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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_SSTREAM
#define _LIBCPP_SSTREAM
// clang-format off
/*
sstream synopsis [sstream.syn]
// Class template basic_stringbuf [stringbuf]
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_stringbuf
: public basic_streambuf<charT, traits>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// [stringbuf.cons] constructors:
explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out); // before C++20
basic_stringbuf() : basic_stringbuf(ios_base::in | ios_base::out) {} // C++20
explicit basic_stringbuf(ios_base::openmode which); // C++20
explicit basic_stringbuf(const basic_string<char_type, traits_type, allocator_type>& s,
ios_base::openmode which = ios_base::in | ios_base::out);
explicit basic_stringbuf(const allocator_type& a)
: basic_stringbuf(ios_base::in | ios_base::out, a) {} // C++20
basic_stringbuf(ios_base::openmode which, const allocator_type& a); // C++20
explicit basic_stringbuf(basic_string<char_type, traits_type, allocator_type>&& s,
ios_base::openmode which = ios_base::in | ios_base::out); // C++20
template <class SAlloc>
basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a)
: basic_stringbuf(s, ios_base::in | ios_base::out, a) {} // C++20
template <class SAlloc>
basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which, const allocator_type& a); // C++20
template <class SAlloc>
explicit basic_stringbuf(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which = ios_base::in | ios_base::out); // C++20
template<class T>
explicit basic_stringbuf(const T& t,
ios_base::openmode which = ios_base::in | ios_base::out); // Since C++26
template<class T>
basic_stringbuf(const T& t, const Allocator& a); // Since C++26
template<class T>
basic_stringbuf(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26
basic_stringbuf(const basic_stringbuf&) = delete;
basic_stringbuf(basic_stringbuf&& rhs);
basic_stringbuf(basic_stringbuf&& rhs, const allocator_type& a); // C++20
// [stringbuf.assign] Assign and swap:
basic_stringbuf& operator=(const basic_stringbuf&) = delete;
basic_stringbuf& operator=(basic_stringbuf&& rhs);
void swap(basic_stringbuf& rhs) noexcept(see below); // conditionally noexcept since C++20
// [stringbuf.members] Member functions:
allocator_type get_allocator() const noexcept; // C++20
basic_string<char_type, traits_type, allocator_type> str() const; // before C++20
basic_string<char_type, traits_type, allocator_type> str() const &; // C++20
template <class SAlloc>
basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20
basic_string<char_type, traits_type, allocator_type> str() &&; // C++20
basic_string_view<char_type, traits_type> view() const noexcept; // C++20
void str(const basic_string<char_type, traits_type, allocator_type>& s);
template <class SAlloc>
void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20
void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20
template<class T>
void str(const T& t); // Since C++26
protected:
// [stringbuf.virtuals] Overridden virtual functions:
virtual int_type underflow();
virtual int_type pbackfail(int_type c = traits_type::eof());
virtual int_type overflow (int_type c = traits_type::eof());
virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize);
virtual pos_type seekoff(off_type off, ios_base::seekdir way,
ios_base::openmode which = ios_base::in | ios_base::out);
virtual pos_type seekpos(pos_type sp,
ios_base::openmode which = ios_base::in | ios_base::out);
};
// [stringbuf.assign] non member swap
template <class charT, class traits, class Allocator>
void swap(basic_stringbuf<charT, traits, Allocator>& x,
basic_stringbuf<charT, traits, Allocator>& y); // conditionally noexcept since C++20
typedef basic_stringbuf<char> stringbuf;
typedef basic_stringbuf<wchar_t> wstringbuf;
// Class template basic_istringstream [istringstream]
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_istringstream
: public basic_istream<charT, traits>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// [istringstream.cons] Constructors:
explicit basic_istringstream(ios_base::openmode which = ios_base::in); // before C++20
basic_istringstream() : basic_istringstream(ios_base::in) {} // C++20
explicit basic_istringstream(ios_base::openmode which); // C++20
explicit basic_istringstream(const basic_string<char_type, traits_type, allocator_type>& s,
ios_base::openmode which = ios_base::in);
