DEFINE_ALLOC(_Tp, __name) \
|
|
typedef typename \
|
|
_Alloc::template rebind<_Tp>::other __name##Alloc; \
|
|
static _Tp* __name##_allocate(size_t __n) \
|
|
{ return __name##Alloc().allocate(__n); } \
|
|
static void __name##_deallocate(_Tp *__p, size_t __n) \
|
|
{ __name##Alloc().deallocate(__p, __n); }
|
|
__ROPE_DEFINE_ALLOCS(_Alloc)
|
|
#undef __ROPE_DEFINE_ALLOC
|
|
|
|
protected:
|
|
_Rope_base&
|
|
operator=(const _Rope_base&);
|
|
|
|
_Rope_base(const _Rope_base&);
|
|
};
|
|
|
|
/**
|
|
* This is an SGI extension.
|
|
* @ingroup SGIextensions
|
|
* @doctodo
|
|
*/
|
|
template <class _CharT, class _Alloc>
|
|
class rope : public _Rope_base<_CharT, _Alloc>
|
|
{
|
|
public:
|
|
typedef _CharT value_type;
|
|
typedef ptrdiff_t difference_type;
|
|
typedef size_t size_type;
|
|
typedef _CharT const_reference;
|
|
typedef const _CharT* const_pointer;
|
|
typedef _Rope_iterator<_CharT, _Alloc> iterator;
|
|
typedef _Rope_const_iterator<_CharT, _Alloc> const_iterator;
|
|
typedef _Rope_char_ref_proxy<_CharT, _Alloc> reference;
|
|
typedef _Rope_char_ptr_proxy<_CharT, _Alloc> pointer;
|
|
|
|
friend class _Rope_iterator<_CharT, _Alloc>;
|
|
friend class _Rope_const_iterator<_CharT, _Alloc>;
|
|
friend struct _Rope_RopeRep<_CharT, _Alloc>;
|
|
friend class _Rope_iterator_base<_CharT, _Alloc>;
|
|
friend class _Rope_char_ptr_proxy<_CharT, _Alloc>;
|
|
friend class _Rope_char_ref_proxy<_CharT, _Alloc>;
|
|
friend struct _Rope_RopeSubstring<_CharT, _Alloc>;
|
|
|
|
protected:
|
|
typedef _Rope_base<_CharT, _Alloc> _Base;
|
|
typedef typename _Base::allocator_type allocator_type;
|
|
using _Base::_M_tree_ptr;
|
|
using _Base::get_allocator;
|
|
using _Base::_M_get_allocator;
|
|
typedef __GC_CONST _CharT* _Cstrptr;
|
|
|
|
static _CharT _S_empty_c_str[1];
|
|
|
|
static bool
|
|
_S_is0(_CharT __c)
|
|
{ return __c == _S_eos((_CharT*)0); }
|
|
|
|
enum { _S_copy_max = 23 };
|
|
// For strings shorter than _S_copy_max, we copy to
|
|
// concatenate.
|
|
|
|
typedef _Rope_RopeRep<_CharT, _Alloc> _RopeRep;
|
|
typedef _Rope_RopeConcatenation<_CharT, _Alloc> _RopeConcatenation;
|
|
typedef _Rope_RopeLeaf<_CharT, _Alloc> _RopeLeaf;
|
|
typedef _Rope_RopeFunction<_CharT, _Alloc> _RopeFunction;
|
|
typedef _Rope_RopeSubstring<_CharT, _Alloc> _RopeSubstring;
|
|
|
|
// Retrieve a character at the indicated position.
|
|
static _CharT _S_fetch(_RopeRep* __r, size_type __pos);
|
|
|
|
#ifndef __GC
|
|
// Obtain a pointer to the character at the indicated position.
|
|
// The pointer can be used to change the character.
|
|
// If such a pointer cannot be produced, as is frequently the
|
|
// case, 0 is returned instead.
|
|
// (Returns nonzero only if all nodes in the path have a refcount
|
|
// of 1.)
|
|
static _CharT* _S_fetch_ptr(_RopeRep* __r, size_type __pos);
|
|
#endif
|
|
|
|
static bool
|
|
_S_apply_to_pieces(// should be template parameter
|
|
_Rope_char_consumer<_CharT>& __c,
|
|
const _RopeRep* __r,
|
|
size_t __begin, size_t __end);
|
|
// begin and end are assumed to be in range.
|
|
|
|
#ifndef __GC
|
|
static void
|
|
_S_unref(_RopeRep* __t)
|
|
{ _RopeRep::_S_unref(__t); }
|
|
|
|
static void
|
|
_S_ref(_RopeRep* __t)
|
|
{ _RopeRep::_S_ref(__t); }
|
|
|
|
#else /* __GC */
|
|
static void _S_unref(_RopeRep*) { }
|
|
static void _S_ref(_RopeRep*) { }
|
|
#endif
|
|
|
|
#ifdef __GC
|
|
typedef _Rope_RopeRep<_CharT, _Alloc>* _Self_destruct_ptr;
|
|
#else
|
|
typedef _Rope_self_destruct_ptr<_CharT, _Alloc> _Self_destruct_ptr;
|
|
#endif
|
|
|
|
// _Result is counted in refcount.
|
|
static _RopeRep* _S_substring(_RopeRep* __base,
|
|
size_t __start, size_t __endp1);
|
|
|
|
static _RopeRep* _S_concat_char_iter(_RopeRep* __r,
|
|
const _CharT* __iter, size_t __slen);
|
|
// Concatenate rope and char ptr, copying __s.
|
|
// Should really take an arbitrary iterator.
|
|
// Result is counted in refcount.
|
|
static _RopeRep* _S_destr_concat_char_iter(_RopeRep* __r,
|
|
const _CharT* __iter,
|
|
size_t __slen)
|
|
// As above, but one reference to __r is about to be
|
|
// destroyed. Thus the pieces may be recycled if all
|
|
// relevant reference counts are 1.
|
|
#ifdef __GC
|
|
// We can't really do anything since refcounts are unavailable.
|
|
{ return _S_concat_char_iter(__r, __iter, __slen); }
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
static _RopeRep* _S_concat(_RopeRep* __left, _RopeRep* __right);
|
|
// General concatenation on _RopeRep. _Result
|
|
// has refcount of 1. Adjusts argument refcounts.
