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976448273e
2001-01-12 Benjamin Kosnik <bkoz@redhat.com> * include/bits/basic_string.h (_S_find(const _CharT* __beg, const _CharT* __end, _CharT __c): Remove. * include/bits/basic_string.tcc: Substitute traits::find for _S_find. * include/bits/char_traits.h: Tweak. From-SVN: r38961
832 lines
27 KiB
C++
832 lines
27 KiB
C++
// Components for manipulating sequences of characters -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2000, 2001 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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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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// ISO C++ 14882: 21 Strings library
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//
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// This file is included by <string>. It is not meant to be included
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// separately.
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// Written by Jason Merrill based upon the specification by Takanori Adachi
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// in ANSI X3J16/94-0013R2. Rewritten by Nathan Myers to ISO-14882.
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#ifndef _CPP_BITS_STRING_TCC
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#define _CPP_BITS_STRING_TCC 1
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namespace std
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{
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template<typename _CharT, typename _Traits, typename _Alloc>
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const _CharT
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basic_string<_CharT, _Traits, _Alloc>::
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_Rep::_S_terminal = _CharT();
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template<typename _CharT, typename _Traits, typename _Alloc>
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const typename basic_string<_CharT, _Traits, _Alloc>::size_type
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basic_string<_CharT, _Traits, _Alloc>::
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_Rep::_S_max_size = (((npos - sizeof(_Rep))/sizeof(_CharT)) - 1) / 4;
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template<typename _CharT, typename _Traits, typename _Alloc>
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const typename basic_string<_CharT, _Traits, _Alloc>::size_type
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basic_string<_CharT, _Traits, _Alloc>::npos;
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// Linker sets _S_empty_rep_storage to all 0s (one reference, empty string)
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// at static init time (before static ctors are run).
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template<typename _CharT, typename _Traits, typename _Alloc>
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typename basic_string<_CharT, _Traits, _Alloc>::size_type
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basic_string<_CharT, _Traits, _Alloc>::_S_empty_rep_storage[
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(sizeof(_Rep) + sizeof(_CharT) + sizeof(size_type) - 1)/sizeof(size_type)];
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// NB: This is the special case for Input Iterators, used in
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// istreambuf_iterators, etc.
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// Input Iterators have a cost structure very different from
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// pointers, calling for a different coding style.
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template<typename _CharT, typename _Traits, typename _Alloc>
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template<typename _InIter>
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_CharT*
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basic_string<_CharT, _Traits, _Alloc>::
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_S_construct(_InIter __beg, _InIter __end, const _Alloc& __a,
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input_iterator_tag)
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{
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if (__beg == __end && __a == _Alloc())
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return _S_empty_rep()._M_refcopy();
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// Avoid reallocation for common case.
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_CharT __buf[100];
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size_type __i = 0;
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while (__beg != __end && __i < sizeof(__buf) / sizeof(_CharT))
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{
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__buf[__i++] = *__beg;
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++__beg;
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}
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_Rep* __r = _Rep::_S_create(__i, __a);
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traits_type::copy(__r->_M_refdata(), __buf, __i);
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__r->_M_length = __i;
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try {
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// NB: this loop looks precisely this way because
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// it avoids comparing __beg != __end any more
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// than strictly necessary; != might be expensive!
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for (;;)
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{
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_CharT* __p = __r->_M_refdata() + __r->_M_length;
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_CharT* __last = __r->_M_refdata() + __r->_M_capacity;
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for (;;)
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{
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if (__beg == __end)
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{
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__r->_M_length = __p - __r->_M_refdata();
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*__p = _Rep::_S_terminal; // grrr.
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return __r->_M_refdata();
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}
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if (__p == __last)
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break;
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*__p++ = *__beg;
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++__beg;
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}
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// Allocate more space.
