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@_I|+ ? // Versatile string -*- C++ -*-
// Copyright (C) 2005-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// .
/** @file ext/vstring.h
* This file is a GNU extension to the Standard C++ Library.
*/
#ifndef _VSTRING_H
#define _VSTRING_H 1
#pragma GCC system_header
#if __cplusplus >= 201103L
#include
#endif
#include
#include
#include
namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* @class __versa_string vstring.h
* @brief Template class __versa_string.
* @ingroup extensions
*
* Data structure managing sequences of characters and
* character-like objects.
*/
template class _Base>
class __versa_string
: private _Base<_CharT, _Traits, _Alloc>
{
typedef _Base<_CharT, _Traits, _Alloc> __vstring_base;
typedef typename __vstring_base::_CharT_alloc_type _CharT_alloc_type;
typedef __alloc_traits<_CharT_alloc_type> _CharT_alloc_traits;
// Types:
public:
typedef _Traits traits_type;
typedef typename _Traits::char_type value_type;
typedef _Alloc allocator_type;
typedef typename _CharT_alloc_type::size_type size_type;
typedef typename _CharT_alloc_type::difference_type difference_type;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef typename _CharT_alloc_traits::pointer pointer;
typedef typename _CharT_alloc_traits::const_pointer const_pointer;
typedef __gnu_cxx::__normal_iterator iterator;
typedef __gnu_cxx::__normal_iterator
const_iterator;
typedef std::reverse_iterator const_reverse_iterator;
typedef std::reverse_iterator reverse_iterator;
// Data Member (public):
/// Value returned by various member functions when they fail.
static const size_type npos = static_cast(-1);
private:
size_type
_M_check(size_type __pos, const char* __s) const
{
if (__pos > this->size())
std::__throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > "
"this->size() (which is %zu)"),
__s, __pos, this->size());
return __pos;
}
void
_M_check_length(size_type __n1, size_type __n2, const char* __s) const
{
if (this->max_size() - (this->size() - __n1) < __n2)
std::__throw_length_error(__N(__s));
}
// NB: _M_limit doesn't check for a bad __pos value.
size_type
_M_limit(size_type __pos, size_type __off) const _GLIBCXX_NOEXCEPT
{
const bool __testoff = __off < this->size() - __pos;
return __testoff ? __off : this->size() -