libstdc++: Add std::time_get %r support [PR71367]
Commit Message
Hi!
This incremental patch adds std::time_get %r support (%p was added already
in the previous patch). The _M_am_fm_format method previously in the header
unfortunately had wrong arguments and so was useless, so the largest
complication in this patch is exporting a new symbol in the right symbol
version.
Tested on x86_64-linux, ok for trunk?
2021-12-10 Jakub Jelinek <jakub@redhat.com>
PR libstdc++/71367
* config/locale/dragonfly/time_members.cc (_M_initialize_timepunct):
Initialize "C" _M_am_pm_format to %I:%M:%S %p rather than empty
string.
* config/locale/gnu/time_members.cc (_M_initialize_timepunct):
Likewise.
* config/locale/generic/time_members.cc (_M_initialize_timepunct):
Likewise.
* include/bits/locale_facets_nonio.h (_M_am_pm_format): New method.
* include/bits/locale_facets_nonio.tcc (_M_extract_via_format): Handle
%r.
* config/abi/pre/gnu.ver (GLIBCXX_3.4.30): Export _M_am_pm_format
with const _CharT** argument, ensure it isn't exported in GLIBCXX_3.4.
* testsuite/22_locale/time_get/get/char/71367.cc: New test.
* testsuite/22_locale/time_get/get/wchar_t/71367.cc: New test.
Jakub
Comments
On Fri, 10 Dec 2021 at 12:49, Jakub Jelinek via Libstdc++
<libstdc++@gcc.gnu.org> wrote:
>
> Hi!
>
> This incremental patch adds std::time_get %r support (%p was added already
> in the previous patch). The _M_am_fm_format method previously in the header
> unfortunately had wrong arguments and so was useless, so the largest
> complication in this patch is exporting a new symbol in the right symbol
> version.
>
> Tested on x86_64-linux, ok for trunk?
Yes, this one is OK too, thanks!
>
> 2021-12-10 Jakub Jelinek <jakub@redhat.com>
>
> PR libstdc++/71367
> * config/locale/dragonfly/time_members.cc (_M_initialize_timepunct):
> Initialize "C" _M_am_pm_format to %I:%M:%S %p rather than empty
> string.
> * config/locale/gnu/time_members.cc (_M_initialize_timepunct):
> Likewise.
> * config/locale/generic/time_members.cc (_M_initialize_timepunct):
> Likewise.
> * include/bits/locale_facets_nonio.h (_M_am_pm_format): New method.
> * include/bits/locale_facets_nonio.tcc (_M_extract_via_format): Handle
> %r.
> * config/abi/pre/gnu.ver (GLIBCXX_3.4.30): Export _M_am_pm_format
> with const _CharT** argument, ensure it isn't exported in GLIBCXX_3.4.
> * testsuite/22_locale/time_get/get/char/71367.cc: New test.
> * testsuite/22_locale/time_get/get/wchar_t/71367.cc: New test.
>
> --- libstdc++-v3/config/locale/dragonfly/time_members.cc.jj 2021-01-05 00:13:58.281297350 +0100
> +++ libstdc++-v3/config/locale/dragonfly/time_members.cc 2021-12-10 12:27:18.350425776 +0100
> @@ -74,7 +74,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> _M_data->_M_date_time_era_format = "";
> _M_data->_M_am = "AM";
> _M_data->_M_pm = "PM";
> - _M_data->_M_am_pm_format = "";
> + _M_data->_M_am_pm_format = "%I:%M:%S %p";
>
> // Day names, starting with "C"'s Sunday.
> _M_data->_M_day1 = "Sunday";
> @@ -231,7 +231,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> _M_data->_M_date_time_era_format = L"";
> _M_data->_M_am = L"AM";
> _M_data->_M_pm = L"PM";
> - _M_data->_M_am_pm_format = L"";
> + _M_data->_M_am_pm_format = L"%I:%M:%S %p";
>
> // Day names, starting with "C"'s Sunday.
> _M_data->_M_day1 = L"Sunday";
> --- libstdc++-v3/config/locale/gnu/time_members.cc.jj 2021-01-05 00:13:58.282297338 +0100
> +++ libstdc++-v3/config/locale/gnu/time_members.cc 2021-12-10 12:26:52.979787605 +0100
> @@ -80,7 +80,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> _M_data->_M_date_time_era_format = "";
> _M_data->_M_am = "AM";
> _M_data->_M_pm = "PM";
> - _M_data->_M_am_pm_format = "";
> + _M_data->_M_am_pm_format = "%I:%M:%S %p";
>
> // Day names, starting with "C"'s Sunday.
