OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

re PR libstdc++/13171 (Bugs in basic_filebuf::imbue)

Browse Source 
2003-11-26  Paolo Carlini  <pcarlini@suse.de>
	    Petur Runolfsson  <peturr02@ru.is>

	PR libstdc++/13171
	* include/bits/fstream.tcc (imbue): Relax the conditions under
	which the function succeeds: allow for two consecutive calls with
	the same name; state dependent encodings are ok even after open
	if at the beginning of the file; don't check seekoff return value
	(pipes, cin, cout, etc...)
	* testsuite/27_io/basic_filebuf/imbue/char/13171-1.cc: New.
	* testsuite/27_io/basic_filebuf/imbue/char/13171-2.cc: New.
	* testsuite/27_io/basic_filebuf/imbue/char/13171-3.cc: New.
	* testsuite/27_io/basic_filebuf/imbue/char/13171-4.cc: New.
	* testsuite/27_io/basic_filebuf/imbue/char/2.cc: Tweak comment.
	* testsuite/27_io/basic_filebuf/imbue/char/3.cc: Likewise.
	* testsuite/27_io/basic_filebuf/imbue/wchar_t/2.cc: Tweak comment.
	* testsuite/27_io/basic_filebuf/imbue/wchar_t/3.cc: Likewise.

	* testsuite/27_io/basic_filebuf/imbue/wchar_t/12868.cc: More
	correctly use the UTF-8 locale appearing in the PR.

Co-Authored-By: Petur Runolfsson <peturr02@ru.is>

From-SVN: r73954
This commit is contained in:
Paolo Carlini 2003-11-26 15:56:40 +00:00 committed by Paolo Carlini
parent 6796826ca4
commit c03d83d499
11 changed files with 260 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,24 @@
2003-11-26 Paolo Carlini <pcarlini@suse.de>
Petur Runolfsson <peturr02@ru.is>
PR libstdc++/13171
* include/bits/fstream.tcc (imbue): Relax the conditions under
which the function succeeds: allow for two consecutive calls with
the same name; state dependent encodings are ok even after open
if at the beginning of the file; don't check seekoff return value
(pipes, cin, cout, etc...)
* testsuite/27_io/basic_filebuf/imbue/char/13171-1.cc: New.
* testsuite/27_io/basic_filebuf/imbue/char/13171-2.cc: New.
* testsuite/27_io/basic_filebuf/imbue/char/13171-3.cc: New.
* testsuite/27_io/basic_filebuf/imbue/char/13171-4.cc: New.
* testsuite/27_io/basic_filebuf/imbue/char/2.cc: Tweak comment.
* testsuite/27_io/basic_filebuf/imbue/char/3.cc: Likewise.
* testsuite/27_io/basic_filebuf/imbue/wchar_t/2.cc: Tweak comment.
* testsuite/27_io/basic_filebuf/imbue/wchar_t/3.cc: Likewise.
* testsuite/27_io/basic_filebuf/imbue/wchar_t/12868.cc: More
correctly use the UTF-8 locale appearing in the PR.
2003-11-26 Paolo Carlini <pcarlini@suse.de>
* include/bits/locale_facets.h

33
libstdc++-v3/include/bits/fstream.tcc
View File

@ -744,27 +744,22 @@ namespace std
basic_filebuf<_CharT, _Traits>::
imbue(const locale& __loc)
{
if (this->getloc() != __loc)
bool __testfail = false;
if (this->is_open())
{
bool __testfail = false;
if (this->is_open())
{
const bool __testseek =
this->seekoff(0, ios_base::cur, this->_M_mode) ==
pos_type(off_type(-1));
const bool __teststate =
__check_facet(_M_codecvt).encoding() == -1;
const pos_type __ret = this->seekoff(0, ios_base::cur,
this->_M_mode);
const bool __teststate = __check_facet(_M_codecvt).encoding() == -1;
__testfail = __teststate && __ret != pos_type(off_type(0));
}
__testfail = __testseek || __teststate;
}
if (!__testfail)
{
if (__builtin_expect(has_facet<__codecvt_type>(__loc), true))
_M_codecvt = &use_facet<__codecvt_type>(__loc);
else
_M_codecvt = 0;
}
if (!__testfail)
{
if (__builtin_expect(has_facet<__codecvt_type>(__loc), true))
_M_codecvt = &use_facet<__codecvt_type>(__loc);
else
_M_codecvt = 0;
}
}

45
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13171-1.cc Normal file
View File

@ -0,0 +1,45 @@
// Copyright (C) 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.
// 27.8.1.4 Overridden virtual functions
#include <fstream>
#include <locale>
#include <testsuite_hooks.h>
// libstdc++/13171
void test01()
{
bool test __attribute__((unused)) = true;
using namespace std;
filebuf fb;
fb.pubimbue(__gnu_test::try_named_locale("en_US"));
fb.pubimbue(__gnu_test::try_named_locale("en_US"));
fb.open("tmp_13171-1", ios_base::out);
fb.sputc('F');
fb.pubsync();
fb.close();
}
int main()
{
test01();
}

63
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13171-2.cc Normal file
View File

