ostream.tcc
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// ostream classes -*- C++ -*-
// Copyright (C) 1997-2016 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
// <http://www.gnu.org/licenses/>.
/** @file bits/ostream.tcc
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{ostream}
*/
//
// ISO C++ 14882: 27.6.2 Output streams
//
#ifndef _OSTREAM_TCC
#define _OSTREAM_TCC 1
#pragma GCC system_header
#include <bits/cxxabi_forced.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>::sentry::
sentry(basic_ostream<_CharT, _Traits>& __os)
: _M_ok(false), _M_os(__os)
{
// XXX MT
if (__os.tie() && __os.good())
__os.tie()->flush();
if (__os.good())
_M_ok = true;
else
__os.setstate(ios_base::failbit);
}
template<typename _CharT, typename _Traits>
template<typename _ValueT>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
_M_insert(_ValueT __v)
{
sentry __cerb(*this);
if (__cerb)
{
ios_base::iostate __err = ios_base::goodbit;
__try
{
const __num_put_type& __np = __check_facet(this->_M_num_put);
if (__np.put(*this, *this, this->fill(), __v).failed())
__err |= ios_base::badbit;
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::badbit); }
if (__err)
this->setstate(__err);
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
operator<<(short __n)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 117. basic_ostream uses nonexistent num_put member functions.
const ios_base::fmtflags __fmt = this->flags() & ios_base::basefield;
if (__fmt == ios_base::oct || __fmt == ios_base::hex)
return _M_insert(static_cast<long>(static_cast<unsigned short>(__n)));
else
return _M_insert(static_cast<long>(__n));
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
operator<<(int __n)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 117. basic_ostream uses nonexistent num_put member functions.
const ios_base::fmtflags __fmt = this->flags() & ios_base::basefield;
if (__fmt == ios_base::oct || __fmt == ios_base::hex)
return _M_insert(static_cast<long>(static_cast<unsigned int>(__n)));
else
return _M_insert(static_cast<long>(__n));
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
operator<<(__streambuf_type* __sbin)
{
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this);
if (__cerb && __sbin)
{
__try
{
if (!__copy_streambufs(__sbin, this->rdbuf()))
__err |= ios_base::failbit;
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::failbit); }
}
else if (!__sbin)
__err |= ios_base::badbit;
if (__err)
this->setstate(__err);
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
put(char_type __c)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 60. What is a formatted input function?
// basic_ostream::put(char_type) is an unformatted output function.
// DR 63. Exception-handling policy for unformatted output.
// Unformatted output functions should catch exceptions thrown
// from streambuf members.
sentry __cerb(*this);
if (__cerb)
{
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __put = this->rdbuf()->sputc(__c);
if (traits_type::eq_int_type(__put, traits_type::eof()))
__err |= ios_base::badbit;
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::badbit); }
if (__err)
this->setstate(__err);
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
write(const _CharT* __s, streamsize __n)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 60. What is a formatted input function?
// basic_ostream::write(const char_type*, streamsize) is an
// unformatted output function.
// DR 63. Exception-handling policy for unformatted output.
// Unformatted output functions should catch exceptions thrown
// from streambuf members.
sentry __cerb(*this);
if (__cerb)
{
__try
{ _M_write(__s, __n); }
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::badbit); }
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
flush()
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 60. What is a formatted input function?
// basic_ostream::flush() is *not* an unformatted output function.
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (this->rdbuf() && this->rdbuf()->pubsync() == -1)
__err |= ios_base::badbit;
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::badbit); }
if (__err)
this->setstate(__err);
return *this;
}
template<typename _CharT, typename _Traits>
typename basic_ostream<_CharT, _Traits>::pos_type
basic_ostream<_CharT, _Traits>::
tellp()
{
pos_type __ret = pos_type(-1);
__try
{
if (!this->fail())
__ret = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::out);
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::badbit); }
return __ret;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
seekp(pos_type __pos)
{
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (!this->fail())
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 136. seekp, seekg setting wrong streams?
