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gcc/libstdc++-v3/include/bits/ostream.tcc
Benjamin Kosnik 06e7ca50ab re PR libstdc++/9555 (ostream inserters fail to set badbit on exception) 
2003-04-17  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/9555
	* include/bits/ostream.tcc: Catch all exceptions for formatted
	output, instead of std::exception and derivatives.
	* include/bits/istream.tcc: Same.
	* testsuite/27_io/basic_ostream/inserters_arithmetic/char/9555-oa.cc:
	* testsuite/27_io/basic_ostream/inserters_character/char/9555-oc.cc:
	* testsuite/27_io/basic_ostream/inserters_other/char/9555-oo.cc:
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/9555-ia.cc:
	* testsuite/27_io/basic_istream/extractors_character/char/9555-ic.cc:
	* testsuite/27_io/basic_istream/extractors_other/char/9555-io.cc:
	New.

From-SVN: r65770
2003-04-18 03:46:44 +00:00

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// ostream classes -*- C++ -*-
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
// 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 2, 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.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
//
// ISO C++ 14882: 27.6.2 Output streams
//
#pragma GCC system_header
#include <locale>
namespace std
{
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>::sentry::
sentry(basic_ostream<_CharT,_Traits>& __os)
: _M_os(__os)
{
// XXX MT
if (__os.tie() && __os.good())
__os.tie()->flush();
if (__os.good())
_M_ok = true;
else
{
_M_ok = false;
__os.setstate(ios_base::failbit);
}
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
operator<<(__ostream_type& (*__pf)(__ostream_type&))
{
sentry __cerb(*this);
if (__cerb)
{
try
{ __pf(*this); }
catch(...)
{
// 27.6.2.5.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
operator<<(__ios_type& (*__pf)(__ios_type&))
{
sentry __cerb(*this);
if (__cerb)
{
try
{ __pf(*this); }
catch(...)
{
// 27.6.2.5.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
operator<<(ios_base& (*__pf)(ios_base&))
{
sentry __cerb(*this);
if (__cerb)
{
try
{ __pf(*this); }
catch(...)
{
// 27.6.2.5.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(__streambuf_type* __sbin)
{
sentry __cerb(*this);
if (__cerb && __sbin)
{
try
{
if (!__copy_streambufs(*this, __sbin, this->rdbuf()))
this->setstate(ios_base::failbit);
}
catch(...)
{
// 27.6.2.5.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
else if (!__sbin)
this->setstate(ios_base::badbit);
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(bool __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
if (_M_check_facet(this->_M_fnumput))
if (this->_M_fnumput->put(*this, *this,
this->fill(), __n).failed())
this->setstate(ios_base::badbit);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(long __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
char_type __c = this->fill();
ios_base::fmtflags __fmt = this->flags() & ios_base::basefield;
if (_M_check_facet(this->_M_fnumput))
{
bool __b = false;
if ((__fmt & ios_base::oct) || (__fmt & ios_base::hex))
{
unsigned long __l = static_cast<unsigned long>(__n);
__b = this->_M_fnumput->put(*this, *this,
__c, __l).failed();
}
else
__b = this->_M_fnumput->put(*this, *this,
__c, __n).failed();
if (__b)
this->setstate(ios_base::badbit);
}
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(unsigned long __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
if (_M_check_facet(this->_M_fnumput))
if (this->_M_fnumput->put(*this, *this,
this->fill(), __n).failed())
this->setstate(ios_base::badbit);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
#ifdef _GLIBCPP_USE_LONG_LONG
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(long long __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
char_type __c = this->fill();
ios_base::fmtflags __fmt = this->flags() & ios_base::basefield;
if (_M_check_facet(this->_M_fnumput))
