+2006-10-13 Paolo Carlini <pcarlini@suse.de>
+
+ PR libstdc++/28277 (partial: ostream bits 2)
+ * include/std/std_ostream.h (basic_ostream<>::_M_insert(const
+ char_type*, streamsize)): New.
+ (basic_ostream<>::_M_write(char_type, streamsize)): Likewise.
+ (operator<<(basic_ostream<>&, _CharT), operator<<(basic_ostream<>&,
+ char), operator<<(basic_ostream<>&, const _CharT*),
+ operator<<(basic_ostream<>&, const char*)): Use the latter.
+ * include/bits/ostream.tcc (basic_ostream<>::_M_insert(const
+ char_type*, streamsize)): Define.
+ (operator<<(basic_ostream<>&, const char*)): Use the latter.
+ (operator<<(basic_ostream<>&, _CharT), operator<<(basic_ostream<>&,
+ char), operator<<(basic_ostream<>&, const _CharT*),
+ operator<<(basic_ostream<>&, const char*),
+ operator<<(basic_ostream<>&, const basic_string<>&)): Remove.
+ * include/bits/basic_string.h (operator<<(basic_ostream<>&,
+ const basic_string<>&)): Use the latter, implement DR 586.
+ * config/abi/pre/gnu.ver: Adjust, export the new _M_insert.
+ * docs/html/ext/howto.html: Add an entry for DR 586.
+ * testsuite/21_strings/basic_string/inserters_extractors/char/
+ 28277.cc: New.
+ * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/
+ 28277.cc: Likewise.
+ * testsuite/27_io/basic_ostream/inserters_character/char/
+ 28277-3.cc: Likewise.
+ * testsuite/27_io/basic_ostream/inserters_character/char/
+ 28277-4.cc: Likewise.
+ * testsuite/27_io/basic_ostream/inserters_character/wchar_t/
+ 28277-2.cc: Likewise.
+ * testsuite/27_io/basic_ostream/inserters_character/wchar_t/
+ 28277-3.cc: Likewise.
+ * testsuite/27_io/basic_ostream/inserters_character/wchar_t/
+ 28277-4.cc: Likewise.
+
2006-10-11 Paolo Carlini <pcarlini@suse.de>
* docs/html/ext/lwg-active.html, lwg-defects.html: Import Revision 44.
_ZNSoC*;
_ZNSoD*;
_ZNKSo6sentrycvbEv;
- _ZNSo8_M_write*;
+ _ZNSo8_M_writeEPKc[il];
_ZNSo[0-9][a-z]*;
_ZNSolsE*[^g];
_ZNSt13basic_ostreamIwSt11char_traitsIwEE5tellpEv;
_ZNSt13basic_ostreamIwSt11char_traitsIwEE5writeEPKw*;
_ZNSt13basic_ostreamIwSt11char_traitsIwEE6sentry*;
- _ZNSt13basic_ostreamIwSt11char_traitsIwEE8_M_write*;
+ _ZNSt13basic_ostreamIwSt11char_traitsIwEE8_M_writeEPKw[il];
_ZNSt13basic_ostreamIwSt11char_traitsIwEElsE*[^g];
# std::ostream operators and inserters
_ZNSt13basic_istreamIwSt11char_traitsIwEE10_M_extractI[^g]*;
_ZSt21__copy_streambufs_eofI[cw]St11char_traitsI[cw]EE[il]PSt15basic_streambuf*;
+
+ _ZNSo9_M_insertEPKc[il];
+ _ZNSt13basic_ostreamIwSt11char_traitsIwEE9_M_insertEPKw[il];
} GLIBCXX_3.4.8;
<dd>In case of input_iterator/output_iterator rely on Assignability of
input_iterator' value_type.
</dd>
+
+ <dt><a href="lwg-active.html#586">586</a>:
+ <em>string inserter not a formatted function</em>
+ </dt>
+ <dd>Change it to be a formatted output function (i.e. catch exceptions).