|
|
|
|
public:
|
|
void
|
|
apply_to_pieces(size_t __begin, size_t __end,
|
|
_Rope_char_consumer<_CharT>& __c) const
|
|
{ _S_apply_to_pieces(__c, this->_M_tree_ptr, __begin, __end); }
|
|
|
|
protected:
|
|
|
|
static size_t
|
|
_S_rounded_up_size(size_t __n)
|
|
{ return _RopeLeaf::_S_rounded_up_size(__n); }
|
|
|
|
static size_t
|
|
_S_allocated_capacity(size_t __n)
|
|
{
|
|
if (_S_is_basic_char_type((_CharT*)0))
|
|
return _S_rounded_up_size(__n) - 1;
|
|
else
|
|
return _S_rounded_up_size(__n);
|
|
|
|
}
|
|
|
|
// Allocate and construct a RopeLeaf using the supplied allocator
|
|
// Takes ownership of s instead of copying.
|
|
static _RopeLeaf*
|
|
_S_new_RopeLeaf(__GC_CONST _CharT *__s,
|
|
size_t __size, allocator_type& __a)
|
|
{
|
|
_RopeLeaf* __space = typename _Base::_LAlloc(__a).allocate(1);
|
|
return new(__space) _RopeLeaf(__s, __size, __a);
|
|
}
|
|
|
|
static _RopeConcatenation*
|
|
_S_new_RopeConcatenation(_RopeRep* __left, _RopeRep* __right,
|
|
allocator_type& __a)
|
|
{
|
|
_RopeConcatenation* __space = typename _Base::_CAlloc(__a).allocate(1);
|
|
return new(__space) _RopeConcatenation(__left, __right, __a);
|
|
}
|
|
|
|
static _RopeFunction*
|
|
_S_new_RopeFunction(char_producer<_CharT>* __f,
|
|
size_t __size, bool __d, allocator_type& __a)
|
|
{
|
|
_RopeFunction* __space = typename _Base::_FAlloc(__a).allocate(1);
|
|
return new(__space) _RopeFunction(__f, __size, __d, __a);
|
|
}
|
|
|
|
static _RopeSubstring*
|
|
_S_new_RopeSubstring(_Rope_RopeRep<_CharT,_Alloc>* __b, size_t __s,
|
|
size_t __l, allocator_type& __a)
|
|
{
|
|
_RopeSubstring* __space = typename _Base::_SAlloc(__a).allocate(1);
|
|
return new(__space) _RopeSubstring(__b, __s, __l, __a);
|
|
}
|
|
|
|
static _RopeLeaf*
|
|
_S_RopeLeaf_from_unowned_char_ptr(const _CharT *__s,
|
|
size_t __size, allocator_type& __a)
|
|
#define __STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __size, __a) \
|
|
_S_RopeLeaf_from_unowned_char_ptr(__s, __size, __a)
|
|
{
|
|
if (0 == __size)
|
|
return 0;
|
|
_CharT* __buf = __a.allocate(_S_rounded_up_size(__size));
|
|
|
|
__uninitialized_copy_n_a(__s, __size, __buf, __a);
|
|
_S_cond_store_eos(__buf[__size]);
|
|
try
|
|
{ return _S_new_RopeLeaf(__buf, __size, __a); }
|
|
catch(...)
|
|
{
|
|
_RopeRep::__STL_FREE_STRING(__buf, __size, __a);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
// Concatenation of nonempty strings.
|
|
// Always builds a concatenation node.
|
|
// Rebalances if the result is too deep.
|
|
// Result has refcount 1.
|
|
// Does not increment left and right ref counts even though
|
|
// they are referenced.
|
|
static _RopeRep*
|
|
_S_tree_concat(_RopeRep* __left, _RopeRep* __right);
|
|
|
|
// Concatenation helper functions
|
|
static _RopeLeaf*
|
|
_S_leaf_concat_char_iter(_RopeLeaf* __r,
|
|
const _CharT* __iter, size_t __slen);
|
|
// Concatenate by copying leaf.
|
|
// should take an arbitrary iterator
|
|
// result has refcount 1.
|
|
#ifndef __GC
|
|
static _RopeLeaf*
|
|
_S_destr_leaf_concat_char_iter(_RopeLeaf* __r,
|
|
const _CharT* __iter, size_t __slen);
|
|
// A version that potentially clobbers __r if __r->_M_ref_count == 1.
|
|
#endif
|
|
|
|
private:
|
|
|
|
static size_t _S_char_ptr_len(const _CharT* __s);
|
|
// slightly generalized strlen
|
|
|
|
rope(_RopeRep* __t, const allocator_type& __a = allocator_type())
|
|
: _Base(__t, __a) { }
|
|
|
|
|
|
// Copy __r to the _CharT buffer.
|
|
// Returns __buffer + __r->_M_size.
|
|
// Assumes that buffer is uninitialized.
|
|
static _CharT* _S_flatten(_RopeRep* __r, _CharT* __buffer);
|
|
|
|
// Again, with explicit starting position and length.
|
|
// Assumes that buffer is uninitialized.
|
|
static _CharT* _S_flatten(_RopeRep* __r,
|
|
size_t __start, size_t __len,
|
|
_CharT* __buffer);
|
|
|
|
static const unsigned long
|
|
_S_min_len[__detail::_S_max_rope_depth + 1];
|
|
|
|
static bool
|
|
_S_is_balanced(_RopeRep* __r)
|
|
{ return (__r->_M_size >= _S_min_len[__r->_M_depth]); }
|
|
|
|
static bool
|
|
_S_is_almost_balanced(_RopeRep* __r)
|
|
{ return (__r->_M_depth == 0
|
|
|| __r->_M_size >= _S_min_len[__r->_M_depth - 1]); }
|
|
|
|
static bool
|
|
_S_is_roughly_balanced(_RopeRep* __r)
|
|
{ return (__r->_M_depth <= 1
|
|
|| __r->_M_size >= _S_min_len[__r->_M_depth - 2]); }
|
|
|
|
// Assumes the result is not empty.
|
|
static _RopeRep*
|
|
_S_concat_and_set_balanced(_RopeRep* __left, _RopeRep* __right)
|
|
{
|
|
_RopeRep* __result = _S_concat(__left, __right);
|
|
if (_S_is_balanced(__result))
|
|
__result->_M_is_balanced = true;
|
|
return __result;
|
|
}
|
|
|
|
// The basic rebalancing operation. Logically copies the
|
|
// rope. The result has refcount of 1. The client will
|
|
// usually decrement the reference count of __r.
|
|
// The result is within height 2 of balanced by the above
|
|
// definition.
|
|
static _RopeRep* _S_balance(_RopeRep* __r);
|
|
|
|
// Add all unbalanced subtrees to the forest of balanced trees.
|
|
// Used only by balance.
|
|
static void _S_add_to_forest(_RopeRep*__r, _RopeRep** __forest);
|
|
|
|
// Add __r to forest, assuming __r is already balanced.
