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istream.tcc (basic_istream<>::operator>>(short&), [...]): Implement resolution of DR 696, [Ready] in Frankfurt. 

2009-07-16  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/istream.tcc (basic_istream<>::operator>>(short&),
	basic_istream<>::operator>>(int&)): Implement resolution of DR 696,
	[Ready] in Frankfurt.
	* include/tr1_impl/regex (regex_traits<>::value): Adjust.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/dr696.cc:
	New.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/dr696.cc:
	Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/13.cc:
	Adjust.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/13.cc:
	Likewise.
	* doc/xml/manual/intro.xml: Add an entry for DR 696.

	* include/bits/istream.tcc: Minor clean-up to the initializers of the
	__err locals.
	* include/bits/ostream.tcc: Likewise.
	* src/compatibility.cc: Likewise.
	* src/istream.cc: Likewise.

From-SVN: r149704
This commit is contained in:
Paolo Carlini 2009-07-16 12:41:03 +00:00 committed by Paolo Carlini
parent ba0c638e22
commit 6f0398bb14
11 changed files with 340 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,25 @@
2009-07-16 Paolo Carlini <paolo.carlini@oracle.com>
* include/bits/istream.tcc (basic_istream<>::operator>>(short&),
basic_istream<>::operator>>(int&)): Implement resolution of DR 696,
[Ready] in Frankfurt.
* include/tr1_impl/regex (regex_traits<>::value): Adjust.
* testsuite/27_io/basic_istream/extractors_arithmetic/char/dr696.cc:
New.
* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/dr696.cc:
Likewise.
* testsuite/27_io/basic_istream/extractors_arithmetic/char/13.cc:
Adjust.
* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/13.cc:
Likewise.
* doc/xml/manual/intro.xml: Add an entry for DR 696.
* include/bits/istream.tcc: Minor clean-up to the initializers of the
__err locals.
* include/bits/ostream.tcc: Likewise.
* src/compatibility.cc: Likewise.
* src/istream.cc: Likewise.
2009-07-12 Paolo Carlini <paolo.carlini@oracle.com>
* include/std/type_traits (common_type): Remove workaround for

6
libstdc++-v3/doc/xml/manual/intro.xml
View File

@ -736,6 +736,12 @@ requirements of the license of GCC.
<listitem><para>Make the member functions table and classic_table public.
</para></listitem></varlistentry>
<varlistentry><term><ulink url="../ext/lwg-active.html#696">696</ulink>:
<emphasis>istream::operator&gt;&gt;(int&) broken</emphasis>
</term>
<listitem><para>Implement the straightforward resolution.
</para></listitem></varlistentry>
<varlistentry><term><ulink url="../ext/lwg-defects.html#761">761</ulink>:
<emphasis>unordered_map needs an at() member function</emphasis>
</term>