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size_type __len = __p - __r->_M_refdata();
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_Rep* __another = _Rep::_S_create(__len + 1, __a);
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traits_type::copy(__another->_M_refdata(),
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__r->_M_refdata(), __len);
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__r->_M_destroy(__a);
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__r = __another;
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__r->_M_length = __len;
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}
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}
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catch (...) {
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__r->_M_destroy(__a);
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throw;
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}
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return 0;
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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template <class _InIter>
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_CharT*
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basic_string<_CharT,_Traits,_Alloc>::
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_S_construct(_InIter __beg, _InIter __end, const _Alloc& __a,
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forward_iterator_tag)
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{
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size_type __dnew = static_cast<size_type>(distance(__beg, __end));
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if (__beg == __end && __a == _Alloc())
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return _S_empty_rep()._M_refcopy();
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// Check for out_of_range and length_error exceptions.
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_Rep* __r = _Rep::_S_create(__dnew, __a);
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try {
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_S_copy_chars(__r->_M_refdata(), __beg, __end);
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}
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catch (...) {
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__r->_M_destroy(__a);
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throw;
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}
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__r->_M_length = __dnew;
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__r->_M_refdata()[__dnew] = _Rep::_S_terminal; // grrr.
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return __r->_M_refdata();
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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_CharT*
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basic_string<_CharT,_Traits, _Alloc>::
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_S_construct(size_type __n, _CharT __c, const _Alloc& __a)
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{
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if (__n == 0 && __a == _Alloc())
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return _S_empty_rep()._M_refcopy();
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// Check for out_of_range and length_error exceptions.
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_Rep* __r = _Rep::_S_create(__n, __a);
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try {
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if (__n)
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traits_type::assign(__r->_M_refdata(), __n, __c);
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}
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catch (...) {
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__r->_M_destroy(__a);
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throw;
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}
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__r->_M_length = __n;
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__r->_M_refdata()[__n] = _Rep::_S_terminal; // grrr
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return __r->_M_refdata();
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(const basic_string& __str)
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: _M_dataplus(__str._M_rep()->_M_grab(_Alloc(), __str.get_allocator()),
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__str.get_allocator())
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(const _Alloc& __a)
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: _M_dataplus(_S_construct(size_type(), _CharT(), __a), __a)
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(const basic_string& __str, size_type __pos, size_type __n)
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: _M_dataplus(_S_construct(__str._M_check(__pos),
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__str._M_fold(__pos, __n), _Alloc()), _Alloc())
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(const basic_string& __str, size_type __pos,
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size_type __n, const _Alloc& __a)
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: _M_dataplus(_S_construct(__str._M_check(__pos),
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__str._M_fold(__pos, __n), __a), __a)
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(const _CharT* __s, size_type __n, const _Alloc& __a)
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: _M_dataplus(_S_construct(__s, __s + __n, __a), __a)
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(const _CharT* __s, const _Alloc& __a)
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: _M_dataplus(_S_construct(__s, __s + traits_type::length(__s), __a), __a)
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(size_type __n, _CharT __c, const _Alloc& __a)
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: _M_dataplus(_S_construct(__n, __c, __a), __a)
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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template<typename _InputIter>
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basic_string<_CharT, _Traits, _Alloc>::
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basic_string(_InputIter __beg, _InputIter __end, const _Alloc& __a)
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: _M_dataplus(_S_construct(__beg, __end, __a), __a)
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{ }
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>&
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basic_string<_CharT, _Traits, _Alloc>::assign(const basic_string& __str)
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{
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if (_M_rep() != __str._M_rep())
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{
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// XXX MT
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allocator_type __a = this->get_allocator();
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_CharT* __tmp = __str._M_rep()->_M_grab(__a, __str.get_allocator());
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_M_rep()->_M_dispose(__a);
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_M_data(__tmp);
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}
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return *this;
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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void
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basic_string<_CharT, _Traits, _Alloc>::_Rep::
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_M_destroy(const _Alloc& __a) throw ()
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{
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size_type __size = sizeof(_Rep) + (_M_capacity + 1) * sizeof(_CharT);
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_Raw_bytes_alloc(__a).deallocate(reinterpret_cast<char*>(this), __size);
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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void
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basic_string<_CharT, _Traits, _Alloc>::_M_leak_hard()
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{
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if (_M_rep()->_M_is_shared())
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_M_mutate(0, 0, 0);
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_M_rep()->_M_set_leaked();
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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void
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basic_string<_CharT, _Traits, _Alloc>::
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_M_mutate(size_type __pos, size_type __len1, size_type __len2)
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{
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size_type __old_size = this->size();
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const size_type __new_size = __old_size + __len2 - __len1;
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const _CharT* __src = _M_data() + __pos + __len1;
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const size_type __how_much = __old_size - __pos - __len1;
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if (_M_rep()->_M_is_shared() || __new_size > capacity())
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{
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// Must reallocate.
