* docs/html/ext/howto.html ('LWG Issues'): Add issue 60, partial
implementation only.
* include/bits/istream.tcc (putback, unget, sync, tellg, seekg):
Comment and change to comply with DR 60 and the effect on gcount().
* include/std/std_istream.h: Update comments.
* testsuite/27_io/basic_istream/putback/char/1.cc (test01): Add
comments about reasons for tests. Test sync() against gcount().
* testsuite/27_io/basic_istream/seekg/char/2.cc: New file, test
for effect on gcount().
* testsuite/27_io/basic_istream/tellg/char/2.cc: New file, test
for effect on gcount().
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@65983
138bc75d-0d04-0410-961f-
82ee72b054a4
+2003-04-23 Phil Edwards <pme@gcc.gnu.org>
+
+ * docs/html/ext/howto.html ('LWG Issues'): Add issue 60, partial
+ implementation only.
+ * include/bits/istream.tcc (putback, unget, sync, tellg, seekg):
+ Comment and change to comply with DR 60 and the effect on gcount().
+ * include/std/std_istream.h: Update comments.
+ * testsuite/27_io/basic_istream/putback/char/1.cc (test01): Add
+ comments about reasons for tests. Test sync() against gcount().
+ * testsuite/27_io/basic_istream/seekg/char/2.cc: New file, test
+ for effect on gcount().
+ * testsuite/27_io/basic_istream/tellg/char/2.cc: New file, test
+ for effect on gcount().
+
2003-04-22 Loren J. Rittle <ljrittle@acm.org>
* testsuite/27_io/basic_filebuf/close/char/9964.cc (test_07):
"copying stream state" was deemed too complicated.
</dd>
+ <dt><a href="lwg-defects.html#60">60</a>:
+ <em>What is a formatted input function?</em>
+ </dt>
+ <dd>This DR made many widespread changes to <code>basic_istream</code>,
+ not all of which have been implemented.
+ </dd>
+
<dt><a href="lwg-defects.html#68">68</a>:
<em>Extractors for char* should store null at end</em>
</dt>
basic_istream<_CharT, _Traits>::
putback(char_type __c)
{
+#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
+// 60. What is a formatted input function?
_M_gcount = 0;
+#endif
sentry __cerb(*this, true);
if (__cerb)
{
basic_istream<_CharT, _Traits>::
unget(void)
{
+#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
+// 60. What is a formatted input function?
_M_gcount = 0;
+#endif
sentry __cerb(*this, true);
if (__cerb)
{
basic_istream<_CharT, _Traits>::
sync(void)
{
+ // DR60. Do not change _M_gcount.
int __ret = -1;
- _M_gcount = 0;
sentry __cerb(*this, true);
if (__cerb)
{
basic_istream<_CharT, _Traits>::
seekg(pos_type __pos)
{
- _M_gcount = 0;
+ // DR60. Do not change _M_gcount.
if (!this->fail())
{
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
basic_istream<_CharT, _Traits>::
seekg(off_type __off, ios_base::seekdir __dir)
{
- _M_gcount = 0;
+ // DR60. Do not change _M_gcount.
if (!this->fail())
{
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
*
* @note Since no characters are extracted, the next call to
* @c gcount() will return 0, as required by DR 60.
- *
- * @if maint
- * FIXME We don't comply with DR 60 here, _M_gcount is untouched.
- * @endif
*/
__istream_type&
putback(char_type __c);
* @note This function does not count the number of characters
* extracted, if any, and therefore does not affect the next
* call to @c gcount().
- * @if maint
- * FIXME We don't comply with DR 60 here, _M_gcount is zeroed.
- * @endif
*/
int
sync();
* @note This function does not count the number of characters
* extracted, if any, and therefore does not affect the next
* call to @c gcount().
- * @if maint
- * FIXME We don't comply with DR 60 here, _M_gcount is zeroed.
- * @endif
*/
__istream_type&
seekg(pos_type);
* @note This function does not count the number of characters
* extracted, if any, and therefore does not affect the next
* call to @c gcount().
- * @if maint
- * FIXME We don't comply with DR 60 here, _M_gcount is zeroed.
- * @endif
*/
__istream_type&
seekg(off_type, ios_base::seekdir);
std::stringbuf isbuf_03(str_02, std::ios_base::in);
std::stringbuf isbuf_04(str_02, std::ios_base::in);
+ std::stringbuf isbuf_05(str_02, std::ios_base::in);
- std::istream is_00(NULL);
+ std::istream is_00(&isbuf_05);
std::istream is_03(&isbuf_03);
std::istream is_04(&isbuf_04);
std::ios_base::iostate state1, state2, statefail, stateeof;
is_04.clear();
state1 = is_04.rdstate();
is_04.putback('|');
- VERIFY( is_04.gcount() == 0 );
+ VERIFY( is_04.gcount() == 0 ); // DR 60
state2 = is_04.rdstate();
VERIFY( state1 == state2 );
VERIFY( is_04.peek() == '|' );
is_04.clear();
state1 = is_04.rdstate();
is_04.unget();
- VERIFY( is_04.gcount() == 0 );
+ VERIFY( is_04.gcount() == 0 ); // DR 60
state2 = is_04.rdstate();
VERIFY( state1 == state2 );
VERIFY( is_04.peek() == 'r' );
// int sync()
+ is_00.ignore(10);
+ int count1 = is_00.gcount();
int i = is_00.sync();
+ int count2 = is_00.gcount();
+ VERIFY (count1 == count2 ); // DR 60
}
int
--- /dev/null
+// 2003-04-22 pme
+
+// Copyright (C) 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// 27.6.1.3 unformatted input functions
+// DR 60 -- seekg does not effect calls to gcount
+
+#include <istream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+ using namespace std;
+ bool test = true;
+
+ istringstream ist("the lamb lies down on broadway");
+ ios::pos_type pos = ist.tellg();
+ ist.ignore(4);
+ int count1 = ist.gcount();
+ ist.seekg(pos);
+ int count2 = ist.gcount();
+ ist.seekg(pos, ios::beg);
+ count2 = ist.gcount();
+ VERIFY( count1 == count2 );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
--- /dev/null
+// 2003-04-22 pme
+
+// Copyright (C) 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// 27.6.1.3 unformatted input functions
+// DR 60 -- tellg does not effect calls to gcount
+
+#include <istream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+ using namespace std;
+ bool test = true;
+
+ istringstream ist("three sides live");
+ ist.ignore(4);
+ int count1 = ist.gcount();
+ ist.tellg();
+ int count2 = ist.gcount();
+ VERIFY( count1 == count2 );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}
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