|
|
static void _S_add_leaf_to_forest(_RopeRep* __r, _RopeRep** __forest);
|
|
|
|
// Print to stdout, exposing structure
|
|
static void _S_dump(_RopeRep* __r, int __indent = 0);
|
|
|
|
// Return -1, 0, or 1 if __x < __y, __x == __y, or __x > __y resp.
|
|
static int _S_compare(const _RopeRep* __x, const _RopeRep* __y);
|
|
|
|
public:
|
|
bool
|
|
empty() const
|
|
{ return 0 == this->_M_tree_ptr; }
|
|
|
|
// Comparison member function. This is public only for those
|
|
// clients that need a ternary comparison. Others
|
|
// should use the comparison operators below.
|
|
int
|
|
compare(const rope& __y) const
|
|
{ return _S_compare(this->_M_tree_ptr, __y._M_tree_ptr); }
|
|
|
|
rope(const _CharT* __s, const allocator_type& __a = allocator_type())
|
|
: _Base(__a)
|
|
{
|
|
this->_M_tree_ptr =
|
|
__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, _S_char_ptr_len(__s),
|
|
_M_get_allocator());
|
|
}
|
|
|
|
rope(const _CharT* __s, size_t __len,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(__a)
|
|
{
|
|
this->_M_tree_ptr =
|
|
__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __len, _M_get_allocator());
|
|
}
|
|
|
|
// Should perhaps be templatized with respect to the iterator type
|
|
// and use Sequence_buffer. (It should perhaps use sequence_buffer
|
|
// even now.)
|
|
rope(const _CharT* __s, const _CharT* __e,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(__a)
|
|
{
|
|
this->_M_tree_ptr =
|
|
__STL_ROPE_FROM_UNOWNED_CHAR_PTR(__s, __e - __s, _M_get_allocator());
|
|
}
|
|
|
|
rope(const const_iterator& __s, const const_iterator& __e,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(_S_substring(__s._M_root, __s._M_current_pos,
|
|
__e._M_current_pos), __a)
|
|
{ }
|
|
|
|
rope(const iterator& __s, const iterator& __e,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(_S_substring(__s._M_root, __s._M_current_pos,
|
|
__e._M_current_pos), __a)
|
|
{ }
|
|
|
|
rope(_CharT __c, const allocator_type& __a = allocator_type())
|
|
: _Base(__a)
|
|
{
|
|
_CharT* __buf = this->_Data_allocate(_S_rounded_up_size(1));
|
|
|
|
_M_get_allocator().construct(__buf, __c);
|
|
try
|
|
{
|
|
this->_M_tree_ptr = _S_new_RopeLeaf(__buf, 1,
|
|
_M_get_allocator());
|
|
}
|
|
catch(...)
|
|
{
|
|
_RopeRep::__STL_FREE_STRING(__buf, 1, _M_get_allocator());
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
rope(size_t __n, _CharT __c,
|
|
const allocator_type& __a = allocator_type());
|
|
|
|
rope(const allocator_type& __a = allocator_type())
|
|
: _Base(0, __a) { }
|
|
|
|
// Construct a rope from a function that can compute its members
|
|
rope(char_producer<_CharT> *__fn, size_t __len, bool __delete_fn,
|
|
const allocator_type& __a = allocator_type())
|
|
: _Base(__a)
|
|
{
|
|
this->_M_tree_ptr = (0 == __len) ?
|
|
0 : _S_new_RopeFunction(__fn, __len, __delete_fn, __a);
|
|
}
|
|
|
|
rope(const rope& __x, const allocator_type& __a = allocator_type())
|
|
: _Base(__x._M_tree_ptr, __a)
|
|
{ _S_ref(this->_M_tree_ptr); }
|
|
|
|
~rope() throw()
|
|
{ _S_unref(this->_M_tree_ptr); }
|
|
|
|
rope&
|
|
operator=(const rope& __x)
|
|
{
|
|
_RopeRep* __old = this->_M_tree_ptr;
|
|
this->_M_tree_ptr = __x._M_tree_ptr;
|
|
_S_ref(this->_M_tree_ptr);
|
|
_S_unref(__old);
|
|
return *this;
|
|
}
|
|
|
|
void
|
|
clear()
|
|
{
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = 0;
|
|
}
|
|
|
|
void
|
|
push_back(_CharT __x)
|
|
{
|
|
_RopeRep* __old = this->_M_tree_ptr;
|
|
this->_M_tree_ptr
|
|
= _S_destr_concat_char_iter(this->_M_tree_ptr, &__x, 1);
|
|
_S_unref(__old);
|
|
}
|
|
|
|
void
|
|
pop_back()
|
|
{
|
|
_RopeRep* __old = this->_M_tree_ptr;
|
|
this->_M_tree_ptr = _S_substring(this->_M_tree_ptr,
|
|
0, this->_M_tree_ptr->_M_size - 1);
|
|
_S_unref(__old);
|
|
}
|
|
|
|
_CharT
|
|
back() const
|
|
{ return _S_fetch(this->_M_tree_ptr, this->_M_tree_ptr->_M_size - 1); }
|
|
|
|
void
|
|
push_front(_CharT __x)
|
|
{
|
|
_RopeRep* __old = this->_M_tree_ptr;
|
|
_RopeRep* __left =
|
|
__STL_ROPE_FROM_UNOWNED_CHAR_PTR(&__x, 1, _M_get_allocator());
|
|
try
|
|
{
|
|
this->_M_tree_ptr = _S_concat(__left, this->_M_tree_ptr);
|
|
_S_unref(__old);
|
|
_S_unref(__left);
|
|
}
|
|
catch(...)
|
|
{
|
|
_S_unref(__left);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
void
|
|
pop_front()
|
|
{
|
|
_RopeRep* __old = this->_M_tree_ptr;
|
|
this->_M_tree_ptr
|
|
= _S_substring(this->_M_tree_ptr, 1, this->_M_tree_ptr->_M_size);
|
|
_S_unref(__old);
|
|
}
|
|
|
|
_CharT
|
|
front() const
|
|
{ return _S_fetch(this->_M_tree_ptr, 0); }
|
|
|
|
void
|
|
balance()
|
|
{
|
|
_RopeRep* __old = this->_M_tree_ptr;
|
|
this->_M_tree_ptr = _S_balance(this->_M_tree_ptr);
|
|
_S_unref(__old);
|
|
}
|
|
|
|
void
|
|
copy(_CharT* __buffer) const
|
|
{
|
|
_Destroy_const(__buffer, __buffer + size(), _M_get_allocator());
|
|
_S_flatten(this->_M_tree_ptr, __buffer);
|
|
}
|
|
|
|
// This is the copy function from the standard, but
|
|
// with the arguments reordered to make it consistent with the
|
|
// rest of the interface.