basic_istringstream(ios_base::openmode which, const allocator_type& a); // C++20
explicit basic_istringstream(basic_string<char_type, traits_type, allocator_type>&& s,
ios_base::openmode which = ios_base::in); // C++20
template <class SAlloc>
basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a)
: basic_istringstream(s, ios_base::in, a) {} // C++20
template <class SAlloc>
basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which, const allocator_type& a); // C++20
template <class SAlloc>
explicit basic_istringstream(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which = ios_base::in); // C++20
template<class T>
explicit basic_istringstream(const T& t, ios_base::openmode which = ios_base::in); // Since C++26
template<class T>
basic_istringstream(const T& t, const Allocator& a); // Since C++26
template<class T>
basic_istringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26
basic_istringstream(const basic_istringstream&) = delete;
basic_istringstream(basic_istringstream&& rhs);
// [istringstream.assign] Assign and swap:
basic_istringstream& operator=(const basic_istringstream&) = delete;
basic_istringstream& operator=(basic_istringstream&& rhs);
void swap(basic_istringstream& rhs);
// [istringstream.members] Member functions:
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
basic_string<char_type, traits_type, allocator_type> str() const; // before C++20
basic_string<char_type, traits_type, allocator_type> str() const &; // C++20
template <class SAlloc>
basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20
basic_string<char_type, traits_type, allocator_type> str() &&; // C++20
basic_string_view<char_type, traits_type> view() const noexcept; // C++20
void str(const basic_string<char_type, traits_type, allocator_type>& s);
template <class SAlloc>
void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20
void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20
template<class T>
void str(const T& t); // Since C++26
};
template <class charT, class traits, class Allocator>
void swap(basic_istringstream<charT, traits, Allocator>& x,
basic_istringstream<charT, traits, Allocator>& y);
typedef basic_istringstream<char> istringstream;
typedef basic_istringstream<wchar_t> wistringstream;
// Class template basic_ostringstream [ostringstream]
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_ostringstream
: public basic_ostream<charT, traits>
{
public:
// types:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// [ostringstream.cons] Constructors:
explicit basic_ostringstream(ios_base::openmode which = ios_base::out); // before C++20
basic_ostringstream() : basic_ostringstream(ios_base::out) {} // C++20
explicit basic_ostringstream(ios_base::openmode which); // C++20
explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& s,
ios_base::openmode which = ios_base::out);
basic_ostringstream(ios_base::openmode which, const allocator_type& a); // C++20
explicit basic_ostringstream(basic_string<char_type, traits_type, allocator_type>&& s,
ios_base::openmode which = ios_base::out); // C++20
template <class SAlloc>
basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a)
: basic_ostringstream(s, ios_base::out, a) {} // C++20
template <class SAlloc>
basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which, const allocator_type& a); // C++20
template <class SAlloc>
explicit basic_ostringstream(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which = ios_base::out); // C++20
template<class T>
explicit basic_ostringstream(const T& t, ios_base::openmode which = ios_base::out); // Since C++26
template<class T>
basic_ostringstream(const T& t, const Allocator& a); // Since C++26
template<class T>
basic_ostringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26
basic_ostringstream(const basic_ostringstream&) = delete;
basic_ostringstream(basic_ostringstream&& rhs);
// [ostringstream.assign] Assign and swap:
basic_ostringstream& operator=(const basic_ostringstream&) = delete;
basic_ostringstream& operator=(basic_ostringstream&& rhs);
void swap(basic_ostringstream& rhs);
// [ostringstream.members] Member functions:
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
basic_string<char_type, traits_type, allocator_type> str() const; // before C++20
basic_string<char_type, traits_type, allocator_type> str() const &; // C++20
template <class SAlloc>
basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20