@ -0,0 +1,63 @@
// Copyright (C) 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.
// 27.8.1.4 Overridden virtual functions
#include <fstream>
#include <locale>
#include <cassert>
#include <sys/types.h>
#include <sys/stat.h>
#include <testsuite_hooks.h>
// libstdc++/13171
void test01()
{
bool test __attribute__((unused)) = true;
using namespace std;
const char* name = "tmp_fifo_13171-2";
unlink(name);
mkfifo(name, S_IRWXU);
int child = fork();
if (child == 0)
{
filebuf fb;
fb.open(name, ios_base::out);
fb.sputc('S');
fb.close();
return;
}
filebuf fb;
fb.pubimbue(__gnu_test::try_named_locale("fr_FR"));
fb.open(name, ios_base::in);
assert(fb.is_open());
fb.pubimbue(__gnu_test::try_named_locale("en_US"));
filebuf::int_type c = fb.sgetc();
assert(c == 'S');
fb.close();
}
int main()
{
test01();
}

56
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13171-3.cc Normal file
View File

@ -0,0 +1,56 @@
// Copyright (C) 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.
// 27.8.1.4 Overridden virtual functions
#include <iostream>
#include <locale>
#include <testsuite_hooks.h>
// libstdc++/13171
void test01()
{
bool test __attribute__((unused)) = true;
using namespace std;
locale::global(__gnu_test::try_named_locale("fr_FR"));
ios_base::sync_with_stdio(false);
locale::global(locale("en_US"));
cin.imbue(locale("en_US"));
cout.imbue(locale("en_US"));
cerr.imbue(locale("en_US"));
clog.imbue(locale("de_DE"));
wcin.imbue(locale("en_US"));
wcout.imbue(locale("en_US"));
wcerr.imbue(locale("en_US"));
wclog.imbue(locale("de_DE"));
cout << 'f' << endl;
cerr << 'r' << endl;
clog << 'A' << endl;
wcout << L's' << endl;
wcerr << L'i' << endl;
wclog << L'L' << endl;
}
int main()
{
test01();
}

54
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13171-4.cc Normal file
View File

@ -0,0 +1,54 @@
// Copyright (C) 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.
// 27.8.1.4 Overridden virtual functions
#include <fstream>
#include <locale>
#include <testsuite_hooks.h>
class Cvt : public std::codecvt<char, char, std::mbstate_t>
{
protected:
int do_encoding() const throw()
{ return -1; }
bool do_always_noconv() const throw()
{ return false; }
};
// libstdc++/13171
int test01()
{
bool test __attribute__((unused)) = true;
using namespace std;
filebuf fb;
fb.pubimbue(locale(__gnu_test::try_named_locale("en_US"),
new Cvt));
fb.open("tmp_13171-4", ios_base::out);
fb.pubimbue(__gnu_test::try_named_locale("fr_FR"));
fb.sputc('N');
fb.pubsync();
fb.close();
}
int main()
{
test01();
}

4
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/2.cc
View File

@ -41,9 +41,7 @@ void test02()
pos_type p = ob.pubseekoff(2, ios_base::beg, ios_base::in);
VERIFY( p != bad);
// "if file is not positioned at its beginning" imbue fails
// but, according to 27.5.2.2.1, p1, still loc == getloc()
// after pubimbue(loc).
// According to 27.5.2.2.1, loc == getloc() after pubimbue(loc).
locale loc_de = __gnu_test::try_named_locale("de_DE");
locale ret = ob.pubimbue(loc_de);
VERIFY( ob.getloc() == loc_de );

3
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/3.cc
View File

@ -42,7 +42,8 @@ void test03()
ob.pubimbue(loc_s);
VERIFY( ob.getloc() == loc_s );
// 2 "if encoding of current locale is state dependent" fails...
// 2 "if encoding of current locale is state dependent" and
// not at the beginning of the file fails...
locale loc_c = locale::classic();
locale ret = ob.pubimbue(loc_s);
VERIFY( ob.getloc() == loc_s );

2
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/12868.cc
View File

@ -30,7 +30,7 @@ void test01()
using namespace std;
bool test __attribute__((unused)) = true;
locale loc_is(__gnu_test::try_named_locale("is_IS"));
locale loc_is(__gnu_test::try_named_locale("is_IS.UTF-8"));
{
wofstream out("tmp_12868");

4
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/2.cc
View File

@ -41,9 +41,7 @@ void test02()
pos_type p = ob.pubseekoff(2, ios_base::beg, ios_base::in);
VERIFY( p != bad);
// "if file is not positioned at its beginning" imbue fails
// but, according to 27.5.2.2.1, p1, still loc == getloc()
// after pubimbue(loc).
// According to 27.5.2.2.1, p1, loc == getloc() after pubimbue(loc).
locale loc_de = __gnu_test::try_named_locale("de_DE");
locale ret = ob.pubimbue(loc_de);
VERIFY( ob.getloc() == loc_de );

3
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/3.cc
View File

@ -42,7 +42,8 @@ void test03()
ob.pubimbue(loc_s);
VERIFY( ob.getloc() == loc_s );
// 2 "if encoding of current locale is state dependent" fails...
// 2 "if encoding of current locale is state dependent" and
// not at the beginning of the file fails...
locale loc_c = locale::classic();
locale ret = ob.pubimbue(loc_s);
VERIFY( ob.getloc() == loc_s );