|
|
// Note that this guaranteed not to compile if the draft standard
|
|
// order is assumed.
|
|
size_type
|
|
copy(size_type __pos, size_type __n, _CharT* __buffer) const
|
|
{
|
|
size_t __size = size();
|
|
size_t __len = (__pos + __n > __size? __size - __pos : __n);
|
|
|
|
_Destroy_const(__buffer, __buffer + __len, _M_get_allocator());
|
|
_S_flatten(this->_M_tree_ptr, __pos, __len, __buffer);
|
|
return __len;
|
|
}
|
|
|
|
// Print to stdout, exposing structure. May be useful for
|
|
// performance debugging.
|
|
void
|
|
dump()
|
|
{ _S_dump(this->_M_tree_ptr); }
|
|
|
|
// Convert to 0 terminated string in new allocated memory.
|
|
// Embedded 0s in the input do not terminate the copy.
|
|
const _CharT* c_str() const;
|
|
|
|
// As above, but also use the flattened representation as
|
|
// the new rope representation.
|
|
const _CharT* replace_with_c_str();
|
|
|
|
// Reclaim memory for the c_str generated flattened string.
|
|
// Intentionally undocumented, since it's hard to say when this
|
|
// is safe for multiple threads.
|
|
void
|
|
delete_c_str ()
|
|
{
|
|
if (0 == this->_M_tree_ptr)
|
|
return;
|
|
if (__detail::_S_leaf == this->_M_tree_ptr->_M_tag &&
|
|
((_RopeLeaf*)this->_M_tree_ptr)->_M_data ==
|
|
this->_M_tree_ptr->_M_c_string)
|
|
{
|
|
// Representation shared
|
|
return;
|
|
}
|
|
#ifndef __GC
|
|
this->_M_tree_ptr->_M_free_c_string();
|
|
#endif
|
|
this->_M_tree_ptr->_M_c_string = 0;
|
|
}
|
|
|
|
_CharT
|
|
operator[] (size_type __pos) const
|
|
{ return _S_fetch(this->_M_tree_ptr, __pos); }
|
|
|
|
_CharT
|
|
at(size_type __pos) const
|
|
{
|
|
// if (__pos >= size()) throw out_of_range; // XXX
|
|
return (*this)[__pos];
|
|
}
|
|
|
|
const_iterator
|
|
begin() const
|
|
{ return(const_iterator(this->_M_tree_ptr, 0)); }
|
|
|
|
// An easy way to get a const iterator from a non-const container.
|
|
const_iterator
|
|
const_begin() const
|
|
{ return(const_iterator(this->_M_tree_ptr, 0)); }
|
|
|
|
const_iterator
|
|
end() const
|
|
{ return(const_iterator(this->_M_tree_ptr, size())); }
|
|
|
|
const_iterator
|
|
const_end() const
|
|
{ return(const_iterator(this->_M_tree_ptr, size())); }
|
|
|
|
size_type
|
|
size() const
|
|
{ return(0 == this->_M_tree_ptr? 0 : this->_M_tree_ptr->_M_size); }
|
|
|
|
size_type
|
|
length() const
|
|
{ return size(); }
|
|
|
|
size_type
|
|
max_size() const
|
|
{
|
|
return _S_min_len[int(__detail::_S_max_rope_depth) - 1] - 1;
|
|
// Guarantees that the result can be sufficiently
|
|
// balanced. Longer ropes will probably still work,
|
|
// but it's harder to make guarantees.
|
|
}
|
|
|
|
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
|
|
|
|
const_reverse_iterator
|
|
rbegin() const
|
|
{ return const_reverse_iterator(end()); }
|
|
|
|
const_reverse_iterator
|
|
const_rbegin() const
|
|
{ return const_reverse_iterator(end()); }
|
|
|
|
const_reverse_iterator
|
|
rend() const
|
|
{ return const_reverse_iterator(begin()); }
|
|
|
|
const_reverse_iterator
|
|
const_rend() const
|
|
{ return const_reverse_iterator(begin()); }
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend rope<_CharT2, _Alloc2>
|
|
operator+(const rope<_CharT2, _Alloc2>& __left,
|
|
const rope<_CharT2, _Alloc2>& __right);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend rope<_CharT2, _Alloc2>
|
|
operator+(const rope<_CharT2, _Alloc2>& __left, const _CharT2* __right);
|
|
|
|
template<class _CharT2, class _Alloc2>
|
|
friend rope<_CharT2, _Alloc2>
|
|
operator+(const rope<_CharT2, _Alloc2>& __left, _CharT2 __right);
|
|
|
|
// The symmetric cases are intentionally omitted, since they're
|
|
// presumed to be less common, and we don't handle them as well.
|
|
|
|
// The following should really be templatized. The first
|
|
// argument should be an input iterator or forward iterator with
|
|
// value_type _CharT.
|
|
rope&
|
|
append(const _CharT* __iter, size_t __n)
|
|
{
|
|
_RopeRep* __result =
|
|
_S_destr_concat_char_iter(this->_M_tree_ptr, __iter, __n);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
return *this;
|
|
}
|
|
|
|
rope&
|
|
append(const _CharT* __c_string)
|
|
{
|
|
size_t __len = _S_char_ptr_len(__c_string);
|
|
append(__c_string, __len);
|
|
return(*this);
|
|
}
|
|
|
|
rope&
|
|
append(const _CharT* __s, const _CharT* __e)
|
|
{
|
|
_RopeRep* __result =
|
|
_S_destr_concat_char_iter(this->_M_tree_ptr, __s, __e - __s);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
return *this;
|
|
}
|
|
|
|
rope&
|
|
append(const_iterator __s, const_iterator __e)
|
|
{
|
|
_Self_destruct_ptr __appendee(_S_substring(__s._M_root,
|
|
__s._M_current_pos,
|
|
__e._M_current_pos));
|
|
_RopeRep* __result = _S_concat(this->_M_tree_ptr,
|
|
(_RopeRep*)__appendee);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
return *this;
|
|
}
|
|
|
|
rope&
|
|
append(_CharT __c)
|
|
{
|
|
_RopeRep* __result =
|
|
_S_destr_concat_char_iter(this->_M_tree_ptr, &__c, 1);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
return *this;
|
|
}
|
|
|
|
rope&
|
|
append()
|
|
{ return append(_CharT()); } // XXX why?