> _M_data->_M_day1 = "Sunday";
> @@ -236,7 +236,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> _M_data->_M_date_time_era_format = L"";
> _M_data->_M_am = L"AM";
> _M_data->_M_pm = L"PM";
> - _M_data->_M_am_pm_format = L"";
> + _M_data->_M_am_pm_format = L"%I:%M:%S %p";
>
> // Day names, starting with "C"'s Sunday.
> _M_data->_M_day1 = L"Sunday";
> --- libstdc++-v3/config/locale/generic/time_members.cc.jj 2021-01-05 00:13:58.282297338 +0100
> +++ libstdc++-v3/config/locale/generic/time_members.cc 2021-12-10 12:27:55.433896906 +0100
> @@ -72,7 +72,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> _M_data->_M_date_time_era_format = "";
> _M_data->_M_am = "AM";
> _M_data->_M_pm = "PM";
> - _M_data->_M_am_pm_format = "";
> + _M_data->_M_am_pm_format = "%I:%M:%S %p";
>
> // Day names, starting with "C"'s Sunday.
> _M_data->_M_day1 = "Sunday";
> @@ -157,7 +157,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> _M_data->_M_date_time_era_format = L"";
> _M_data->_M_am = L"AM";
> _M_data->_M_pm = L"PM";
> - _M_data->_M_am_pm_format = L"";
> + _M_data->_M_am_pm_format = L"%I:%M:%S %p";
>
> // Day names, starting with "C"'s Sunday.
> _M_data->_M_day1 = L"Sunday";
> --- libstdc++-v3/include/bits/locale_facets_nonio.h.jj 2021-04-06 23:49:08.318882385 +0200
> +++ libstdc++-v3/include/bits/locale_facets_nonio.h 2021-12-10 12:55:26.240337962 +0100
> @@ -243,6 +243,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> #endif
>
> void
> + _M_am_pm_format(const _CharT** __ampm_format) const
> + {
> + __ampm_format[0] = _M_data->_M_am_pm_format;
> + }
> +
> + void
> _M_am_pm(const _CharT** __ampm) const
> {
> __ampm[0] = _M_data->_M_am;
> --- libstdc++-v3/include/bits/locale_facets_nonio.tcc.jj 2021-12-09 22:52:34.892266539 +0100
> +++ libstdc++-v3/include/bits/locale_facets_nonio.tcc 2021-12-10 12:56:02.721816838 +0100
> @@ -806,6 +806,13 @@ _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11
> if (!__tmperr && __mem)
> __tm->tm_hour += 12;
> break;
> + case 'r':
> + // Locale's 12-hour clock time format (in C %I:%M:%S %p).
> + const char_type* __ampm_format;
> + __tp._M_am_pm_format(&__ampm_format);
> + __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
> + __tm, __ampm_format);
> + break;
> case 'R':
> // Equivalent to (%H:%M).
> __cs = "%H:%M";
> --- libstdc++-v3/config/abi/pre/gnu.ver.jj 2021-11-12 23:02:20.247930376 +0100
> +++ libstdc++-v3/config/abi/pre/gnu.ver 2021-12-10 13:22:34.569067900 +0100
> @@ -185,7 +185,13 @@ GLIBCXX_3.4 {
> std::_List_node_base::unhook*;
> std::_List_node_base::reverse*;
> std::_List_node_base::transfer*;
> - std::__timepunct*;
> +# std::__timepunct*;
> + std::__timepunct?char?::[^_]*;
> + std::__timepunct?char?::_[^M]*;
> + std::__timepunct?char?::_M_[^a]*;
> + std::__timepunct?wchar_t?::[^_]*;
> + std::__timepunct?wchar_t?::_[^M]*;
> + std::__timepunct?wchar_t?::_M_[^a]*;
> # std::__numeric_limits_base*;
> std::__num_base::_S_format_float*;
> std::__num_base::_S_format_int*;
> @@ -684,6 +690,10 @@ GLIBCXX_3.4 {
> # std::__convert_to_v
> _ZSt14__convert_to_vI[^gU]*;
>
> + # std::__timepunct
> + _ZNKSt11__timepunctI[cw]E8_M_am_pmEPPK[cw];
> + _ZNKSt11__timepunctI[cw]E15_M_am_pm_formatEPK[cw];
> +
> # __gnu_cxx::stdio_sync_filebuf
> _ZTVN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEE;
>
> @@ -2401,6 +2411,9 @@ GLIBCXX_3.4.30 {
>
> _ZSt21__glibcxx_assert_fail*;
>
> + # std::__timepunct<char>::_M_am_pm_format(const char**)
> + _ZNKSt11__timepunctI[cw]E15_M_am_pm_formatEPPK[cw];
> +
> } GLIBCXX_3.4.29;
>
> # Symbols in the support library (libsupc++) have their own tag.