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allocator_type __a = get_allocator();
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_Rep* __r = _Rep::_S_create(__new_size, __a);
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try {
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if (__pos)
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traits_type::copy(__r->_M_refdata(), _M_data(), __pos);
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if (__how_much)
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traits_type::copy(__r->_M_refdata() + __pos + __len2,
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__src, __how_much);
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}
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catch (...) {
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__r->_M_dispose(get_allocator());
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throw;
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}
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_M_rep()->_M_dispose(__a);
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_M_data(__r->_M_refdata());
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}
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else if (__how_much && __len1 != __len2)
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{
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// Work in-place
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traits_type::move(_M_data() + __pos + __len2, __src, __how_much);
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}
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_M_rep()->_M_set_sharable();
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_M_rep()->_M_length = __new_size;
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_M_data()[__new_size] = _Rep::_S_terminal; // grrr. (per 21.3.4)
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// You cannot leave those LWG people alone for a second.
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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void
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basic_string<_CharT, _Traits, _Alloc>::reserve(size_type __res)
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{
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if (__res > this->capacity() || _M_rep()->_M_is_shared())
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{
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__LENGTHERROR(__res > this->max_size());
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allocator_type __a = get_allocator();
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_CharT* __tmp = _M_rep()->_M_clone(__a, __res - this->size());
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_M_rep()->_M_dispose(__a);
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_M_data(__tmp);
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}
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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void basic_string<_CharT, _Traits, _Alloc>::swap(basic_string& __s)
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{
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if (_M_rep()->_M_is_leaked())
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_M_rep()->_M_set_sharable();
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if (__s._M_rep()->_M_is_leaked())
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__s._M_rep()->_M_set_sharable();
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if (this->get_allocator() == __s.get_allocator())
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{
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_CharT* __tmp = _M_data();
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_M_data(__s._M_data());
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__s._M_data(__tmp);
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}
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// The code below can usually be optimized away.
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else
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{
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basic_string __tmp1(_M_ibegin(), _M_iend(), __s.get_allocator());
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basic_string __tmp2(__s._M_ibegin(), __s._M_iend(),
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this->get_allocator());
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*this = __tmp2;
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__s = __tmp1;
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}
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}
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#ifdef _GLIBCPP_ALLOC_CONTROL
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template<typename _CharT, typename _Traits, typename _Alloc>
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bool (*basic_string<_CharT, _Traits, _Alloc>::_Rep::_S_excess_slop)
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(size_t, size_t) =
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basic_string<_CharT, _Traits, _Alloc>::_Rep::_S_default_excess;
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#endif
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template<typename _CharT, typename _Traits, typename _Alloc>
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basic_string<_CharT, _Traits, _Alloc>::_Rep*
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basic_string<_CharT, _Traits, _Alloc>::_Rep::
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_S_create(size_t __capacity, const _Alloc& __alloc)
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{
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#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
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// 83. String::npos vs. string::max_size()
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typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
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__LENGTHERROR(__capacity > _S_max_size);
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#else
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__LENGTHERROR(__capacity == npos);
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#endif
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// NB: Need an array of char_type[__capacity], plus a
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// terminating null char_type() element, plus enough for the
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// _Rep data structure. Whew. Seemingly so needy, yet so elemental.
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size_t __size = (__capacity + 1) * sizeof(_CharT) + sizeof(_Rep);
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// NB: Might throw, but no worries about a leak, mate: _Rep()
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// does not throw.