{
bool __b = false;
if ((__fmt & ios_base::oct) || (__fmt & ios_base::hex))
{
unsigned long long __l;
__l = static_cast<unsigned long long>(__n);
__b = this->_M_fnumput->put(*this, *this,
__c, __l).failed();
}
else
__b = this->_M_fnumput->put(*this, *this,
__c, __n).failed();
if (__b)
this->setstate(ios_base::badbit);
}
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(unsigned long long __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
if (_M_check_facet(this->_M_fnumput))
if (this->_M_fnumput->put(*this, *this,
this->fill(), __n).failed())
this->setstate(ios_base::badbit);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
#endif
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(double __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
if (_M_check_facet(this->_M_fnumput))
if (this->_M_fnumput->put(*this, *this,
this->fill(), __n).failed())
this->setstate(ios_base::badbit);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(long double __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
if (_M_check_facet(this->_M_fnumput))
if (this->_M_fnumput->put(*this, *this,
this->fill(), __n).failed())
this->setstate(ios_base::badbit);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(const void* __n)
{
sentry __cerb(*this);
if (__cerb)
{
try
{
if (_M_check_facet(this->_M_fnumput))
if (this->_M_fnumput->put(*this, *this,
this->fill(), __n).failed())
this->setstate(ios_base::badbit);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
this->_M_setstate(ios_base::badbit);
if ((this->exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::put(char_type __c)
{
sentry __cerb(*this);
if (__cerb)
{
int_type __put = rdbuf()->sputc(__c);
if (traits_type::eq_int_type(__put, traits_type::eof()))
this->setstate(ios_base::badbit);
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::write(const _CharT* __s, streamsize __n)
{
sentry __cerb(*this);
if (__cerb)
_M_write(__s, __n);
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::flush()
{
sentry __cerb(*this);
if (__cerb)
{
if (this->rdbuf() && this->rdbuf()->pubsync() == -1)
this->setstate(ios_base::badbit);
}
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);
if (!this->fail())
__ret = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::out);
return __ret;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::seekp(pos_type __pos)
{
if (!this->fail())
{
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
// 136. seekp, seekg setting wrong streams?
pos_type __err = this->rdbuf()->pubseekpos(__pos, ios_base::out);
// 129. Need error indication from seekp() and seekg()
if (__err == pos_type(off_type(-1)))
this->setstate(ios_base::failbit);
#endif
}
return *this;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::
seekp(off_type __off, ios_base::seekdir __d)
{
if (!this->fail())
{
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
// 136. seekp, seekg setting wrong streams?
pos_type __err = this->rdbuf()->pubseekoff(__off, __d,
ios_base::out);
// 129. Need error indication from seekp() and seekg()
if (__err == pos_type(off_type(-1)))
this->setstate(ios_base::failbit);
#endif
}
return *this;
}
// 27.6.2.5.4 Character inserters.
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
{
typedef basic_ostream<_CharT, _Traits> __ostream_type;
typename __ostream_type::sentry __cerb(__out);
if (__cerb)
{
try
{
streamsize __w = __out.width();
_CharT* __pads = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * (__w + 1)));
__pads[0] = __c;
streamsize __len = 1;
if (__w > __len)
{
__pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __pads,
&__c, __w, __len, false);
__len = __w;
}
__out._M_write(__pads, __len);
__out.width(0);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
__out._M_setstate(ios_base::badbit);
if ((__out.exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return __out;
}
// Specializations.