|
|
|
|
rope&
|
|
append(const rope& __y)
|
|
{
|
|
_RopeRep* __result = _S_concat(this->_M_tree_ptr, __y._M_tree_ptr);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
return *this;
|
|
}
|
|
|
|
rope&
|
|
append(size_t __n, _CharT __c)
|
|
{
|
|
rope<_CharT,_Alloc> __last(__n, __c);
|
|
return append(__last);
|
|
}
|
|
|
|
void
|
|
swap(rope& __b)
|
|
{
|
|
_RopeRep* __tmp = this->_M_tree_ptr;
|
|
this->_M_tree_ptr = __b._M_tree_ptr;
|
|
__b._M_tree_ptr = __tmp;
|
|
}
|
|
|
|
protected:
|
|
// Result is included in refcount.
|
|
static _RopeRep*
|
|
replace(_RopeRep* __old, size_t __pos1,
|
|
size_t __pos2, _RopeRep* __r)
|
|
{
|
|
if (0 == __old)
|
|
{
|
|
_S_ref(__r);
|
|
return __r;
|
|
}
|
|
_Self_destruct_ptr __left(_S_substring(__old, 0, __pos1));
|
|
_Self_destruct_ptr __right(_S_substring(__old, __pos2, __old->_M_size));
|
|
_RopeRep* __result;
|
|
|
|
if (0 == __r)
|
|
__result = _S_concat(__left, __right);
|
|
else
|
|
{
|
|
_Self_destruct_ptr __left_result(_S_concat(__left, __r));
|
|
__result = _S_concat(__left_result, __right);
|
|
}
|
|
return __result;
|
|
}
|
|
|
|
public:
|
|
void
|
|
insert(size_t __p, const rope& __r)
|
|
{
|
|
_RopeRep* __result =
|
|
replace(this->_M_tree_ptr, __p, __p, __r._M_tree_ptr);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
}
|
|
|
|
void
|
|
insert(size_t __p, size_t __n, _CharT __c)
|
|
{
|
|
rope<_CharT,_Alloc> __r(__n,__c);
|
|
insert(__p, __r);
|
|
}
|
|
|
|
void
|
|
insert(size_t __p, const _CharT* __i, size_t __n)
|
|
{
|
|
_Self_destruct_ptr __left(_S_substring(this->_M_tree_ptr, 0, __p));
|
|
_Self_destruct_ptr __right(_S_substring(this->_M_tree_ptr,
|
|
__p, size()));
|
|
_Self_destruct_ptr __left_result(_S_concat_char_iter(__left, __i, __n));
|
|
// _S_ destr_concat_char_iter should be safe here.
|
|
// But as it stands it's probably not a win, since __left
|
|
// is likely to have additional references.
|
|
_RopeRep* __result = _S_concat(__left_result, __right);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
}
|
|
|
|
void
|
|
insert(size_t __p, const _CharT* __c_string)
|
|
{ insert(__p, __c_string, _S_char_ptr_len(__c_string)); }
|
|
|
|
void
|
|
insert(size_t __p, _CharT __c)
|
|
{ insert(__p, &__c, 1); }
|
|
|
|
void
|
|
insert(size_t __p)
|
|
{
|
|
_CharT __c = _CharT();
|
|
insert(__p, &__c, 1);
|
|
}
|
|
|
|
void
|
|
insert(size_t __p, const _CharT* __i, const _CharT* __j)
|
|
{
|
|
rope __r(__i, __j);
|
|
insert(__p, __r);
|
|
}
|
|
|
|
void
|
|
insert(size_t __p, const const_iterator& __i,
|
|
const const_iterator& __j)
|
|
{
|
|
rope __r(__i, __j);
|
|
insert(__p, __r);
|
|
}
|
|
|
|
void
|
|
insert(size_t __p, const iterator& __i,
|
|
const iterator& __j)
|
|
{
|
|
rope __r(__i, __j);
|
|
insert(__p, __r);
|
|
}
|
|
|
|
// (position, length) versions of replace operations:
|
|
|
|
void
|
|
replace(size_t __p, size_t __n, const rope& __r)
|
|
{
|
|
_RopeRep* __result =
|
|
replace(this->_M_tree_ptr, __p, __p + __n, __r._M_tree_ptr);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
}
|
|
|
|
void
|
|
replace(size_t __p, size_t __n,
|
|
const _CharT* __i, size_t __i_len)
|
|
{
|
|
rope __r(__i, __i_len);
|
|
replace(__p, __n, __r);
|
|
}
|
|
|
|
void
|
|
replace(size_t __p, size_t __n, _CharT __c)
|
|
{
|
|
rope __r(__c);
|
|
replace(__p, __n, __r);
|
|
}
|
|
|
|
void
|
|
replace(size_t __p, size_t __n, const _CharT* __c_string)
|
|
{
|
|
rope __r(__c_string);
|
|
replace(__p, __n, __r);
|
|
}
|
|
|
|
void
|
|
replace(size_t __p, size_t __n,
|
|
const _CharT* __i, const _CharT* __j)
|
|
{
|
|
rope __r(__i, __j);
|
|
replace(__p, __n, __r);
|
|
}
|
|
|
|
void
|
|
replace(size_t __p, size_t __n,
|
|
const const_iterator& __i, const const_iterator& __j)
|
|
{
|
|
rope __r(__i, __j);
|
|
replace(__p, __n, __r);
|
|
}
|
|
|
|
void
|
|
replace(size_t __p, size_t __n,
|
|
const iterator& __i, const iterator& __j)
|
|
{
|
|
rope __r(__i, __j);
|
|
replace(__p, __n, __r);
|
|
}
|
|
|
|
// Single character variants:
|
|
void
|
|
replace(size_t __p, _CharT __c)
|
|
{
|
|
iterator __i(this, __p);
|
|
*__i = __c;
|
|
}
|
|
|
|
void
|
|
replace(size_t __p, const rope& __r)
|
|
{ replace(__p, 1, __r); }
|
|
|
|
void
|
|
replace(size_t __p, const _CharT* __i, size_t __i_len)
|
|
{ replace(__p, 1, __i, __i_len); }
|
|
|
|
void
|
|
replace(size_t __p, const _CharT* __c_string)
|
|
{ replace(__p, 1, __c_string); }
|
|
|
|
void
|
|
replace(size_t __p, const _CharT* __i, const _CharT* __j)
|
|
{ replace(__p, 1, __i, __j); }
|
|
|
|
void
|
|
replace(size_t __p, const const_iterator& __i,
|
|
const const_iterator& __j)
|
|
{ replace(__p, 1, __i, __j); }
|
|
|
|
void
|
|
replace(size_t __p, const iterator& __i,
|
|
const iterator& __j)
|
|
{ replace(__p, 1, __i, __j); }
|
|
|
|
// Erase, (position, size) variant.