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void* __place = _Raw_bytes_alloc(__alloc).allocate(__size);
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_Rep *__p = new (__place) _Rep;
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__p->_M_capacity = __capacity;
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__p->_M_set_sharable(); // one reference
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__p->_M_length = 0;
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return __p;
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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_CharT*
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basic_string<_CharT, _Traits, _Alloc>::_Rep::
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_M_clone(const _Alloc& __alloc, size_type __res)
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{
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_Rep* __r = _Rep::_S_create(_M_length + __res, __alloc);
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if (_M_length)
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{
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try {
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traits_type::copy(__r->_M_refdata(), _M_refdata(), _M_length);
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}
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catch (...) {
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__r->_M_destroy(__alloc);
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throw;
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}
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}
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__r->_M_length = _M_length;
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return __r->_M_refdata();
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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inline bool
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#ifdef _GLIBCPP_ALLOC_CONTROL
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basic_string<_CharT, _Traits, _Alloc>::_Rep::
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_S_default_excess(size_t __s, size_t __r)
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#else
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basic_string<_CharT, _Traits, _Alloc>::_Rep::
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_S_excess_slop(size_t __s, size_t __r)
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#endif
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{
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return 2 * (__s <= 16 ? 16 : __s) < __r;
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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void
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basic_string<_CharT, _Traits, _Alloc>::resize(size_type __n, _CharT __c)
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{
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__LENGTHERROR(__n > max_size());
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size_type __size = this->size();
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if (__size < __n)
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this->append(__n - __size, __c);
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else if (__n < __size)
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this->erase(__n);
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// else nothing (in particular, avoid calling _M_mutate() unnecessarily.)
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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template<typename _InputIter>
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basic_string<_CharT, _Traits, _Alloc>&
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basic_string<_CharT, _Traits, _Alloc>::
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_M_replace(iterator __i1, iterator __i2, _InputIter __k1,
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_InputIter __k2, input_iterator_tag)
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{
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basic_string __s(__k1, __k2);
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return this->replace(__i1, __i2, __s._M_ibegin(), __s._M_iend());
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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template<typename _ForwardIter>
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basic_string<_CharT, _Traits, _Alloc>&
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basic_string<_CharT, _Traits, _Alloc>::
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_M_replace(iterator __i1, iterator __i2, _ForwardIter __k1,
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_ForwardIter __k2, forward_iterator_tag)
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{
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size_type __dold = __i2 - __i1;
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size_type __dmax = this->max_size();
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size_type __dnew = static_cast<size_type>(distance(__k1, __k2));
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__LENGTHERROR(__dmax <= __dnew);
|
|
size_type __off = __i1 - _M_ibegin();
|
|
_M_mutate(__off, __dold, __dnew);
|
|
// Invalidated __i1, __i2
|
|
if (__dnew)
|
|
_S_copy_chars(_M_data() + __off, __k1, __k2);
|
|
|
|
return *this;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>&
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
replace(size_type __pos1, size_type __n1, const basic_string& __str,
|
|
size_type __pos2, size_type __n2)
|
|
{
|
|
return this->replace(_M_check(__pos1), _M_fold(__pos1, __n1),
|
|
__str._M_check(__pos2),
|
|
__str._M_fold(__pos2, __n2));
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(const basic_string& __str)
|
|
{
|
|
// Iff appending itself, string needs to pre-reserve the
|
|
// correct size so that _M_mutate does not clobber the
|
|
// iterators formed here.
|
|
size_type __size = __str.size();
|
|
size_type __len = __size + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __str._M_ibegin(),
|
|
__str._M_iend());
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(const basic_string& __str, size_type __pos, size_type __n)
|
|
{
|
|
// Iff appending itself, string needs to pre-reserve the
|
|
// correct size so that _M_mutate does not clobber the
|
|
// iterators formed here.
