</p></dd><dt><a id="manual.bugs.dr550"></a><span class="term"><a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#550" target="_top">550</a>:
<span class="emphasis"><em>What should the return type of pow(float,int) be?</em></span>
</span></dt><dd><p>In C++11 mode, remove the pow(float,int), etc., signatures.
+ </p></dd><dt><a id="manual.bugs.dr581"></a><span class="term"><a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#581" target="_top">581</a>:
+ <span class="emphasis"><em><code class="code">flush()</code> not unformatted function</em></span>
+ </span></dt><dd><p>Change it to be a unformatted output function (i.e. construct a sentry and catch exceptions).
</p></dd><dt><a id="manual.bugs.dr586"></a><span class="term"><a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#586" target="_top">586</a>:
<span class="emphasis"><em>string inserter not a formatted function</em></span>
</span></dt><dd><p>Change it to be a formatted output function (i.e. catch exceptions).
<listitem><para>In C++11 mode, remove the pow(float,int), etc., signatures.
</para></listitem></varlistentry>
+ <varlistentry xml:id="manual.bugs.dr581"><term><link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="&DR;#581">581</link>:
+ <emphasis><code>flush()</code> not unformatted function</emphasis>
+ </term>
+ <listitem><para>Change it to be a unformatted output function (i.e. construct a sentry and catch exceptions).
+ </para></listitem></varlistentry>
+
<varlistentry xml:id="manual.bugs.dr586"><term><link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="&DR;#586">586</link>:
<emphasis>string inserter not a formatted function</emphasis>
</term>
if (this->rdbuf())
_M_streambuf_state = __state;
else
- _M_streambuf_state = __state | badbit;
+ _M_streambuf_state = __state | badbit;
if (this->exceptions() & this->rdstate())
__throw_ios_failure(__N("basic_ios::clear"));
}
// _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&)
+ // 581. flush() not unformatted function
+ // basic_ostream::flush() *is* an unformatted output function.
+ if (__streambuf_type* __buf = this->rdbuf())
{
- this->_M_setstate(ios_base::badbit);
- __throw_exception_again;
+ sentry __cerb(*this);
+ if (__cerb)
+ {
+ ios_base::iostate __err = ios_base::goodbit;
+ __try
+ {
+ if (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);
+ }
}
- __catch(...)
- { this->_M_setstate(ios_base::badbit); }
- if (__err)
- this->setstate(__err);
return *this;
}
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 60. What is a formatted input function?
// basic_ostream::flush() does not behave as an unformatted output function.
+// But wait ...
+// 581. flush() not unformatted function
+// So now basic_ostream::flush() *is* an unformatted output function.
#include <ostream>
#include <testsuite_hooks.h>
#include <testsuite_io.h>
+void
+test01()
+{
+ std::ostream os(0);
+ VERIFY( os.bad() );
+
+ // Nothing should happen if os.rdbuf() is null. No sentry is constructed.
+ os.flush();
+ VERIFY( os.rdstate() == std::ios_base::badbit ); // no failbit
+
+ os.exceptions(std::ios_base::failbit);
+ os.flush();
+}
+
void test02()
{
__gnu_test::sync_streambuf buf;
std::ostream os(&buf);
-
+
__gnu_test::sync_streambuf buf_tie;
std::ostream os_tie(&buf_tie);
- // No sentry should be constructed so os.tie()->flush() should not be
- // called.
+ // A sentry should be constructed so os.tie()->flush() should be called.
os.tie(&os_tie);
-
+
os.flush();
VERIFY( os.good() );
VERIFY( buf.sync_called() );
- VERIFY( !buf_tie.sync_called() );
+ VERIFY( buf_tie.sync_called() );
+}
- // os.rdbuf()->pubsync() should be called even if !os.good().