basic_string<char_type, traits_type, allocator_type> str() &&; // C++20
basic_string_view<char_type, traits_type> view() const noexcept; // C++20
void str(const basic_string<char_type, traits_type, allocator_type>& s);
template <class SAlloc>
void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20
void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20
template<class T>
void str(const T& t); // Since C++26
};
template <class charT, class traits, class Allocator>
void swap(basic_ostringstream<charT, traits, Allocator>& x,
basic_ostringstream<charT, traits, Allocator>& y);
typedef basic_ostringstream<char> ostringstream;
typedef basic_ostringstream<wchar_t> wostringstream;
// Class template basic_stringstream [stringstream]
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_stringstream
: public basic_iostream<charT, traits>
{
public:
// types:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// [stringstream.cons] constructors
explicit basic_stringstream(ios_base::openmode which = ios_base::out | ios_base::in); // before C++20
basic_stringstream() : basic_stringstream(ios_base::out | ios_base::in) {} // C++20
explicit basic_stringstream(ios_base::openmode which); // C++20
explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& s,
ios_base::openmode which = ios_base::out | ios_base::in);
basic_stringstream(ios_base::openmode which, const allocator_type& a); // C++20
explicit basic_stringstream(basic_string<char_type, traits_type, allocator_type>&& s,
ios_base::openmode which = ios_base::out | ios_base::in); // C++20
template <class SAlloc>
basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s, const allocator_type& a)
: basic_stringstream(s, ios_base::out | ios_base::in, a) {} // C++20
template <class SAlloc>
basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which, const allocator_type& a); // C++20
template <class SAlloc>
explicit basic_stringstream(const basic_string<char_type, traits_type, SAlloc>& s,
ios_base::openmode which = ios_base::out | ios_base::in); // C++20
template<class T>
explicit basic_stringstream(const T& t,
ios_base::openmode which = ios_base::out | ios_base::in); // Since C++26
template<class T>
basic_stringstream(const T& t, const Allocator& a); // Since C++26
template<class T>
basic_stringstream(const T& t, ios_base::openmode which, const Allocator& a); // Since C++26
basic_stringstream(const basic_stringstream&) = delete;
basic_stringstream(basic_stringstream&& rhs);
// [stringstream.assign] Assign and swap:
basic_stringstream& operator=(const basic_stringstream&) = delete;
basic_stringstream& operator=(basic_stringstream&& rhs);
void swap(basic_stringstream& rhs);
// [stringstream.members] Member functions:
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
basic_string<char_type, traits_type, allocator_type> str() const; // before C++20
basic_string<char_type, traits_type, allocator_type> str() const &; // C++20
template <class SAlloc>
basic_string<char_type, traits_type, SAlloc> str(const SAlloc& sa) const; // C++20
basic_string<char_type, traits_type, allocator_type> str() &&; // C++20
basic_string_view<char_type, traits_type> view() const noexcept; // C++20
void str(const basic_string<char_type, traits_type, allocator_type>& s);
template <class SAlloc>
void str(const basic_string<char_type, traits_type, SAlloc>& s); // C++20
void str(basic_string<char_type, traits_type, allocator_type>&& s); // C++20
template<class T>
void str(const T& t); // Since C++26
};
template <class charT, class traits, class Allocator>
void swap(basic_stringstream<charT, traits, Allocator>& x,
basic_stringstream<charT, traits, Allocator>& y);
typedef basic_stringstream<char> stringstream;
typedef basic_stringstream<wchar_t> wstringstream;
} // std
*/
// clang-format on
#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
# include <__cxx03/sstream>
#else
# include <__config>
# if _LIBCPP_HAS_LOCALIZATION
# include <__fwd/sstream.h>
# include <__ostream/basic_ostream.h>
# include <__type_traits/is_convertible.h>
# include <__utility/swap.h>
# include <ios>
# include <istream>
# include <locale>
# include <string>
# include <string_view>
# include <version>
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
# endif
_LIBCPP_PUSH_MACROS
# include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
// Class template basic_stringbuf [stringbuf]
template <class _CharT, class _Traits, class _Allocator>
class basic_stringbuf : public basic_streambuf<_CharT, _Traits> {
public:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef _Allocator allocator_type;
typedef basic_string<char_type, traits_type, allocator_type> string_type;
private:
string_type __str_;
mutable char_type* __hm_;
ios_base::openmode __mode_;
_LIBCPP_HIDE_FROM_ABI void __init_buf_ptrs();
_LIBCPP_HIDE_FROM_ABI void __move_init(basic_stringbuf&& __rhs);
public:
// [stringbuf.cons] constructors:
_LIBCPP_HIDE_FROM_ABI basic_stringbuf() : __hm_(nullptr), __mode_(ios_base::in | ios_base::out) {
// it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't
__init_buf_ptrs();
}
_LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(ios_base::openmode __wch) : __hm_(nullptr), __mode_(__wch) {
// it is implementation-defined whether we initialize eback() & friends to nullptr, and libc++ doesn't
__init_buf_ptrs();
}
_LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const string_type& __s,
ios_base::openmode __wch = ios_base::in | ios_base::out)
: __str_(__s.get_allocator()), __hm_(nullptr), __mode_(__wch) {
str(__s);
}
# if _LIBCPP_STD_VER >= 20
_LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const allocator_type& __a)
: basic_stringbuf(ios_base::in | ios_base::out, __a) {}
_LIBCPP_HIDE_FROM_ABI basic_stringbuf(ios_base::openmode __wch, const allocator_type& __a)
: __str_(__a), __hm_(nullptr), __mode_(__wch) {
__init_buf_ptrs();
}
_LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(string_type&& __s,
ios_base::openmode __wch = ios_base::in | ios_base::out)
: __str_(std::move(__s)), __hm_(nullptr), __mode_(__wch) {
__init_buf_ptrs();
}
template <class _SAlloc>
_LIBCPP_HIDE_FROM_ABI
basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s, const allocator_type& __a)
: basic_stringbuf(__s, ios_base::in | ios_base::out, __a) {}
template <class _SAlloc>
_LIBCPP_HIDE_FROM_ABI basic_stringbuf(
const basic_string<char_type, traits_type, _SAlloc>& __s, ios_base::openmode __wch, const allocator_type& __a)
: __str_(__s, __a), __hm_(nullptr), __mode_(__wch) {
__init_buf_ptrs();
}
template <class _SAlloc>
requires(!is_same_v<_SAlloc, allocator_type>)
_LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const basic_string<char_type, traits_type, _SAlloc>& __s,
ios_base::openmode __wch = ios_base::in | ios_base::out)
: __str_(__s), __hm_(nullptr), __mode_(__wch) {
__init_buf_ptrs();
}
# endif // _LIBCPP_STD_VER >= 20
# if _LIBCPP_STD_VER >= 26
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI explicit basic_stringbuf(const _Tp& __t,
ios_base::openmode __which = ios_base::in | ios_base::out)
: basic_stringbuf(__t, __which, _Allocator()) {}
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, const _Allocator& __a)
: basic_stringbuf(__t, ios_base::in | ios_base::out, __a) {}
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI basic_stringbuf(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a)
: __hm_(nullptr), __mode_(__which) {
basic_string_view<_CharT, _Traits> __sv = __t;
__str_ = string_type(__sv, __a);
__init_buf_ptrs();
}
# endif // _LIBCPP_STD_VER >= 26
basic_stringbuf(const basic_stringbuf&) = delete;
basic_stringbuf(basic_stringbuf&& __rhs) : __mode_(__rhs.__mode_) { __move_init(std::move(__rhs)); }
# if _LIBCPP_STD_VER >= 20
_LIBCPP_HIDE_FROM_ABI basic_stringbuf(basic_stringbuf&& __rhs, const allocator_type& __a)
: basic_stringbuf(__rhs.__mode_, __a) {
__move_init(std::move(__rhs));
}
# endif
// [stringbuf.assign] Assign and swap:
basic_stringbuf& operator=(const basic_stringbuf&) = delete;
basic_stringbuf& operator=(basic_stringbuf&& __rhs);
void swap(basic_stringbuf& __rhs)
# if _LIBCPP_STD_VER >= 20
noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value ||
allocator_traits<allocator_type>::is_always_equal::value)
# endif
;
// [stringbuf.members] Member functions:
# if _LIBCPP_STD_VER >= 20
_LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const noexcept { return __str_.get_allocator(); }
# endif
# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
string_type str() const;
# else
_LIBCPP_HIDE_FROM_ABI string_type str() const& { return str(__str_.get_allocator()); }
_LIBCPP_HIDE_FROM_ABI string_type str() && {
const basic_string_view<_CharT, _Traits> __view = view();
typename string_type::size_type __pos = __view.empty() ? 0 : __view.data() - __str_.data();
// In C++23, this is just string_type(std::move(__str_), __pos, __view.size(), __str_.get_allocator());
// But we need something that works in C++20 also.