128
libstdc++-v3/include/bits/istream.tcc
View File

@ -46,7 +46,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
basic_istream<_CharT, _Traits>::sentry::
sentry(basic_istream<_CharT, _Traits>& __in, bool __noskip) : _M_ok(false)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
if (__in.good())
{
if (__in.tie())
@ -89,7 +89,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, false);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const __num_get_type& __ng = __check_facet(this->_M_num_get);
@ -97,7 +97,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
}
__catch(__cxxabiv1::__forced_unwind&)
{
this->_M_setstate(ios_base::badbit);
this->_M_setstate(ios_base::badbit);
__throw_exception_again;
}
__catch(...)
@ -115,19 +115,44 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 118. basic_istream uses nonexistent num_get member functions.
long __l;
_M_extract(__l);
if (!this->fail())
sentry __cerb(*this, false);
if (__cerb)
{
if (__gnu_cxx::__numeric_traits<short>::__min <= __l
&& __l <= __gnu_cxx::__numeric_traits<short>::__max)
__n = short(__l);
else
this->setstate(ios_base::failbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
long __l;
const __num_get_type& __ng = __check_facet(this->_M_num_get);
__ng.get(*this, 0, *this, __err, __l);
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 696. istream::operator>>(int&) broken.
if (__l < __gnu_cxx::__numeric_traits<short>::__min)
{
__err |= ios_base::failbit;
__n = __gnu_cxx::__numeric_traits<short>::__min;
}
else if (__l > __gnu_cxx::__numeric_traits<short>::__max)
{
__err |= ios_base::failbit;
__n = __gnu_cxx::__numeric_traits<short>::__max;
}
else
__n = short(__l);
}
__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_istream<_CharT, _Traits>&
basic_istream<_CharT, _Traits>::
@ -135,15 +160,40 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 118. basic_istream uses nonexistent num_get member functions.
long __l;
_M_extract(__l);
if (!this->fail())
sentry __cerb(*this, false);
if (__cerb)
{
if (__gnu_cxx::__numeric_traits<int>::__min <= __l
&& __l <= __gnu_cxx::__numeric_traits<int>::__max)
__n = int(__l);
else
this->setstate(ios_base::failbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
long __l;
const __num_get_type& __ng = __check_facet(this->_M_num_get);
__ng.get(*this, 0, *this, __err, __l);
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 696. istream::operator>>(int&) broken.
if (__l < __gnu_cxx::__numeric_traits<int>::__min)
{
__err |= ios_base::failbit;
__n = __gnu_cxx::__numeric_traits<int>::__min;
}
else if (__l > __gnu_cxx::__numeric_traits<int>::__max)
{
__err |= ios_base::failbit;
__n = __gnu_cxx::__numeric_traits<int>::__max;
}
else
__n = int(__l);
}
__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;
}
@ -153,7 +203,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
basic_istream<_CharT, _Traits>::
operator>>(__streambuf_type* __sbout)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, false);
if (__cerb && __sbout)
{
@ -188,7 +238,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
const int_type __eof = traits_type::eof();
int_type __c = __eof;
_M_gcount = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, true);
if (__cerb)
{
@ -222,7 +272,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
get(char_type& __c)
{
_M_gcount = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, true);
if (__cerb)
{
@ -259,7 +309,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
get(char_type* __s, streamsize __n, char_type __delim)
{
_M_gcount = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, true);
if (__cerb)
{
@ -306,7 +356,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
get(__streambuf_type& __sb, char_type __delim)
{
_M_gcount = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, true);
if (__cerb)
{
@ -350,7 +400,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
getline(char_type* __s, streamsize __n, char_type __delim)
{
_M_gcount = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, true);
if (__cerb)
{
@ -413,7 +463,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __eof = traits_type::eof();
@ -446,7 +496,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb && __n > 0)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __eof = traits_type::eof();
@ -508,7 +558,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb && __n > 0)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __eof = traits_type::eof();
@ -574,7 +624,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
__c = this->rdbuf()->sgetc();
@ -603,7 +653,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
_M_gcount = this->rdbuf()->sgetn(__s, __n);
@ -632,7 +682,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
// Cannot compare int_type with streamsize generically.
@ -666,7 +716,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __eof = traits_type::eof();
@ -699,7 +749,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __eof = traits_type::eof();
@ -732,7 +782,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
__streambuf_type* __sb = this->rdbuf();
@ -788,7 +838,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR60. Do not change _M_gcount.
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (!this->fail())
@ -821,7 +871,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
{
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR60. Do not change _M_gcount.
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (!this->fail())
@ -858,7 +908,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
typename __istream_type::sentry __cerb(__in, false);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const __int_type __cb = __in.rdbuf()->sbumpc();
@ -891,7 +941,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
typedef ctype<_CharT> __ctype_type;
streamsize __extracted = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
typename __istream_type::sentry __cerb(__in, false);
if (__cerb)
{

12
libstdc++-v3/include/bits/ostream.tcc
View File

@ -66,7 +66,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const __num_put_type& __np = __check_facet(this->_M_num_put);
@ -119,7 +119,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
basic_ostream<_CharT, _Traits>::
operator<<(__streambuf_type* __sbin)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this);
if (__cerb && __sbin)
{
@ -157,7 +157,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this);
if (__cerb)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __put = this->rdbuf()->sputc(__c);
@ -213,7 +213,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
// _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::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (this->rdbuf() && this->rdbuf()->pubsync() == -1)
@ -257,7 +257,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
basic_ostream<_CharT, _Traits>::
seekp(pos_type __pos)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (!this->fail())
@ -289,7 +289,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
basic_ostream<_CharT, _Traits>::
seekp(off_type __off, ios_base::seekdir __dir)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
if (!this->fail())