+void
+test03()
+{
+ __gnu_test::sync_streambuf buf;
+ std::ostream os(&buf);
+
+ __gnu_test::sync_streambuf buf_tie;
+ std::ostream os_tie(&buf_tie);
+
+ os.tie(&os_tie);
+
+ // os.rdbuf()->pubsync() should not be called if !os.good().
os.setstate(std::ios_base::eofbit);
os.flush();
- VERIFY( os.rdstate() == std::ios_base::eofbit );
- VERIFY( buf.sync_called() );
+ VERIFY( os.rdstate() & std::ios_base::eofbit );
+ VERIFY( !buf.sync_called() );
VERIFY( !buf_tie.sync_called() );
}
int main()
{
+ test01();
test02();
- return 0;
+ test03();
}
-
{
__gnu_test::fail_streambuf bib;
ostream stream(&bib);
+
+ stream.flush(); // should catch exception and set badbit
+ VERIFY( stream.rdstate() == ios_base::badbit );
+
+ stream.clear();
stream.exceptions(ios_base::badbit);
try
{
- stream.flush();
+ stream.flush(); // should catch exception and set badbit and rethrow
VERIFY( false );
}
- catch (const __gnu_test::positioning_error&)
+ catch (const __gnu_test::positioning_error&)
{
- // stream should set badbit and rethrow facet_error.
- VERIFY( stream.bad() );
- VERIFY( (stream.rdstate() & ios_base::failbit) == 0 );
- VERIFY( !stream.eof() );
+ VERIFY( stream.rdstate() == ios_base::badbit );
}
- catch (...)
+ catch (...)
{
VERIFY( false );
}
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 60. What is a formatted input function?
// basic_ostream::flush() does not behave as an unformatted output function.
+// But wait ...
+// 581. flush() not unformatted function
+// So now basic_ostream::flush() *is* an unformatted output function.
#include <ostream>
#include <testsuite_hooks.h>
#include <testsuite_io.h>
+void
+test01()
+{
+ std::wostream os(0);
+ VERIFY( os.bad() );
+
+ // Nothing should happen if os.rdbuf() is null. No sentry is constructed.
+ os.flush();
+ VERIFY( os.rdstate() == std::ios_base::badbit ); // no failbit
+
+ os.exceptions(std::ios_base::failbit);
+ os.flush();
+}
+
void test02()
{
__gnu_test::sync_wstreambuf buf;
std::wostream os(&buf);
-
+
__gnu_test::sync_wstreambuf buf_tie;
std::wostream os_tie(&buf_tie);
- // No sentry should be constructed so os.tie()->flush() should not be
- // called.
+ // A sentry should be constructed so os.tie()->flush() should be called.
os.tie(&os_tie);
-
+
os.flush();
VERIFY( os.good() );
VERIFY( buf.sync_called() );
- VERIFY( !buf_tie.sync_called() );
+ VERIFY( buf_tie.sync_called() );
+}
- // os.rdbuf()->pubsync() should be called even if !os.good().
+void
+test03()
+{
+ __gnu_test::sync_wstreambuf buf;
+ std::wostream os(&buf);
+
+ __gnu_test::sync_wstreambuf buf_tie;
+ std::wostream os_tie(&buf_tie);
+
+ os.tie(&os_tie);
+
+ // os.rdbuf()->pubsync() should not be called if !os.good().
os.setstate(std::ios_base::eofbit);
os.flush();
- VERIFY( os.rdstate() == std::ios_base::eofbit );
- VERIFY( buf.sync_called() );
+ VERIFY( os.rdstate() & std::ios_base::eofbit );
+ VERIFY( !buf.sync_called() );
VERIFY( !buf_tie.sync_called() );
}
int main()
{
+ test01();
test02();
- return 0;
+ test03();
}
-
{
__gnu_test::fail_wstreambuf bib;
wostream stream(&bib);
+
+ stream.flush(); // should catch exception and set badbit
+ VERIFY( stream.rdstate() == ios_base::badbit );
+
+ stream.clear();
stream.exceptions(ios_base::badbit);
try
{
- stream.flush();
+ stream.flush(); // should catch exception and set badbit and rethrow
VERIFY( false );
}
- catch (const __gnu_test::positioning_error&)
+ catch (const __gnu_test::positioning_error&)
{
- // stream should set badbit and rethrow facet_error.
- VERIFY( stream.bad() );
- VERIFY( (stream.rdstate() & ios_base::failbit) == 0 );
- VERIFY( !stream.eof() );
+ VERIFY( stream.rdstate() == ios_base::badbit );
}
- catch (...)
+ catch (...)
{
VERIFY( false );
}
projects / thirdparty / gcc.git / commitdiff