|
|
size_type __len = min(__str.size() - __pos, __n) + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __str._M_check(__pos),
|
|
__str._M_fold(__pos, __n));
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(const _CharT* __s, size_type __n)
|
|
{
|
|
size_type __len = __n + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __s, __s + __n);
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(size_type __n, _CharT __c)
|
|
{
|
|
size_type __len = __n + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __n, __c);
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>
|
|
operator+(const _CharT* __lhs,
|
|
const basic_string<_CharT,_Traits,_Alloc>& __rhs)
|
|
{
|
|
typedef basic_string<_CharT,_Traits,_Alloc> __string_type;
|
|
typedef typename __string_type::size_type __size_type;
|
|
__size_type __len = _Traits::length(__lhs);
|
|
__string_type __str;
|
|
__str.reserve(__len + __rhs.size());
|
|
__str.append(__lhs, __lhs + __len);
|
|
__str.append(__rhs);
|
|
return __str;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>
|
|
operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs)
|
|
{
|
|
typedef basic_string<_CharT,_Traits,_Alloc> __string_type;
|
|
typedef typename __string_type::size_type __size_type;
|
|
__string_type __str;
|
|
__size_type __len = __rhs.size();
|
|
__str.reserve(__len + 1);
|
|
__str.append(__string_type::size_type(1), __lhs);
|
|
__str.append(__rhs);
|
|
return __str;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>&
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
replace(iterator __i1, iterator __i2, size_type __n2, _CharT __c)
|
|
{
|
|
size_type __n1 = __i2 - __i1;
|
|
size_type __off1 = __i1 - _M_ibegin();
|
|
__LENGTHERROR(max_size() - (this->size() - __n1) <= __n2);
|
|
_M_mutate (__off1, __n1, __n2);
|
|
// Invalidated __i1, __i2
|
|
if (__n2)
|
|
traits_type::assign(_M_data() + __off1, __n2, __c);
|
|
return *this;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
copy(_CharT* __s, size_type __n, size_type __pos) const
|
|
{
|
|
__OUTOFRANGE(__pos > this->size());
|
|
|
|
if (__n > this->size() - __pos)
|
|
__n = this->size() - __pos;
|
|
|
|
traits_type::copy(__s, _M_data() + __pos, __n);
|
|
// 21.3.5.7 par 3: do not append null. (good.)
|
|
return __n;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_t __xpos = __pos;
|
|
const _CharT* __data = _M_data();
|
|
for (; __xpos + __n <= __size; ++__xpos)
|
|
if (traits_type::compare(__data + __xpos, __s, __n) == 0)
|
|
return __xpos;
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find(_CharT __c, size_type __pos) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_type __ret = npos;
|
|
if (__pos < __size)
|
|
{
|
|
const _CharT* __data = _M_data();
|
|
size_type __n = __size - __pos;
|
|
const _CharT* __p = traits_type::find(__data + __pos, __n, __c);
|
|
if (__p)
|
|
__ret = __p - __data;
|
|
}
|
|
return __ret;
|
|
}
|
|
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
rfind(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__n <= __size)
|
|
{
|
|
__pos = std::min(__size - __n ,__pos);
|
|
const _CharT* __data = _M_data();
|
|
do
|
|
{
|
|
if (traits_type::compare(__data + __pos, __s, __n) == 0)
|
|
return __pos;
|
|
}
|
|
while (__pos-- > 0);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
rfind(_CharT __c, size_type __pos) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size)
|
|
{
|
|
size_t __xpos = __size - 1;
|
|
if (__xpos > __pos)
|
|
__xpos = __pos;
|
|
|
|
for (++__xpos; __xpos-- > 0; )
|
|
if (traits_type::eq(_M_data()[__xpos], __c))
|
|
return __xpos;
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_first_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
for (; __n && __pos < this->size(); ++__pos)
|
|
{
|
|
const _CharT* __p = traits_type::find(__s, __n, _M_data()[__pos]);
|
|
if (__p)
|
|