template <class _Traits>
basic_ostream<char, _Traits>&
operator<<(basic_ostream<char, _Traits>& __out, char __c)
{
typedef basic_ostream<char, _Traits> __ostream_type;
typename __ostream_type::sentry __cerb(__out);
if (__cerb)
{
try
{
streamsize __w = __out.width();
char* __pads = static_cast<char*>(__builtin_alloca(__w + 1));
__pads[0] = __c;
streamsize __len = 1;
if (__w > __len)
{
__pad<char, _Traits>::_S_pad(__out, __out.fill(), __pads,
&__c, __w, __len, false);
__len = __w;
}
__out._M_write(__pads, __len);
__out.width(0);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
__out._M_setstate(ios_base::badbit);
if ((__out.exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
return __out;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
{
typedef basic_ostream<_CharT, _Traits> __ostream_type;
typename __ostream_type::sentry __cerb(__out);
if (__cerb && __s)
{
try
{
streamsize __w = __out.width();
_CharT* __pads = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __w));
streamsize __len = static_cast<streamsize>(_Traits::length(__s));
if (__w > __len)
{
__pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __pads,
__s, __w, __len, false);
__s = __pads;
__len = __w;
}
__out._M_write(__s, __len);
__out.width(0);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
__out._M_setstate(ios_base::badbit);
if ((__out.exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
else if (!__s)
__out.setstate(ios_base::badbit);
return __out;
}
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
{
typedef basic_ostream<_CharT, _Traits> __ostream_type;
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
// 167. Improper use of traits_type::length()
// Note that this is only in 'Review' status.
typedef char_traits<char> __traits_type;
#endif
typename __ostream_type::sentry __cerb(__out);
if (__cerb && __s)
{
size_t __clen = __traits_type::length(__s);
_CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * (__clen + 1)));
for (size_t __i = 0; __i < __clen; ++__i)
__ws[__i] = __out.widen(__s[__i]);
_CharT* __str = __ws;
try
{
streamsize __len = static_cast<streamsize>(__clen);
streamsize __w = __out.width();
_CharT* __pads = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __w));
if (__w > __len)
{
__pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __pads,
__ws, __w, __len, false);
__str = __pads;
__len = __w;
}
__out._M_write(__str, __len);
__out.width(0);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
__out._M_setstate(ios_base::badbit);
if ((__out.exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
else if (!__s)
__out.setstate(ios_base::badbit);
return __out;
}
// Partial specializations.
template<class _Traits>
basic_ostream<char, _Traits>&
operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
{
typedef basic_ostream<char, _Traits> __ostream_type;
typename __ostream_type::sentry __cerb(__out);
if (__cerb && __s)
{
try
{
streamsize __w = __out.width();
char* __pads = static_cast<char*>(__builtin_alloca(__w));
streamsize __len = static_cast<streamsize>(_Traits::length(__s));
if (__w > __len)
{
__pad<char, _Traits>::_S_pad(__out, __out.fill(), __pads,
__s, __w, __len, false);
__s = __pads;
__len = __w;
}
__out._M_write(__s, __len);
__out.width(0);
}
catch(...)
{
// 27.6.1.2.1 Common requirements.
// Turn this on without causing an ios::failure to be thrown.
__out._M_setstate(ios_base::badbit);
if ((__out.exceptions() & ios_base::badbit) != 0)
__throw_exception_again;
}
}
else if (!__s)
__out.setstate(ios_base::badbit);
return __out;
}
// 21.3.7.9 basic_string::operator<<
template<typename _CharT, typename _Traits, typename _Alloc>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __out,
const basic_string<_CharT, _Traits, _Alloc>& __str)
{
typedef basic_ostream<_CharT, _Traits> __ostream_type;
typename __ostream_type::sentry __cerb(__out);
if (__cerb)
{
const _CharT* __s = __str.data();
streamsize __w = __out.width();
_CharT* __pads = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __w));
streamsize __len = static_cast<streamsize>(__str.size());
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
// 25. String operator<< uses width() value wrong
#endif
if (__w > __len)
{
__pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __pads, __s,
__w, __len, false);
__s = __pads;
__len = __w;
}
__out._M_write(__s, __len);
__out.width(0);
}
return __out;
}
// Inhibit implicit instantiations for required instantiations,
// which are defined via explicit instantiations elsewhere.
// NB: This syntax is a GNU extension.
#if _GLIBCPP_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*);
#ifdef _GLIBCPP_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*);
#endif
#endif
} // namespace std
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