|
|
void
|
|
erase(size_t __p, size_t __n)
|
|
{
|
|
_RopeRep* __result = replace(this->_M_tree_ptr, __p,
|
|
__p + __n, 0);
|
|
_S_unref(this->_M_tree_ptr);
|
|
this->_M_tree_ptr = __result;
|
|
}
|
|
|
|
// Erase, single character
|
|
void
|
|
erase(size_t __p)
|
|
{ erase(__p, __p + 1); }
|
|
|
|
// Insert, iterator variants.
|
|
iterator
|
|
insert(const iterator& __p, const rope& __r)
|
|
{
|
|
insert(__p.index(), __r);
|
|
return __p;
|
|
}
|
|
|
|
iterator
|
|
insert(const iterator& __p, size_t __n, _CharT __c)
|
|
{
|
|
insert(__p.index(), __n, __c);
|
|
return __p;
|
|
}
|
|
|
|
iterator insert(const iterator& __p, _CharT __c)
|
|
{
|
|
insert(__p.index(), __c);
|
|
return __p;
|
|
}
|
|
|
|
iterator
|
|
insert(const iterator& __p )
|
|
{
|
|
insert(__p.index());
|
|
return __p;
|
|
}
|
|
|
|
iterator
|
|
insert(const iterator& __p, const _CharT* c_string)
|
|
{
|
|
insert(__p.index(), c_string);
|
|
return __p;
|
|
}
|
|
|
|
iterator
|
|
insert(const iterator& __p, const _CharT* __i, size_t __n)
|
|
{
|
|
insert(__p.index(), __i, __n);
|
|
return __p;
|
|
}
|
|
|
|
iterator
|
|
insert(const iterator& __p, const _CharT* __i,
|
|
const _CharT* __j)
|
|
{
|
|
insert(__p.index(), __i, __j);
|
|
return __p;
|
|
}
|
|
|
|
iterator
|
|
insert(const iterator& __p,
|
|
const const_iterator& __i, const const_iterator& __j)
|
|
{
|
|
insert(__p.index(), __i, __j);
|
|
return __p;
|
|
}
|
|
|
|
iterator
|
|
insert(const iterator& __p,
|
|
const iterator& __i, const iterator& __j)
|
|
{
|
|
insert(__p.index(), __i, __j);
|
|
return __p;
|
|
}
|
|
|
|
// Replace, range variants.
|
|
void
|
|
replace(const iterator& __p, const iterator& __q, const rope& __r)
|
|
{ replace(__p.index(), __q.index() - __p.index(), __r); }
|
|
|
|
void
|
|
replace(const iterator& __p, const iterator& __q, _CharT __c)
|
|
{ replace(__p.index(), __q.index() - __p.index(), __c); }
|
|
|
|
void
|
|
replace(const iterator& __p, const iterator& __q,
|
|
const _CharT* __c_string)
|
|
{ replace(__p.index(), __q.index() - __p.index(), __c_string); }
|
|
|
|
void
|
|
replace(const iterator& __p, const iterator& __q,
|
|
const _CharT* __i, size_t __n)
|
|
{ replace(__p.index(), __q.index() - __p.index(), __i, __n); }
|
|
|
|
void
|
|
replace(const iterator& __p, const iterator& __q,
|
|
const _CharT* __i, const _CharT* __j)
|
|
{ replace(__p.index(), __q.index() - __p.index(), __i, __j); }
|
|
|
|
void
|
|
replace(const iterator& __p, const iterator& __q,
|
|
const const_iterator& __i, const const_iterator& __j)
|
|
{ replace(__p.index(), __q.index() - __p.index(), __i, __j); }
|
|
|
|
void
|
|
replace(const iterator& __p, const iterator& __q,
|
|
const iterator& __i, const iterator& __j)
|
|
{ replace(__p.index(), __q.index() - __p.index(), __i, __j); }
|
|
|
|
// Replace, iterator variants.
|
|
void
|
|
replace(const iterator& __p, const rope& __r)
|
|
{ replace(__p.index(), __r); }
|
|
|
|
void
|
|
replace(const iterator& __p, _CharT __c)
|
|
{ replace(__p.index(), __c); }
|
|
|
|
void
|
|
replace(const iterator& __p, const _CharT* __c_string)
|
|
{ replace(__p.index(), __c_string); }
|
|
|
|
void
|
|
replace(const iterator& __p, const _CharT* __i, size_t __n)
|
|
{ replace(__p.index(), __i, __n); }
|
|
|
|
void
|
|
replace(const iterator& __p, const _CharT* __i, const _CharT* __j)
|
|
{ replace(__p.index(), __i, __j); }
|
|
|
|
void
|
|
replace(const iterator& __p, const_iterator __i, const_iterator __j)
|
|
{ replace(__p.index(), __i, __j); }
|
|
|
|
void
|
|
replace(const iterator& __p, iterator __i, iterator __j)
|
|
{ replace(__p.index(), __i, __j); }
|
|
|
|
// Iterator and range variants of erase
|
|
iterator
|
|
erase(const iterator& __p, const iterator& __q)
|
|
{
|
|
size_t __p_index = __p.index();
|
|
erase(__p_index, __q.index() - __p_index);
|
|
return iterator(this, __p_index);
|
|
}
|
|
|
|
iterator
|
|
erase(const iterator& __p)
|
|
{
|
|
size_t __p_index = __p.index();
|
|
erase(__p_index, 1);
|
|
return iterator(this, __p_index);
|
|
}
|
|
|
|
rope
|
|
substr(size_t __start, size_t __len = 1) const
|
|
{
|
|
return rope<_CharT, _Alloc>(_S_substring(this->_M_tree_ptr,
|
|
__start,
|
|
__start + __len));
|
|
}
|
|
|
|
rope
|
|
substr(iterator __start, iterator __end) const
|
|
{
|
|
return rope<_CharT, _Alloc>(_S_substring(this->_M_tree_ptr,
|
|
__start.index(),
|
|
__end.index()));
|
|
}
|
|
|
|
rope
|
|
substr(iterator __start) const
|
|
{
|
|
size_t __pos = __start.index();
|
|
return rope<_CharT, _Alloc>(_S_substring(this->_M_tree_ptr,
|
|
__pos, __pos + 1));
|
|
}
|
|
|
|
rope
|
|
substr(const_iterator __start, const_iterator __end) const
|
|
{
|
|
// This might eventually take advantage of the cache in the
|
|
// iterator.