return __pos;
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_last_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size && __n)
|
|
{
|
|
if (--__size > __pos)
|
|
__size = __pos;
|
|
do
|
|
{
|
|
if (traits_type::find(__s, __n, _M_data()[__size]))
|
|
return __size;
|
|
}
|
|
while (__size-- != 0);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_first_not_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_t __xpos = __pos;
|
|
for (; __n && __xpos < this->size(); ++__xpos)
|
|
if (!traits_type::find(__s, __n, _M_data()[__xpos]))
|
|
return __xpos;
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_first_not_of(_CharT __c, size_type __pos) const
|
|
{
|
|
size_t __xpos = __pos;
|
|
for (; __xpos < this->size(); ++__xpos)
|
|
if (!traits_type::eq(_M_data()[__xpos], __c))
|
|
return __xpos;
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_last_not_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size && __n)
|
|
{
|
|
if (--__size > __pos)
|
|
__size = __pos;
|
|
do
|
|
{
|
|
if (!traits_type::find(__s, __n, _M_data()[__size]))
|
|
return __size;
|
|
}
|
|
while (__size--);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_last_not_of(_CharT __c, size_type __pos) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size)
|
|
{
|
|
if (--__size > __pos)
|
|
__size = __pos;
|
|
do
|
|
{
|
|
if (!traits_type::eq(_M_data()[__size], __c))
|
|
return __size;
|
|
}
|
|
while (__size--);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
compare(size_type __pos, size_type __n, const basic_string& __str) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_type __osize = __str.size();
|
|
__OUTOFRANGE(__pos > __size);
|
|
|
|
size_type __rsize= min(__size - __pos, __n);
|
|
size_type __len = min(__rsize, __osize);
|
|
int __r = traits_type::compare(_M_data() + __pos, __str.data(), __len);
|
|
if (!__r)
|
|
__r = __rsize - __osize;
|
|
return __r;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
compare(size_type __pos1, size_type __n1, const basic_string& __str,
|
|
size_type __pos2, size_type __n2) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_type __osize = __str.size();
|
|
__OUTOFRANGE(__pos1 > __size);
|
|
__OUTOFRANGE(__pos2 > __osize);
|
|
|
|
size_type __rsize = min(__size - __pos1, __n1);
|
|
size_type __rosize = min(__osize - __pos2, __n2);
|
|
size_type __len = min(__rsize, __rosize);
|
|
int __r = traits_type::compare(_M_data() + __pos1,
|
|
__str.data() + __pos2, __len);
|
|
if (!__r)
|
|
__r = __rsize - __rosize;
|
|
return __r;
|
|
}
|
|
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
compare(const _CharT* __s) const
|
|
{
|
|
size_type __size = this->size();
|
|
int __r = traits_type::compare(_M_data(), __s, __size);
|
|
if (!__r)
|
|
__r = __size - traits_type::length(__s);
|
|
return __r;
|
|
}
|
|
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string <_CharT,_Traits,_Alloc>::
|
|
compare(size_type __pos, size_type __n1, const _CharT* __s,
|
|
size_type __n2) const
|
|
{
|
|
size_type __size = this->size();
|
|
__OUTOFRANGE(__pos > __size);
|
|
|
|
size_type __osize = min(traits_type::length(__s), __n2);
|
|
size_type __rsize = min(__size - __pos, __n1);
|
|
size_type __len = min(__rsize, __osize);
|
|
int __r = traits_type::compare(_M_data() + __pos, __s, __len);
|
|
if (!__r)
|
|
__r = __rsize - __osize;
|
|
return __r;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _Alloc>
|
|
void
|
|
_S_string_copy(const basic_string<_CharT, _Traits, _Alloc>& __str,
|
|
_CharT* __buf, typename _Alloc::size_type __bufsiz)
|
|
{
|
|
typedef typename _Alloc::size_type size_type;
|
|
size_type __strsize = __str.size();
|
|
size_type __bytes = min(__strsize, __bufsiz - 1);
|
|
_Traits::copy(__buf, __str.data(), __bytes);
|
|
__buf[__bytes] = _CharT();
|
|
}
|
|
|
|
} // std::
|
|
|
|
#endif /* _CPP_BITS_STRING_TCC */
|