4
libstdc++-v3/include/tr1_impl/regex
View File

@ -688,13 +688,13 @@ namespace regex_constants
value(_Ch_type __ch, int __radix) const
{
std::basic_istringstream<_Ch_type> __is(string_type(1, __ch));
int __v = -1;
int __v;
if (__radix == 8)
__is >> std::oct;
else if (__radix == 16)
__is >> std::hex;
__is >> __v;
return __v;
return __is.fail() ? -1 : __v;
}
// [7.8] Class basic_regex

4
libstdc++-v3/src/compatibility.cc
View File

@ -64,7 +64,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb && __n > 0)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __eof = traits_type::eof();
@ -136,7 +136,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb && __n > 0)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const int_type __eof = traits_type::eof();

16
libstdc++-v3/src/istream.cc
View File

@ -37,7 +37,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
getline(char_type* __s, streamsize __n, char_type __delim)
{
_M_gcount = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, true);
if (__cerb)
{
@ -118,7 +118,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb && __n > 0)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const char_type __cdelim = traits_type::to_char_type(__delim);
@ -203,7 +203,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
typedef __istream_type::__ctype_type __ctype_type;
streamsize __extracted = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__istream_type::sentry __cerb(__in, false);
if (__cerb)
{
@ -286,7 +286,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
typedef __string_type::size_type __size_type;
__size_type __extracted = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__istream_type::sentry __cerb(__in, false);
if (__cerb)
{
@ -368,7 +368,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
__size_type __extracted = 0;
const __size_type __n = __str.max_size();
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__istream_type::sentry __cerb(__in, true);
if (__cerb)
{
@ -444,7 +444,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
getline(char_type* __s, streamsize __n, char_type __delim)
{
_M_gcount = 0;
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
sentry __cerb(*this, true);
if (__cerb)
{
@ -525,7 +525,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
sentry __cerb(*this, true);
if (__cerb && __n > 0)
{
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__try
{
const char_type __cdelim = traits_type::to_char_type(__delim);
@ -614,7 +614,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
__size_type __extracted = 0;
const __size_type __n = __str.max_size();
ios_base::iostate __err = ios_base::iostate(ios_base::goodbit);
ios_base::iostate __err = ios_base::goodbit;
__istream_type::sentry __cerb(__in, true);
if (__cerb)
{

4
libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/13.cc
View File

@ -58,8 +58,8 @@ void test13()
i = 0;
iss2.str(digits);
iss2.clear();
iss2 >> i;
VERIFY( i == 0 );
iss2 >> i;
VERIFY( i == numeric_limits<int>::max() );
VERIFY( iss2.fail() );
}

101
libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/dr696.cc Normal file
View File

@ -0,0 +1,101 @@
// 2009-07-15 Paolo Carlini <paolo.carlini@oracle.com>
//
// Copyright (C) 2009 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.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 27.6.1.2.2 arithmetic extractors
#include <sstream>
#include <limits>
#include <testsuite_hooks.h>
// DR 696.
void test01()
{
using namespace std;
bool test __attribute__((unused)) = true;
short s1 = 0;
ostringstream oss1;
oss1 << numeric_limits<short>::max();
istringstream iss1(oss1.str());
iss1 >> s1;
VERIFY( s1 == numeric_limits<short>::max() );
VERIFY( !iss1.fail() && iss1.eof() );
short s2 = 0;
ostringstream oss2;
oss2 << static_cast<long long>(numeric_limits<short>::max()) + 1;
istringstream iss2(oss2.str());
iss2 >> s2;
VERIFY( s2 == numeric_limits<short>::max() );
VERIFY( iss2.fail() && iss2.eof() );
short s3 = 0;
ostringstream oss3;
oss3 << numeric_limits<short>::min();
istringstream iss3(oss3.str());
iss3 >> s3;
VERIFY( s3 == numeric_limits<short>::min() );
VERIFY( !iss3.fail() && iss3.eof() );
short s4 = 0;
ostringstream oss4;
oss4 << static_cast<long long>(numeric_limits<short>::min()) - 1;
istringstream iss4(oss4.str());
iss4 >> s4;
VERIFY( s4 == numeric_limits<short>::min() );
VERIFY( iss4.fail() && iss4.eof() );
int i1 = 0;
ostringstream oss5;
oss5 << numeric_limits<int>::max();
istringstream iss5(oss5.str());
iss5 >> i1;
VERIFY( i1 == numeric_limits<int>::max() );
VERIFY( !iss5.fail() && iss5.eof() );
int i2 = 0;
ostringstream oss6;
oss6 << static_cast<long long>(numeric_limits<int>::max()) + 1;
istringstream iss6(oss6.str());
iss6 >> i2;
VERIFY( i1 == numeric_limits<int>::max() );
VERIFY( iss6.fail() && iss6.eof() );
int i3 = 0;
ostringstream oss7;
oss7 << numeric_limits<int>::min();
istringstream iss7(oss7.str());
iss7 >> i3;
VERIFY( i3 == numeric_limits<int>::min() );
VERIFY( !iss7.fail() && iss7.eof() );
int i4 = 0;
ostringstream oss8;
oss8 << static_cast<long long>(numeric_limits<int>::min()) - 1;
istringstream iss8(oss8.str());
iss8 >> i4;
VERIFY( i4 == numeric_limits<int>::min() );
VERIFY( iss8.fail() && iss8.eof() );
}
int main()
{
test01();
return 0;
}