+ </dd>
<!--
<dt><a href="lwg-defects.html#"></a>:
<em></em>
template<typename _CharT, typename _Traits, typename _Alloc>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os,
- const basic_string<_CharT, _Traits, _Alloc>& __str);
+ const basic_string<_CharT, _Traits, _Alloc>& __str)
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 586. string inserter not a formatted function
+ return __os._M_insert(__str.data(), __str.size());
+ }
/**
* @brief Read a line from stream into a string.
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
- {
- const streamsize __w = __out.width();
- streamsize __len = 1;
- _CharT* __cs = &__c;
- if (__w > __len)
- {
- __cs = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
- * __w));
- __pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __cs,
- &__c, __w, __len, false);
- __len = __w;
- }
- __out._M_write(__cs, __len);
- __out.width(0);
- }
- catch(...)
- { __out._M_setstate(ios_base::badbit); }
- }
- return __out;
- }
-
- // Specializations.
- template <class _Traits>
- basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, char __c)
+ basic_ostream<_CharT, _Traits>::
+ _M_insert(const char_type* __s, streamsize __n)
{
- typedef basic_ostream<char, _Traits> __ostream_type;
- typename __ostream_type::sentry __cerb(__out);
+ sentry __cerb(*this);
if (__cerb)
{
try
{
- const streamsize __w = __out.width();
- streamsize __len = 1;
- char* __cs = &__c;
- if (__w > __len)
+ const streamsize __w = this->width();
+ if (__w > __n)
{
- __cs = static_cast<char*>(__builtin_alloca(__w));
- __pad<char, _Traits>::_S_pad(__out, __out.fill(), __cs,
- &__c, __w, __len, false);
- __len = __w;
+ const bool __left = ((this->flags() & ios_base::adjustfield)
+ == ios_base::left);
+ if (!__left)
+ _M_write(this->fill(), __w - __n);
+ if (this->good())
+ _M_write(__s, __n);
+ if (__left && this->good())
+ _M_write(this->fill(), __w - __n);
}
- __out._M_write(__cs, __len);
- __out.width(0);
+ else
+ _M_write(__s, __n);
+ this->width(0);
}
catch(...)
- { __out._M_setstate(ios_base::badbit); }
- }
- 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
- {
- const streamsize __w = __out.width();
- streamsize __len = static_cast<streamsize>(_Traits::length(__s));
- if (__w > __len)
- {
- _CharT* __cs = (static_cast<
- _CharT*>(__builtin_alloca(sizeof(_CharT)
- * __w)));
- __pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __cs,
- __s, __w, __len, false);
- __s = __cs;
- __len = __w;
- }
- __out._M_write(__s, __len);
- __out.width(0);
- }
- catch(...)
- { __out._M_setstate(ios_base::badbit); }
+ { this->_M_setstate(ios_base::badbit); }
}
- else if (!__s)
- __out.setstate(ios_base::badbit);
- return __out;
+ return *this;
}
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;
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 167. Improper use of traits_type::length()
- // Note that this is only in 'Review' status.
- typedef char_traits<char> __traits_type;
- typename __ostream_type::sentry __cerb(__out);
- if (__cerb && __s)
+ if (!__s)
+ __out.setstate(ios_base::badbit);
+ else
{
- _CharT* __ws = 0;
try
{
- const size_t __clen = __traits_type::length(__s);
- __ws = new _CharT[__clen];
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 167. Improper use of traits_type::length()
+ const size_t __clen = char_traits<char>::length(__s);
+ _CharT* __ws = new _CharT[__clen];
for (size_t __i = 0; __i < __clen; ++__i)
__ws[__i] = __out.widen(__s[__i]);
- _CharT* __str = __ws;
-
- const streamsize __w = __out.width();
- streamsize __len = static_cast<streamsize>(__clen);
- if (__w > __len)
- {
- _CharT* __cs = (static_cast<
- _CharT*>(__builtin_alloca(sizeof(_CharT)
- * __w)));
- __pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __cs,
- __ws, __w, __len, false);
- __str = __cs;
- __len = __w;
- }
- __out._M_write(__str, __len);
- __out.width(0);
-
+ __out._M_insert(__ws, __clen);
delete [] __ws;
}
catch(...)