string_type __result(std::move(__str_), __str_.get_allocator());
__result.resize(__pos + __view.size());
__result.erase(0, __pos);
__init_buf_ptrs();
return __result;
}
# endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
# if _LIBCPP_STD_VER >= 20
template <class _SAlloc>
requires __is_allocator<_SAlloc>::value
_LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const {
return basic_string<_CharT, _Traits, _SAlloc>(view(), __sa);
}
_LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept;
# endif // _LIBCPP_STD_VER >= 20
void str(const string_type& __s) {
__str_ = __s;
__init_buf_ptrs();
}
# if _LIBCPP_STD_VER >= 20
template <class _SAlloc>
requires(!is_same_v<_SAlloc, allocator_type>)
_LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) {
__str_ = __s;
__init_buf_ptrs();
}
_LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) {
__str_ = std::move(__s);
__init_buf_ptrs();
}
# endif // _LIBCPP_STD_VER >= 20
# if _LIBCPP_STD_VER >= 26
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) {
basic_string_view<_CharT, _Traits> __sv = __t;
__str_ = __sv;
__init_buf_ptrs();
}
# endif // _LIBCPP_STD_VER >= 26
protected:
// [stringbuf.virtuals] Overridden virtual functions:
int_type underflow() override;
int_type pbackfail(int_type __c = traits_type::eof()) override;
int_type overflow(int_type __c = traits_type::eof()) override;
pos_type
seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __wch = ios_base::in | ios_base::out) override;
_LIBCPP_HIDE_FROM_ABI_VIRTUAL
pos_type seekpos(pos_type __sp, ios_base::openmode __wch = ios_base::in | ios_base::out) override {
return seekoff(__sp, ios_base::beg, __wch);
}
};
template <class _CharT, class _Traits, class _Allocator>
_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__move_init(basic_stringbuf&& __rhs) {
char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
ptrdiff_t __binp = -1;
ptrdiff_t __ninp = -1;
ptrdiff_t __einp = -1;
if (__rhs.eback() != nullptr) {
__binp = __rhs.eback() - __p;
__ninp = __rhs.gptr() - __p;
__einp = __rhs.egptr() - __p;
}
ptrdiff_t __bout = -1;
ptrdiff_t __nout = -1;
ptrdiff_t __eout = -1;
if (__rhs.pbase() != nullptr) {
__bout = __rhs.pbase() - __p;
__nout = __rhs.pptr() - __p;
__eout = __rhs.epptr() - __p;
}
ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
__str_ = std::move(__rhs.__str_);
__p = const_cast<char_type*>(__str_.data());
if (__binp != -1)
this->setg(__p + __binp, __p + __ninp, __p + __einp);
if (__bout != -1) {
this->setp(__p + __bout, __p + __eout);
this->__pbump(__nout);
}
__hm_ = __hm == -1 ? nullptr : __p + __hm;
__p = const_cast<char_type*>(__rhs.__str_.data());
__rhs.setg(__p, __p, __p);
__rhs.setp(__p, __p);
__rhs.__hm_ = __p;
this->pubimbue(__rhs.getloc());
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>&
basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) {
char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
ptrdiff_t __binp = -1;
ptrdiff_t __ninp = -1;
ptrdiff_t __einp = -1;
if (__rhs.eback() != nullptr) {
__binp = __rhs.eback() - __p;
__ninp = __rhs.gptr() - __p;
__einp = __rhs.egptr() - __p;
}
ptrdiff_t __bout = -1;
ptrdiff_t __nout = -1;
ptrdiff_t __eout = -1;
if (__rhs.pbase() != nullptr) {
__bout = __rhs.pbase() - __p;
__nout = __rhs.pptr() - __p;
__eout = __rhs.epptr() - __p;
}
ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
__str_ = std::move(__rhs.__str_);
__p = const_cast<char_type*>(__str_.data());
if (__binp != -1)
this->setg(__p + __binp, __p + __ninp, __p + __einp);
else
this->setg(nullptr, nullptr, nullptr);
if (__bout != -1) {
this->setp(__p + __bout, __p + __eout);
this->__pbump(__nout);
} else
this->setp(nullptr, nullptr);
__hm_ = __hm == -1 ? nullptr : __p + __hm;
__mode_ = __rhs.__mode_;
__p = const_cast<char_type*>(__rhs.__str_.data());
__rhs.setg(__p, __p, __p);
__rhs.setp(__p, __p);
__rhs.__hm_ = __p;
this->pubimbue(__rhs.getloc());
return *this;
}
template <class _CharT, class _Traits, class _Allocator>
void basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs)