const pos_type __p = this->rdbuf()->pubseekpos(__pos,
ios_base::out);
// 129. Need error indication from seekp() and seekg()
if (__p == pos_type(off_type(-1)))
__err |= ios_base::failbit;
}
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::badbit); }
if (__err)
this->setstate(__err);
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
seekp(off_type __off, ios_base::seekdir __dir)
{
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (!this->fail())
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 136. seekp, seekg setting wrong streams?
const pos_type __p = this->rdbuf()->pubseekoff(__off, __dir,
ios_base::out);
// 129. Need error indication from seekp() and seekg()
if (__p == pos_type(off_type(-1)))
__err |= ios_base::failbit;
}
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ this->_M_setstate(ios_base::badbit); }
if (__err)
this->setstate(__err);
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
{
if (!__s)
__out.setstate(ios_base::badbit);
else
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 167. Improper use of traits_type::length()
const size_t __clen = char_traits<char>::length(__s);
__try
{
struct __ptr_guard
{
_CharT *__p;
__ptr_guard (_CharT *__ip): __p(__ip) { }
~__ptr_guard() { delete[] __p; }
_CharT* __get() { return __p; }
} __pg (new _CharT[__clen]);
_CharT *__ws = __pg.__get();
for (size_t __i = 0; __i < __clen; ++__i)
__ws[__i] = __out.widen(__s[__i]);
__ostream_insert(__out, __ws, __clen);
}
__catch(__cxxabiv1::__forced_unwind&)
{
__out._M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
{ __out._M_setstate(ios_base::badbit); }
}
return __out;
}
// Inhibit implicit instantiations for required instantiations,
// which are defined via explicit instantiations elsewhere.
#if _GLIBCXX_EXTERN_TEMPLATE
extern template class basic_ostream<char>;
extern template ostream& endl(ostream&);
extern template ostream& ends(ostream&);
extern template ostream& flush(ostream&);
extern template ostream& operator<<(ostream&, char);
extern template ostream& operator<<(ostream&, unsigned char);
extern template ostream& operator<<(ostream&, signed char);
extern template ostream& operator<<(ostream&, const char*);
extern template ostream& operator<<(ostream&, const unsigned char*);
extern template ostream& operator<<(ostream&, const signed char*);
extern template ostream& ostream::_M_insert(long);
extern template ostream& ostream::_M_insert(unsigned long);
extern template ostream& ostream::_M_insert(bool);
#ifdef _GLIBCXX_USE_LONG_LONG
extern template ostream& ostream::_M_insert(long long);
extern template ostream& ostream::_M_insert(unsigned long long);
#endif
extern template ostream& ostream::_M_insert(double);
extern template ostream& ostream::_M_insert(long double);
extern template ostream& ostream::_M_insert(const void*);
#ifdef _GLIBCXX_USE_WCHAR_T
extern template class basic_ostream<wchar_t>;
extern template wostream& endl(wostream&);
extern template wostream& ends(wostream&);
extern template wostream& flush(wostream&);
extern template wostream& operator<<(wostream&, wchar_t);
extern template wostream& operator<<(wostream&, char);
extern template wostream& operator<<(wostream&, const wchar_t*);
extern template wostream& operator<<(wostream&, const char*);
extern template wostream& wostream::_M_insert(long);
extern template wostream& wostream::_M_insert(unsigned long);
extern template wostream& wostream::_M_insert(bool);
#ifdef _GLIBCXX_USE_LONG_LONG
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
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif
std::basic_ios::setstate
void setstate(iostate __state)
Sets additional flags in the error state.
Definition: basic_ios.h:157
std::basic_ios::rdbuf
basic_streambuf< _CharT, _Traits > * rdbuf() const
Accessing the underlying buffer.
Definition: basic_ios.h:321
std::basic_ostream
Template class basic_ostream.
Definition: iosfwd:86
std::ios_base::hex
static const fmtflags hex
Converts integer input or generates integer output in hexadecimal base.
Definition: ios_base.h:335
std::basic_ostream::flush
__ostream_type & flush()
Synchronizing the stream buffer.
