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408 lines
12 KiB
408 lines
12 KiB
3 years ago
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// ostream classes -*- C++ -*-
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// Copyright (C) 1997-2021 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 3, 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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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file bits/ostream.tcc
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{ostream}
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*/
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//
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// ISO C++ 14882: 27.6.2 Output streams
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//
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#ifndef _OSTREAM_TCC
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#define _OSTREAM_TCC 1
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#pragma GCC system_header
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#include <bits/cxxabi_forced.h>
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>::sentry::
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sentry(basic_ostream<_CharT, _Traits>& __os)
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: _M_ok(false), _M_os(__os)
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{
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// XXX MT
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if (__os.tie() && __os.good())
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__os.tie()->flush();
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if (__os.good())
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_M_ok = true;
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else
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__os.setstate(ios_base::failbit);
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}
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template<typename _CharT, typename _Traits>
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template<typename _ValueT>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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_M_insert(_ValueT __v)
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{
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sentry __cerb(*this);
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if (__cerb)
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{
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ios_base::iostate __err = ios_base::goodbit;
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__try
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{
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const __num_put_type& __np = __check_facet(this->_M_num_put);
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if (__np.put(*this, *this, this->fill(), __v).failed())
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__err |= ios_base::badbit;
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::badbit); }
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if (__err)
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this->setstate(__err);
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}
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return *this;
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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operator<<(short __n)
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 117. basic_ostream uses nonexistent num_put member functions.
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const ios_base::fmtflags __fmt = this->flags() & ios_base::basefield;
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if (__fmt == ios_base::oct || __fmt == ios_base::hex)
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return _M_insert(static_cast<long>(static_cast<unsigned short>(__n)));
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else
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return _M_insert(static_cast<long>(__n));
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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operator<<(int __n)
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 117. basic_ostream uses nonexistent num_put member functions.
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const ios_base::fmtflags __fmt = this->flags() & ios_base::basefield;
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if (__fmt == ios_base::oct || __fmt == ios_base::hex)
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return _M_insert(static_cast<long>(static_cast<unsigned int>(__n)));
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else
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return _M_insert(static_cast<long>(__n));
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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operator<<(__streambuf_type* __sbin)
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{
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ios_base::iostate __err = ios_base::goodbit;
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sentry __cerb(*this);
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if (__cerb && __sbin)
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{
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__try
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{
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if (!__copy_streambufs(__sbin, this->rdbuf()))
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__err |= ios_base::failbit;
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::failbit); }
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}
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else if (!__sbin)
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__err |= ios_base::badbit;
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if (__err)
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this->setstate(__err);
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return *this;
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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put(char_type __c)
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// DR 60. What is a formatted input function?
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// basic_ostream::put(char_type) is an unformatted output function.
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// DR 63. Exception-handling policy for unformatted output.
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// Unformatted output functions should catch exceptions thrown
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// from streambuf members.
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sentry __cerb(*this);
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if (__cerb)
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{
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ios_base::iostate __err = ios_base::goodbit;
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__try
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{
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const int_type __put = this->rdbuf()->sputc(__c);
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if (traits_type::eq_int_type(__put, traits_type::eof()))
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__err |= ios_base::badbit;
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::badbit); }
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if (__err)
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this->setstate(__err);
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}
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return *this;
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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write(const _CharT* __s, streamsize __n)
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// DR 60. What is a formatted input function?
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// basic_ostream::write(const char_type*, streamsize) is an
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// unformatted output function.
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// DR 63. Exception-handling policy for unformatted output.
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// Unformatted output functions should catch exceptions thrown
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// from streambuf members.
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sentry __cerb(*this);
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if (__cerb)
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{
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__try
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{ _M_write(__s, __n); }
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::badbit); }
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}
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return *this;
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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flush()
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// DR 60. What is a formatted input function?
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// basic_ostream::flush() is *not* an unformatted output function.
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ios_base::iostate __err = ios_base::goodbit;
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__try
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{
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if (this->rdbuf() && this->rdbuf()->pubsync() == -1)
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__err |= ios_base::badbit;
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::badbit); }
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if (__err)
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this->setstate(__err);
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return *this;
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}
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template<typename _CharT, typename _Traits>
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typename basic_ostream<_CharT, _Traits>::pos_type
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basic_ostream<_CharT, _Traits>::
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tellp()
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{
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pos_type __ret = pos_type(-1);
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__try
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{
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if (!this->fail())
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__ret = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::out);
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::badbit); }
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return __ret;
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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seekp(pos_type __pos)
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{
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ios_base::iostate __err = ios_base::goodbit;
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__try
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{
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if (!this->fail())
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 136. seekp, seekg setting wrong streams?