|
|
return rope<_CharT, _Alloc>(_S_substring(this->_M_tree_ptr,
|
|
__start.index(),
|
|
__end.index()));
|
|
}
|
|
|
|
rope<_CharT, _Alloc>
|
|
substr(const_iterator __start)
|
|
{
|
|
size_t __pos = __start.index();
|
|
return rope<_CharT, _Alloc>(_S_substring(this->_M_tree_ptr,
|
|
__pos, __pos + 1));
|
|
}
|
|
|
|
static const size_type npos;
|
|
|
|
size_type find(_CharT __c, size_type __pos = 0) const;
|
|
|
|
size_type
|
|
find(const _CharT* __s, size_type __pos = 0) const
|
|
{
|
|
size_type __result_pos;
|
|
const_iterator __result =
|
|
std::search(const_begin() + __pos, const_end(),
|
|
__s, __s + _S_char_ptr_len(__s));
|
|
__result_pos = __result.index();
|
|
#ifndef __STL_OLD_ROPE_SEMANTICS
|
|
if (__result_pos == size())
|
|
__result_pos = npos;
|
|
#endif
|
|
return __result_pos;
|
|
}
|
|
|
|
iterator
|
|
mutable_begin()
|
|
{ return(iterator(this, 0)); }
|
|
|
|
iterator
|
|
mutable_end()
|
|
{ return(iterator(this, size())); }
|
|
|
|
typedef std::reverse_iterator<iterator> reverse_iterator;
|
|
|
|
reverse_iterator
|
|
mutable_rbegin()
|
|
{ return reverse_iterator(mutable_end()); }
|
|
|
|
reverse_iterator
|
|
mutable_rend()
|
|
{ return reverse_iterator(mutable_begin()); }
|
|
|
|
reference
|
|
mutable_reference_at(size_type __pos)
|
|
{ return reference(this, __pos); }
|
|
|
|
#ifdef __STD_STUFF
|
|
reference
|
|
operator[] (size_type __pos)
|
|
{ return _char_ref_proxy(this, __pos); }
|
|
|
|
reference
|
|
at(size_type __pos)
|
|
{
|
|
// if (__pos >= size()) throw out_of_range; // XXX
|
|
return (*this)[__pos];
|
|
}
|
|
|
|
void resize(size_type __n, _CharT __c) { }
|
|
void resize(size_type __n) { }
|
|
void reserve(size_type __res_arg = 0) { }
|
|
|
|
size_type
|
|
capacity() const
|
|
{ return max_size(); }
|
|
|
|
// Stuff below this line is dangerous because it's error prone.
|
|
// I would really like to get rid of it.
|
|
// copy function with funny arg ordering.
|
|
size_type
|
|
copy(_CharT* __buffer, size_type __n,
|
|
size_type __pos = 0) const
|
|
{ return copy(__pos, __n, __buffer); }
|
|
|
|
iterator
|
|
end()
|
|
{ return mutable_end(); }
|
|
|
|
iterator
|
|
begin()
|
|
{ return mutable_begin(); }
|
|
|
|
reverse_iterator
|
|
rend()
|
|
{ return mutable_rend(); }
|
|
|
|
reverse_iterator
|
|
rbegin()
|
|
{ return mutable_rbegin(); }
|
|
|
|
#else
|
|
const_iterator
|
|
end()
|
|
{ return const_end(); }
|
|
|
|
const_iterator
|
|
begin()
|
|
{ return const_begin(); }
|
|
|
|
const_reverse_iterator
|
|
rend()
|
|
{ return const_rend(); }
|
|
|
|
const_reverse_iterator
|
|
rbegin()
|
|
{ return const_rbegin(); }
|
|
|
|
#endif
|
|
};
|
|
|
|
template <class _CharT, class _Alloc>
|
|
const typename rope<_CharT, _Alloc>::size_type
|
|
rope<_CharT, _Alloc>::npos = (size_type)(-1);
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool operator==(const _Rope_const_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_const_iterator<_CharT, _Alloc>& __y)
|
|
{ return (__x._M_current_pos == __y._M_current_pos
|
|
&& __x._M_root == __y._M_root); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool operator<(const _Rope_const_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_const_iterator<_CharT, _Alloc>& __y)
|
|
{ return (__x._M_current_pos < __y._M_current_pos); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool operator!=(const _Rope_const_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_const_iterator<_CharT, _Alloc>& __y)
|
|
{ return !(__x == __y); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool operator>(const _Rope_const_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_const_iterator<_CharT, _Alloc>& __y)
|
|
{ return __y < __x; }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator<=(const _Rope_const_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_const_iterator<_CharT, _Alloc>& __y)
|
|
{ return !(__y < __x); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator>=(const _Rope_const_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_const_iterator<_CharT, _Alloc>& __y)
|
|
{ return !(__x < __y); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline ptrdiff_t
|
|
operator-(const _Rope_const_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_const_iterator<_CharT, _Alloc>& __y)
|
|
{ return (ptrdiff_t)__x._M_current_pos - (ptrdiff_t)__y._M_current_pos; }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline _Rope_const_iterator<_CharT, _Alloc>
|
|
operator-(const _Rope_const_iterator<_CharT, _Alloc>& __x, ptrdiff_t __n)
|
|
{ return _Rope_const_iterator<_CharT, _Alloc>(__x._M_root,
|
|
__x._M_current_pos - __n); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline _Rope_const_iterator<_CharT, _Alloc>
|
|
operator+(const _Rope_const_iterator<_CharT, _Alloc>& __x, ptrdiff_t __n)
|
|
{ return _Rope_const_iterator<_CharT, _Alloc>(__x._M_root,
|
|
__x._M_current_pos + __n); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline _Rope_const_iterator<_CharT, _Alloc>
|
|
operator+(ptrdiff_t __n, const _Rope_const_iterator<_CharT, _Alloc>& __x)
|
|
{ return _Rope_const_iterator<_CharT, _Alloc>(__x._M_root,
|
|
__x._M_current_pos + __n); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator==(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_iterator<_CharT, _Alloc>& __y)
|
|
{return (__x._M_current_pos == __y._M_current_pos
|
|
&& __x._M_root_rope == __y._M_root_rope); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator<(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_iterator<_CharT, _Alloc>& __y)
|
|
{ return (__x._M_current_pos < __y._M_current_pos); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator!=(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_iterator<_CharT, _Alloc>& __y)
|
|
{ return !(__x == __y); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator>(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_iterator<_CharT, _Alloc>& __y)
|
|
{ return __y < __x; }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator<=(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_iterator<_CharT, _Alloc>& __y)
|
|
{ return !(__y < __x); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator>=(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_iterator<_CharT, _Alloc>& __y)
|
|
{ return !(__x < __y); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline ptrdiff_t
|
|
operator-(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
const _Rope_iterator<_CharT, _Alloc>& __y)
|
|
{ return ((ptrdiff_t)__x._M_current_pos
|
|
- (ptrdiff_t)__y._M_current_pos); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline _Rope_iterator<_CharT, _Alloc>
|
|
operator-(const _Rope_iterator<_CharT, _Alloc>& __x,
|
|
ptrdiff_t __n)
|
|
{ return _Rope_iterator<_CharT, _Alloc>(__x._M_root_rope,
|
|
__x._M_current_pos - __n); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline _Rope_iterator<_CharT, _Alloc>
|
|
operator+(const _Rope_iterator<_CharT, _Alloc>& __x, ptrdiff_t __n)
|
|
{ return _Rope_iterator<_CharT, _Alloc>(__x._M_root_rope,
|
|
__x._M_current_pos + __n); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline _Rope_iterator<_CharT, _Alloc>
|
|
operator+(ptrdiff_t __n, const _Rope_iterator<_CharT, _Alloc>& __x)
|
|
{ return _Rope_iterator<_CharT, _Alloc>(__x._M_root_rope,
|
|
__x._M_current_pos + __n); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline rope<_CharT, _Alloc>
|
|
operator+(const rope<_CharT, _Alloc>& __left,
|
|
const rope<_CharT, _Alloc>& __right)
|
|
{
|
|
// Inlining this should make it possible to keep __left and
|
|
// __right in registers.