# if _LIBCPP_STD_VER >= 20
noexcept(allocator_traits<_Allocator>::propagate_on_container_swap::value ||
allocator_traits<_Allocator>::is_always_equal::value)
# endif
{
char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
ptrdiff_t __rbinp = -1;
ptrdiff_t __rninp = -1;
ptrdiff_t __reinp = -1;
if (__rhs.eback() != nullptr) {
__rbinp = __rhs.eback() - __p;
__rninp = __rhs.gptr() - __p;
__reinp = __rhs.egptr() - __p;
}
ptrdiff_t __rbout = -1;
ptrdiff_t __rnout = -1;
ptrdiff_t __reout = -1;
if (__rhs.pbase() != nullptr) {
__rbout = __rhs.pbase() - __p;
__rnout = __rhs.pptr() - __p;
__reout = __rhs.epptr() - __p;
}
ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
__p = const_cast<char_type*>(__str_.data());
ptrdiff_t __lbinp = -1;
ptrdiff_t __lninp = -1;
ptrdiff_t __leinp = -1;
if (this->eback() != nullptr) {
__lbinp = this->eback() - __p;
__lninp = this->gptr() - __p;
__leinp = this->egptr() - __p;
}
ptrdiff_t __lbout = -1;
ptrdiff_t __lnout = -1;
ptrdiff_t __leout = -1;
if (this->pbase() != nullptr) {
__lbout = this->pbase() - __p;
__lnout = this->pptr() - __p;
__leout = this->epptr() - __p;
}
ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p;
std::swap(__mode_, __rhs.__mode_);
__str_.swap(__rhs.__str_);
__p = const_cast<char_type*>(__str_.data());
if (__rbinp != -1)
this->setg(__p + __rbinp, __p + __rninp, __p + __reinp);
else
this->setg(nullptr, nullptr, nullptr);
if (__rbout != -1) {
this->setp(__p + __rbout, __p + __reout);
this->__pbump(__rnout);
} else
this->setp(nullptr, nullptr);
__hm_ = __rhm == -1 ? nullptr : __p + __rhm;
__p = const_cast<char_type*>(__rhs.__str_.data());
if (__lbinp != -1)
__rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp);
else
__rhs.setg(nullptr, nullptr, nullptr);
if (__lbout != -1) {
__rhs.setp(__p + __lbout, __p + __leout);
__rhs.__pbump(__lnout);
} else
__rhs.setp(nullptr, nullptr);
__rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm;
locale __tl = __rhs.getloc();
__rhs.pubimbue(this->getloc());
this->pubimbue(__tl);
}
template <class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_HIDE_FROM_ABI void
swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, basic_stringbuf<_CharT, _Traits, _Allocator>& __y)
# if _LIBCPP_STD_VER >= 20
noexcept(noexcept(__x.swap(__y)))
# endif
{
__x.swap(__y);
}
# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator> basic_stringbuf<_CharT, _Traits, _Allocator>::str() const {
if (__mode_ & ios_base::out) {
if (__hm_ < this->pptr())
__hm_ = this->pptr();
return string_type(this->pbase(), __hm_, __str_.get_allocator());
} else if (__mode_ & ios_base::in)
return string_type(this->eback(), this->egptr(), __str_.get_allocator());
return string_type(__str_.get_allocator());
}
# endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
template <class _CharT, class _Traits, class _Allocator>
_LIBCPP_HIDE_FROM_ABI void basic_stringbuf<_CharT, _Traits, _Allocator>::__init_buf_ptrs() {
__hm_ = nullptr;
char_type* __data = const_cast<char_type*>(__str_.data());
typename string_type::size_type __sz = __str_.size();
if (__mode_ & ios_base::in) {
__hm_ = __data + __sz;
this->setg(__data, __data, __hm_);
}
if (__mode_ & ios_base::out) {
__hm_ = __data + __sz;
__str_.resize(__str_.capacity());
this->setp(__data, __data + __str_.size());
if (__mode_ & (ios_base::app | ios_base::ate)) {
while (__sz > INT_MAX) {
this->pbump(INT_MAX);
__sz -= INT_MAX;
}
if (__sz > 0)
this->pbump(__sz);
}
}
}
# if _LIBCPP_STD_VER >= 20
template <class _CharT, class _Traits, class _Allocator>
_LIBCPP_HIDE_FROM_ABI basic_string_view<_CharT, _Traits>
basic_stringbuf<_CharT, _Traits, _Allocator>::view() const noexcept {
if (__mode_ & ios_base::out) {
if (__hm_ < this->pptr())
__hm_ = this->pptr();
return basic_string_view<_CharT, _Traits>(this->pbase(), __hm_);
} else if (__mode_ & ios_base::in)
return basic_string_view<_CharT, _Traits>(this->eback(), this->egptr());
return basic_string_view<_CharT, _Traits>();
}
# endif // _LIBCPP_STD_VER >= 20
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() {