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const pos_type __p = this->rdbuf()->pubseekpos(__pos,
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ios_base::out);
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// 129. Need error indication from seekp() and seekg()
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if (__p == pos_type(off_type(-1)))
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__err |= ios_base::failbit;
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}
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::badbit); }
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if (__err)
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this->setstate(__err);
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return *this;
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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basic_ostream<_CharT, _Traits>::
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seekp(off_type __off, ios_base::seekdir __dir)
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{
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ios_base::iostate __err = ios_base::goodbit;
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__try
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{
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if (!this->fail())
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 136. seekp, seekg setting wrong streams?
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const pos_type __p = this->rdbuf()->pubseekoff(__off, __dir,
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ios_base::out);
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// 129. Need error indication from seekp() and seekg()
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if (__p == pos_type(off_type(-1)))
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__err |= ios_base::failbit;
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}
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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this->_M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ this->_M_setstate(ios_base::badbit); }
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if (__err)
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this->setstate(__err);
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return *this;
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}
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template<typename _CharT, typename _Traits>
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basic_ostream<_CharT, _Traits>&
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operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
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{
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if (!__s)
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__out.setstate(ios_base::badbit);
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else
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 167. Improper use of traits_type::length()
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const size_t __clen = char_traits<char>::length(__s);
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__try
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{
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struct __ptr_guard
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{
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_CharT *__p;
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__ptr_guard (_CharT *__ip): __p(__ip) { }
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~__ptr_guard() { delete[] __p; }
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_CharT* __get() { return __p; }
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} __pg (new _CharT[__clen]);
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_CharT *__ws = __pg.__get();
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for (size_t __i = 0; __i < __clen; ++__i)
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__ws[__i] = __out.widen(__s[__i]);
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__ostream_insert(__out, __ws, __clen);
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}
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__catch(__cxxabiv1::__forced_unwind&)
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{
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__out._M_setstate(ios_base::badbit);
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__throw_exception_again;
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}
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__catch(...)
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{ __out._M_setstate(ios_base::badbit); }
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}
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return __out;
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}
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// Inhibit implicit instantiations for required instantiations,
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// which are defined via explicit instantiations elsewhere.
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#if _GLIBCXX_EXTERN_TEMPLATE
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extern template class basic_ostream<char>;
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extern template ostream& endl(ostream&);
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||
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extern template ostream& ends(ostream&);
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||
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extern template ostream& flush(ostream&);
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||
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extern template ostream& operator<<(ostream&, char);
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||
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extern template ostream& operator<<(ostream&, unsigned char);
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||
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extern template ostream& operator<<(ostream&, signed char);
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||
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extern template ostream& operator<<(ostream&, const char*);
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||
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extern template ostream& operator<<(ostream&, const unsigned char*);
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extern template ostream& operator<<(ostream&, const signed char*);
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extern template ostream& ostream::_M_insert(long);
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extern template ostream& ostream::_M_insert(unsigned long);
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extern template ostream& ostream::_M_insert(bool);
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#ifdef _GLIBCXX_USE_LONG_LONG
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extern template ostream& ostream::_M_insert(long long);
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extern template ostream& ostream::_M_insert(unsigned long long);
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#endif
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extern template ostream& ostream::_M_insert(double);
|
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extern template ostream& ostream::_M_insert(long double);
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extern template ostream& ostream::_M_insert(const void*);
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#ifdef _GLIBCXX_USE_WCHAR_T
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extern template class basic_ostream<wchar_t>;
|
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extern template wostream& endl(wostream&);
|
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extern template wostream& ends(wostream&);
|
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extern template wostream& flush(wostream&);
|
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extern template wostream& operator<<(wostream&, wchar_t);
|
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|
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extern template wostream& operator<<(wostream&, char);
|
||
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extern template wostream& operator<<(wostream&, const wchar_t*);
|
||
|
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extern template wostream& operator<<(wostream&, const char*);
|
||
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|
||
|
|
extern template wostream& wostream::_M_insert(long);
|
||
|
|
extern template wostream& wostream::_M_insert(unsigned long);
|
||
|
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extern template wostream& wostream::_M_insert(bool);
|
||
|
|
#ifdef _GLIBCXX_USE_LONG_LONG
|
||
|
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extern template wostream& wostream::_M_insert(long long);
|
||
|
|
extern template wostream& wostream::_M_insert(unsigned long long);
|
||
|
|
#endif
|
||
|
|
extern template wostream& wostream::_M_insert(double);
|
||
|
|
extern template wostream& wostream::_M_insert(long double);
|
||
|
|
extern template wostream& wostream::_M_insert(const void*);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
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|
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|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
||
|
|
} // namespace std
|
||
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|
||
|
|
#endif
|