2
libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/13.cc
View File

@ -56,7 +56,7 @@ void test13()
iss2.str(digits);
iss2.clear();
iss2 >> i;
VERIFY( i == 0 );
VERIFY( i == numeric_limits<int>::max() );
VERIFY( iss2.fail() );
}

101
libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/dr696.cc Normal file
View File

@ -0,0 +1,101 @@
// 2009-07-15 Paolo Carlini <paolo.carlini@oracle.com>
//
// Copyright (C) 2009 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.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 27.6.1.2.2 arithmetic extractors
#include <sstream>
#include <limits>
#include <testsuite_hooks.h>
// DR 696.
void test01()
{
using namespace std;
bool test __attribute__((unused)) = true;
short s1 = 0;
wostringstream oss1;
oss1 << numeric_limits<short>::max();
wistringstream iss1(oss1.str());
iss1 >> s1;
VERIFY( s1 == numeric_limits<short>::max() );
VERIFY( !iss1.fail() && iss1.eof() );
short s2 = 0;
wostringstream oss2;
oss2 << static_cast<long long>(numeric_limits<short>::max()) + 1;
wistringstream iss2(oss2.str());
iss2 >> s2;
VERIFY( s2 == numeric_limits<short>::max() );
VERIFY( iss2.fail() && iss2.eof() );
short s3 = 0;
wostringstream oss3;
oss3 << numeric_limits<short>::min();
wistringstream iss3(oss3.str());
iss3 >> s3;
VERIFY( s3 == numeric_limits<short>::min() );
VERIFY( !iss3.fail() && iss3.eof() );
short s4 = 0;
wostringstream oss4;
oss4 << static_cast<long long>(numeric_limits<short>::min()) - 1;
wistringstream iss4(oss4.str());
iss4 >> s4;
VERIFY( s4 == numeric_limits<short>::min() );
VERIFY( iss4.fail() && iss4.eof() );
int i1 = 0;
wostringstream oss5;
oss5 << numeric_limits<int>::max();
wistringstream iss5(oss5.str());
iss5 >> i1;
VERIFY( i1 == numeric_limits<int>::max() );
VERIFY( !iss5.fail() && iss5.eof() );
int i2 = 0;
wostringstream oss6;
oss6 << static_cast<long long>(numeric_limits<int>::max()) + 1;
wistringstream iss6(oss6.str());
iss6 >> i2;
VERIFY( i1 == numeric_limits<int>::max() );
VERIFY( iss6.fail() && iss6.eof() );
int i3 = 0;
wostringstream oss7;
oss7 << numeric_limits<int>::min();
wistringstream iss7(oss7.str());
iss7 >> i3;
VERIFY( i3 == numeric_limits<int>::min() );
VERIFY( !iss7.fail() && iss7.eof() );
int i4 = 0;
wostringstream oss8;
oss8 << static_cast<long long>(numeric_limits<int>::min()) - 1;
wistringstream iss8(oss8.str());
iss8 >> i4;
VERIFY( i4 == numeric_limits<int>::min() );
VERIFY( iss8.fail() && iss8.eof() );
}
int main()
{
test01();
return 0;
}