- {
- delete [] __ws;
- __out._M_setstate(ios_base::badbit);
- }
- }
- 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
- {
- const streamsize __w = __out.width();
- streamsize __len = static_cast<streamsize>(_Traits::length(__s));
- if (__w > __len)
- {
- char* __cs = static_cast<char*>(__builtin_alloca(__w));
- __pad<char, _Traits>::_S_pad(__out, __out.fill(), __cs,
- __s, __w, __len, false);
- __s = __cs;
- __len = __w;
- }
- __out._M_write(__s, __len);
- __out.width(0);
- }
- catch(...)
{ __out._M_setstate(ios_base::badbit); }
}
- 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 streamsize __w = __out.width();
- streamsize __len = static_cast<streamsize>(__str.size());
- const _CharT* __s = __str.data();
-
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 25. String operator<< uses width() value wrong
- if (__w > __len)
- {
- _CharT* __cs = (static_cast<
- _CharT*>(__builtin_alloca(sizeof(_CharT) * __w)));
- __pad<_CharT, _Traits>::_S_pad(__out, __out.fill(), __cs, __s,
- __w, __len, false);
- __s = __cs;
- __len = __w;
- }
- __out._M_write(__s, __len);
- __out.width(0);
- }
return __out;
}
friend basic_ostream<_CharT2, _Traits2>&
operator<<(basic_ostream<_CharT2, _Traits2>&, const char*);
+ template<typename _CharT2, typename _Traits2, typename _Alloc>
+ friend basic_ostream<_CharT2, _Traits2>&
+ operator<<(basic_ostream<_CharT2, _Traits2>&,
+ const basic_string<_CharT2, _Traits2, _Alloc>&);
+
// [27.6.2.2] constructor/destructor
/**
* @brief Base constructor.
void
_M_write(const char_type* __s, streamsize __n)
{
- streamsize __put = this->rdbuf()->sputn(__s, __n);
+ const streamsize __put = this->rdbuf()->sputn(__s, __n);
if (__put != __n)
this->setstate(ios_base::badbit);
}
+ void
+ _M_write(char_type __c, streamsize __n)
+ {
+ for (; __n > 0; --__n)
+ {
+ const int_type __put = this->rdbuf()->sputc(__c);
+ if (traits_type::eq_int_type(__put, traits_type::eof()))
+ {
+ this->setstate(ios_base::badbit);
+ break;
+ }
+ }
+ }
+
/**
* @brief Character string insertion.
* @param s The array to insert.