Definition: ostream.tcc:211
std::basic_ios< char, _Traits >::int_type
_Traits::int_type int_type
Definition: basic_ios.h:77
std::ios_base::goodbit
static const iostate goodbit
Indicates all is well.
Definition: ios_base.h:413
std::basic_ostream::_M_write
void _M_write(const char_type *__s, streamsize __n)
Core write functionality, without sentry.
Definition: ostream:311
std::basic_ostream::sentry::sentry
sentry(basic_ostream< _CharT, _Traits > &__os)
The constructor performs preparatory work.
Definition: ostream.tcc:47
std::basic_ostream::seekp
__ostream_type & seekp(pos_type)
Changing the current write position.
Definition: ostream.tcc:258
std::basic_ios::tie
basic_ostream< _CharT, _Traits > * tie() const
Fetches the current tied stream.
Definition: basic_ios.h:295
std::basic_ostream::sentry
Performs setup work for output streams.
Definition: ostream:426
std::basic_ostream::operator<<
__ostream_type & operator<<(__ostream_type &(*__pf)(__ostream_type &))
Interface for manipulators.
Definition: ostream:108
std::num_put
Primary class template num_put.This facet encapsulates the code to convert a number to a string...
Definition: locale_facets.h:2289
std::streamsize
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
Definition: postypes.h:98
std::basic_ostream::put
__ostream_type & put(char_type __c)
Simple insertion.
Definition: ostream.tcc:149
std::ends
basic_ostream< _CharT, _Traits > & ends(basic_ostream< _CharT, _Traits > &__os)
Write a null character into the output sequence.
Definition: ostream:602
std::ios_base::out
static const openmode out
Open for output. Default for ofstream and fstream.
Definition: ios_base.h:446
std::basic_streambuf< char, _Traits >
std::endl
basic_ostream< _CharT, _Traits > & endl(basic_ostream< _CharT, _Traits > &__os)
Write a newline and flush the stream.
Definition: ostream:590
std::ios_base::failbit
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
Definition: ios_base.h:410
std::basic_ios< char, _Traits >::pos_type
_Traits::pos_type pos_type
Definition: basic_ios.h:78
cxxabi_forced.h
std::ios_base::badbit
static const iostate badbit
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error fro...
Definition: ios_base.h:402
std::num_put::put
iter_type put(iter_type __s, ios_base &__io, char_type __fill, bool __v) const
Numeric formatting.
Definition: locale_facets.h:2328
std::basic_ostream::write
__ostream_type & write(const char_type *__s, streamsize __n)
Character string insertion.
Definition: ostream.tcc:183
std::ios_base::basefield
static const fmtflags basefield
A mask of dec|oct|hex. Useful for the 2-arg form of setf.
Definition: ios_base.h:381
std::ios_base::oct
static const fmtflags oct
Converts integer input or generates integer output in octal base.
Definition: ios_base.h:347
std
ISO C++ entities toplevel namespace is std.
__cxxabiv1::__forced_unwind
Thrown as part of forced unwinding.A magic placeholder class that can be caught by reference to recog...
Definition: cxxabi_forced.h:48
std::ios_base::cur
static const seekdir cur
Request a seek relative to the current position within the sequence.
Definition: ios_base.h:467
std::basic_ios::fail
bool fail() const
Fast error checking.
Definition: basic_ios.h:201
std::basic_ostream::tellp
pos_type tellp()
Getting the current write position.
Definition: ostream.tcc:237
std::basic_ios< char, _Traits >::off_type
_Traits::off_type off_type
Definition: basic_ios.h:79
std::ios_base::flags
fmtflags flags() const
Access to format flags.
Definition: ios_base.h:619
std::basic_ios::good
bool good() const
Fast error checking.
Definition: basic_ios.h:180
std::basic_ios< char, _Traits >::char_type
char char_type
Definition: basic_ios.h:76
std::char_traits
Basis for explicit traits specializations.
Definition: char_traits.h:227