if (__hm_ < this->pptr())
__hm_ = this->pptr();
if (__mode_ & ios_base::in) {
if (this->egptr() < __hm_)
this->setg(this->eback(), this->gptr(), __hm_);
if (this->gptr() < this->egptr())
return traits_type::to_int_type(*this->gptr());
}
return traits_type::eof();
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) {
if (__hm_ < this->pptr())
__hm_ = this->pptr();
if (this->eback() < this->gptr()) {
if (traits_type::eq_int_type(__c, traits_type::eof())) {
this->setg(this->eback(), this->gptr() - 1, __hm_);
return traits_type::not_eof(__c);
}
if ((__mode_ & ios_base::out) || traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) {
this->setg(this->eback(), this->gptr() - 1, __hm_);
*this->gptr() = traits_type::to_char_type(__c);
return __c;
}
}
return traits_type::eof();
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) {
if (!traits_type::eq_int_type(__c, traits_type::eof())) {
ptrdiff_t __ninp = this->gptr() - this->eback();
if (this->pptr() == this->epptr()) {
if (!(__mode_ & ios_base::out))
return traits_type::eof();
# if _LIBCPP_HAS_EXCEPTIONS
try {
# endif // _LIBCPP_HAS_EXCEPTIONS
ptrdiff_t __nout = this->pptr() - this->pbase();
ptrdiff_t __hm = __hm_ - this->pbase();
__str_.push_back(char_type());
__str_.resize(__str_.capacity());
char_type* __p = const_cast<char_type*>(__str_.data());
this->setp(__p, __p + __str_.size());
this->__pbump(__nout);
__hm_ = this->pbase() + __hm;
# if _LIBCPP_HAS_EXCEPTIONS
} catch (...) {
return traits_type::eof();
}
# endif // _LIBCPP_HAS_EXCEPTIONS
}
__hm_ = std::max(this->pptr() + 1, __hm_);
if (__mode_ & ios_base::in) {
char_type* __p = const_cast<char_type*>(__str_.data());
this->setg(__p, __p + __ninp, __hm_);
}
return this->sputc(traits_type::to_char_type(__c));
}
return traits_type::not_eof(__c);
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(
off_type __off, ios_base::seekdir __way, ios_base::openmode __wch) {
if (__hm_ < this->pptr())
__hm_ = this->pptr();
if ((__wch & (ios_base::in | ios_base::out)) == 0)
return pos_type(-1);
if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) && __way == ios_base::cur)
return pos_type(-1);
const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data();
off_type __noff;
switch (__way) {
case ios_base::beg:
__noff = 0;
break;
case ios_base::cur:
if (__wch & ios_base::in)
__noff = this->gptr() - this->eback();
else
__noff = this->pptr() - this->pbase();
break;
case ios_base::end:
__noff = __hm;
break;
default:
return pos_type(-1);
}
__noff += __off;
if (__noff < 0 || __hm < __noff)
return pos_type(-1);
if (__noff != 0) {
if ((__wch & ios_base::in) && this->gptr() == nullptr)
return pos_type(-1);
if ((__wch & ios_base::out) && this->pptr() == nullptr)
return pos_type(-1);
}
if (__wch & ios_base::in)
this->setg(this->eback(), this->eback() + __noff, __hm_);
if (__wch & ios_base::out) {
this->setp(this->pbase(), this->epptr());
this->__pbump(__noff);
}
return pos_type(__noff);
}
// Class template basic_istringstream [istringstream]
template <class _CharT, class _Traits, class _Allocator>
class basic_istringstream : public basic_istream<_CharT, _Traits> {
public:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef _Allocator allocator_type;
typedef basic_string<char_type, traits_type, allocator_type> string_type;
private:
basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
public:
// [istringstream.cons] Constructors:
_LIBCPP_HIDE_FROM_ABI basic_istringstream()
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(ios_base::in) {}
_LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(ios_base::openmode __wch)
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in) {}
_LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const string_type& __s, ios_base::openmode __wch = ios_base::in)
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {}
# if _LIBCPP_STD_VER >= 20
_LIBCPP_HIDE_FROM_ABI basic_istringstream(ios_base::openmode __wch, const _Allocator& __a)
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__wch | ios_base::in, __a) {}
_LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(string_type&& __s, ios_base::openmode __wch = ios_base::in)
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(std::move(__s), __wch | ios_base::in) {}
template <class _SAlloc>
_LIBCPP_HIDE_FROM_ABI basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s, const _Allocator& __a)
: basic_istringstream(__s, ios_base::in, __a) {}
template <class _SAlloc>
_LIBCPP_HIDE_FROM_ABI basic_istringstream(
const basic_string<_CharT, _Traits, _SAlloc>& __s, ios_base::openmode __wch, const _Allocator& __a)
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in, __a) {}
template <class _SAlloc>
_LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const basic_string<_CharT, _Traits, _SAlloc>& __s,
ios_base::openmode __wch = ios_base::in)
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__s, __wch | ios_base::in) {}
# endif // _LIBCPP_STD_VER >= 20
# if _LIBCPP_STD_VER >= 26
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI explicit basic_istringstream(const _Tp& __t, ios_base::openmode __which = ios_base::in)
: basic_istringstream(__t, __which, _Allocator()) {}
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, const _Allocator& __a)
: basic_istringstream(__t, ios_base::in, __a) {}
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI basic_istringstream(const _Tp& __t, ios_base::openmode __which, const _Allocator& __a)
: basic_istream<_CharT, _Traits>(std::addressof(__sb_)), __sb_(__t, __which | ios_base::in, __a) {}
# endif // _LIBCPP_STD_VER >= 26
basic_istringstream(const basic_istringstream&) = delete;
_LIBCPP_HIDE_FROM_ABI basic_istringstream(basic_istringstream&& __rhs)
: basic_istream<_CharT, _Traits>(std::move(__rhs)), __sb_(std::move(__rhs.__sb_)) {
basic_istream<_CharT, _Traits>::set_rdbuf(std::addressof(__sb_));
}
// [istringstream.assign] Assign and swap:
basic_istringstream& operator=(const basic_istringstream&) = delete;
basic_istringstream& operator=(basic_istringstream&& __rhs) {
basic_istream<char_type, traits_type>::operator=(std::move(__rhs));
__sb_ = std::move(__rhs.__sb_);
return *this;
}
_LIBCPP_HIDE_FROM_ABI void swap(basic_istringstream& __rhs) {
basic_istream<char_type, traits_type>::swap(__rhs);
__sb_.swap(__rhs.__sb_);
}
// [istringstream.members] Member functions:
_LIBCPP_HIDE_FROM_ABI basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const {
return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(std::addressof(__sb_));
}
# if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_BUILDING_LIBRARY)
_LIBCPP_HIDE_FROM_ABI string_type str() const { return __sb_.str(); }
# else
_LIBCPP_HIDE_FROM_ABI string_type str() const& { return __sb_.str(); }
_LIBCPP_HIDE_FROM_ABI string_type str() && { return std::move(__sb_).str(); }
# endif
# if _LIBCPP_STD_VER >= 20
template <class _SAlloc>
requires __is_allocator<_SAlloc>::value
_LIBCPP_HIDE_FROM_ABI basic_string<char_type, traits_type, _SAlloc> str(const _SAlloc& __sa) const {
return __sb_.str(__sa);
}
_LIBCPP_HIDE_FROM_ABI basic_string_view<char_type, traits_type> view() const noexcept { return __sb_.view(); }
# endif // _LIBCPP_STD_VER >= 20
_LIBCPP_HIDE_FROM_ABI void str(const string_type& __s) { __sb_.str(__s); }
# if _LIBCPP_STD_VER >= 20
template <class _SAlloc>
_LIBCPP_HIDE_FROM_ABI void str(const basic_string<char_type, traits_type, _SAlloc>& __s) {
__sb_.str(__s);
}
_LIBCPP_HIDE_FROM_ABI void str(string_type&& __s) { __sb_.str(std::move(__s)); }
# endif // _LIBCPP_STD_VER >= 20
# if _LIBCPP_STD_VER >= 26
template <class _Tp>
requires is_convertible_v<const _Tp&, basic_string_view<_CharT, _Traits>>
_LIBCPP_HIDE_FROM_ABI void str(const _Tp& __t) {
rdbuf()->str(__t);
}
# endif // _LIBCPP_STD_VER >= 26
};
template <class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_HIDE_FROM_ABI void
swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, basic_istringstream<_CharT, _Traits, _Allocator>& __y) {
__x.swap(__y);
}
// Class template basic_ostringstream [ostringstream]