template<typename _ValueT>
__ostream_type&
_M_insert(_ValueT __v);
+
+ __ostream_type&
+ _M_insert(const char_type* __s, streamsize __n);
};
/**
*/
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
- operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c);
+ operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
+ { return __out._M_insert(&__c, 1); }
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
// Specialization
template <class _Traits>
basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, char __c);
+ operator<<(basic_ostream<char, _Traits>& __out, char __c)
+ { return __out._M_insert(&__c, 1); }
// Signed and unsigned
template<class _Traits>
*/
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits>&
- operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s);
+ operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
+ {
+ if (!__s)
+ __out.setstate(ios_base::badbit);
+ else
+ __out._M_insert(__s, static_cast<streamsize>(_Traits::length(__s)));
+ return __out;
+ }
template<typename _CharT, typename _Traits>
basic_ostream<_CharT, _Traits> &
// Partial specializationss
template<class _Traits>
basic_ostream<char, _Traits>&
- operator<<(basic_ostream<char, _Traits>& __out, const char* __s);
-
+ operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
+ {
+ if (!__s)
+ __out.setstate(ios_base::badbit);
+ else
+ __out._M_insert(__s, static_cast<streamsize>(_Traits::length(__s)));
+ return __out;
+ }
+
// Signed and unsigned
template<class _Traits>
basic_ostream<char, _Traits>&
--- /dev/null
+// 2006-10-12 Paolo Carlini <pcarlini@suse.de>
+
+// Copyright (C) 2006 Free Software Foundation
+//
+// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 21.3.7.9 inserters and extractors
+
+#include <ostream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/28277
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ ostringstream oss_01;
+ const string str_01(50, 'a');
+
+ oss_01.width(20000000);
+ const streamsize width = oss_01.width();
+
+ oss_01 << str_01;
+
+ VERIFY( oss_01.good() );
+ VERIFY( oss_01.str().size() == width );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2006-10-12 Paolo Carlini <pcarlini@suse.de>
+
+// Copyright (C) 2006 Free Software Foundation
+//
+// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 21.3.7.9 inserters and extractors
+
+#include <ostream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/28277
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ wostringstream oss_01;
+ const wstring str_01(50, L'a');
+
+ oss_01.width(5000000);
+ const streamsize width = oss_01.width();
+
+ oss_01 << str_01;
+
+ VERIFY( oss_01.good() );
+ VERIFY( oss_01.str().size() == width );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2006-10-12 Paolo Carlini <pcarlini@suse.de>
+
+// Copyright (C) 2006 Free Software Foundation
+//
+// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 27.6.2.5.4 basic_ostream character inserters
+
+#include <ostream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/28277
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ ostringstream oss_01;
+
+ oss_01.width(20000000);
+ const streamsize width = oss_01.width();
+
+ oss_01 << 'a';
+
+ VERIFY( oss_01.good() );
+ VERIFY( oss_01.str().size() == width );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2006-10-12 Paolo Carlini <pcarlini@suse.de>
+
+// Copyright (C) 2006 Free Software Foundation
+//
+// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 27.6.2.5.4 basic_ostream character inserters
+
+#include <ostream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/28277
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ ostringstream oss_01;
+ const string str_01(50, 'a');
+
+ oss_01.width(20000000);
+ const streamsize width = oss_01.width();
+
+ oss_01 << str_01.c_str();
+
+ VERIFY( oss_01.good() );
+ VERIFY( oss_01.str().size() == width );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2006-10-12 Paolo Carlini <pcarlini@suse.de>
+
+// Copyright (C) 2006 Free Software Foundation
+//
+// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 27.6.2.5.4 basic_ostream character inserters
+
+#include <ostream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/28277
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ wostringstream oss_01;
+ const string str_01(50, 'a');
+
+ oss_01.width(5000000);
+ const streamsize width = oss_01.width();
+
+ oss_01 << str_01.c_str();
+
+ VERIFY( oss_01.good() );
+ VERIFY( oss_01.str().size() == width );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2006-10-12 Paolo Carlini <pcarlini@suse.de>
+
+// Copyright (C) 2006 Free Software Foundation
+//
+// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 27.6.2.5.4 basic_ostream character inserters
+
+#include <ostream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/28277
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ wostringstream oss_01;
+
+ oss_01.width(5000000);
+ const streamsize width = oss_01.width();
+
+ oss_01 << L'a';
+
+ VERIFY( oss_01.good() );
+ VERIFY( oss_01.str().size() == width );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2006-10-12 Paolo Carlini <pcarlini@suse.de>
+
+// Copyright (C) 2006 Free Software Foundation
+//
+// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// 27.6.2.5.4 basic_ostream character inserters
+
+#include <ostream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/28277
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ wostringstream oss_01;
+ const wstring str_01(50, L'a');
+
+ oss_01.width(5000000);
+ const streamsize width = oss_01.width();
+
+ oss_01 << str_01.c_str();
+
+ VERIFY( oss_01.good() );
+ VERIFY( oss_01.str().size() == width );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
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