|
|
typedef rope<_CharT, _Alloc> rope_type;
|
|
return rope_type(rope_type::_S_concat(__left._M_tree_ptr,
|
|
__right._M_tree_ptr));
|
|
}
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline rope<_CharT, _Alloc>&
|
|
operator+=(rope<_CharT, _Alloc>& __left,
|
|
const rope<_CharT, _Alloc>& __right)
|
|
{
|
|
__left.append(__right);
|
|
return __left;
|
|
}
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline rope<_CharT, _Alloc>
|
|
operator+(const rope<_CharT, _Alloc>& __left,
|
|
const _CharT* __right)
|
|
{
|
|
typedef rope<_CharT, _Alloc> rope_type;
|
|
size_t __rlen = rope_type::_S_char_ptr_len(__right);
|
|
return rope_type(rope_type::_S_concat_char_iter(__left._M_tree_ptr,
|
|
__right, __rlen));
|
|
}
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline rope<_CharT, _Alloc>&
|
|
operator+=(rope<_CharT, _Alloc>& __left,
|
|
const _CharT* __right)
|
|
{
|
|
__left.append(__right);
|
|
return __left;
|
|
}
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline rope<_CharT, _Alloc>
|
|
operator+(const rope<_CharT, _Alloc>& __left, _CharT __right)
|
|
{
|
|
typedef rope<_CharT, _Alloc> rope_type;
|
|
return rope_type(rope_type::_S_concat_char_iter(__left._M_tree_ptr,
|
|
&__right, 1));
|
|
}
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline rope<_CharT, _Alloc>&
|
|
operator+=(rope<_CharT, _Alloc>& __left, _CharT __right)
|
|
{
|
|
__left.append(__right);
|
|
return __left;
|
|
}
|
|
|
|
template <class _CharT, class _Alloc>
|
|
bool
|
|
operator<(const rope<_CharT, _Alloc>& __left,
|
|
const rope<_CharT, _Alloc>& __right)
|
|
{ return __left.compare(__right) < 0; }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
bool
|
|
operator==(const rope<_CharT, _Alloc>& __left,
|
|
const rope<_CharT, _Alloc>& __right)
|
|
{ return __left.compare(__right) == 0; }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator==(const _Rope_char_ptr_proxy<_CharT, _Alloc>& __x,
|
|
const _Rope_char_ptr_proxy<_CharT, _Alloc>& __y)
|
|
{ return (__x._M_pos == __y._M_pos && __x._M_root == __y._M_root); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator!=(const rope<_CharT, _Alloc>& __x,
|
|
const rope<_CharT, _Alloc>& __y)
|
|
{ return !(__x == __y); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator>(const rope<_CharT, _Alloc>& __x,
|
|
const rope<_CharT, _Alloc>& __y)
|
|
{ return __y < __x; }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator<=(const rope<_CharT, _Alloc>& __x,
|
|
const rope<_CharT, _Alloc>& __y)
|
|
{ return !(__y < __x); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator>=(const rope<_CharT, _Alloc>& __x,
|
|
const rope<_CharT, _Alloc>& __y)
|
|
{ return !(__x < __y); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline bool
|
|
operator!=(const _Rope_char_ptr_proxy<_CharT, _Alloc>& __x,
|
|
const _Rope_char_ptr_proxy<_CharT, _Alloc>& __y)
|
|
{ return !(__x == __y); }
|
|
|
|
template<class _CharT, class _Traits, class _Alloc>
|
|
std::basic_ostream<_CharT, _Traits>&
|
|
operator<<(std::basic_ostream<_CharT, _Traits>& __o,
|
|
const rope<_CharT, _Alloc>& __r);
|
|
|
|
typedef rope<char> crope;
|
|
typedef rope<wchar_t> wrope;
|
|
|
|
inline crope::reference
|
|
__mutable_reference_at(crope& __c, size_t __i)
|
|
{ return __c.mutable_reference_at(__i); }
|
|
|
|
inline wrope::reference
|
|
__mutable_reference_at(wrope& __c, size_t __i)
|
|
{ return __c.mutable_reference_at(__i); }
|
|
|
|
template <class _CharT, class _Alloc>
|
|
inline void
|
|
swap(rope<_CharT, _Alloc>& __x, rope<_CharT, _Alloc>& __y)
|
|
{ __x.swap(__y); }
|
|
|
|
_GLIBCXX_END_NAMESPACE
|
|
|
|
|
|
namespace std
|
|
{
|
|
namespace tr1
|
|
{
|
|
template<>
|
|
struct hash<__gnu_cxx::crope>
|
|
{
|
|
size_t
|
|
operator()(const __gnu_cxx::crope& __str) const
|
|
{
|
|
size_t __size = __str.size();
|
|
if (0 == __size)
|
|
return 0;
|
|
return 13 * __str[0] + 5 * __str[__size - 1] + __size;
|
|
}
|
|
};
|
|
|
|
|
|
template<>
|
|
struct hash<__gnu_cxx::wrope>
|
|
{
|
|
size_t
|
|
operator()(const __gnu_cxx::wrope& __str) const
|
|
{
|
|
size_t __size = __str.size();
|
|
if (0 == __size)
|
|
return 0;
|
|
return 13 * __str[0] + 5 * __str[__size - 1] + __size;
|
|
}
|
|
};
|
|
} // namespace tr1
|
|
} // namespace std
|
|
|
|
# include <ext/ropeimpl.h>
|
|
|
|
#endif
|