> --- libstdc++-v3/testsuite/22_locale/time_get/get/char/71367.cc.jj 2021-12-10 12:38:54.910491672 +0100
> +++ libstdc++-v3/testsuite/22_locale/time_get/get/char/71367.cc 2021-12-10 12:41:36.540186566 +0100
> @@ -0,0 +1,67 @@
> +// { dg-do run { target c++11 } }
> +
> +// Copyright (C) 2021 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/>.
> +
> +#include <locale>
> +#include <sstream>
> +#include <iterator>
> +#include <testsuite_hooks.h>
> +
> +void
> +test01()
> +{
> + using namespace std;
> +
> + locale loc_c = locale::classic();
> +
> + istringstream iss;
> + iss.imbue(loc_c);
> + const time_get<char>& tget = use_facet<time_get<char>>(iss.getloc());
> + typedef istreambuf_iterator<char> iter;
> + const iter end;
> +
> + tm time;
> + ios_base::iostate err = ios_base::badbit;
> +
> + iss.str("01:38:12 PM");
> + string format = "%I:%M:%S %p";
> + auto ret = tget.get(iter(iss), end, iss, err, &time,
> + format.data(), format.data()+format.size());
> + VERIFY( err == ios_base::eofbit );
> + VERIFY( ret == end );
> + VERIFY( time.tm_hour == 13 );
> + VERIFY( time.tm_min == 38 );
> + VERIFY( time.tm_sec == 12 );
> +
> + iss.str("11:17:42 PM");
> + format = "%r";
> + ret = tget.get(iter(iss), end, iss, err, &time,
> + format.data(), format.data()+format.size());
> + VERIFY( err == ios_base::eofbit );
> + VERIFY( ret == end );
> + VERIFY( time.tm_hour == 23 );
> + VERIFY( time.tm_min == 17 );
> + VERIFY( time.tm_sec == 42 );
> +}
> +
> +int
> +main()
> +{
> + test01();
> + return 0;
> +}
> --- libstdc++-v3/testsuite/22_locale/time_get/get/wchar_t/71367.cc.jj 2021-12-10 12:41:53.890939115 +0100
> +++ libstdc++-v3/testsuite/22_locale/time_get/get/wchar_t/71367.cc 2021-12-10 12:42:59.996996334 +0100
> @@ -0,0 +1,67 @@
> +// { dg-do run { target c++11 } }
> +
> +// Copyright (C) 2021 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/>.
> +
> +#include <locale>
> +#include <sstream>
> +#include <iterator>
> +#include <testsuite_hooks.h>
> +
> +void
> +test01()
> +{
> + using namespace std;
> +
> + locale loc_c = locale::classic();
> +
> + wistringstream iss;
> + iss.imbue(loc_c);
> + const time_get<wchar_t>& tget = use_facet<time_get<wchar_t>>(iss.getloc());
> + typedef istreambuf_iterator<wchar_t> iter;
> + const iter end;
> +
> + tm time;
> + ios_base::iostate err = ios_base::badbit;
> +
> + iss.str(L"01:38:12 PM");
> + wstring format = L"%I:%M:%S %p";
> + auto ret = tget.get(iter(iss), end, iss, err, &time,
> + format.data(), format.data()+format.size());
> + VERIFY( err == ios_base::eofbit );
> + VERIFY( ret == end );
> + VERIFY( time.tm_hour == 13 );
> + VERIFY( time.tm_min == 38 );
> + VERIFY( time.tm_sec == 12 );
> +
> + iss.str(L"11:17:42 PM");
> + format = L"%r";
> + ret = tget.get(iter(iss), end, iss, err, &time,
> + format.data(), format.data()+format.size());
> + VERIFY( err == ios_base::eofbit );
> + VERIFY( ret == end );
> + VERIFY( time.tm_hour == 23 );
> + VERIFY( time.tm_min == 17 );
> + VERIFY( time.tm_sec == 42 );
> +}
> +
> +int
> +main()
> +{
> + test01();
> + return 0;
> +}
>
> Jakub
>
@@ -74,7 +74,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_data->_M_date_time_era_format = "";
_M_data->_M_am = "AM";
_M_data->_M_pm = "PM";
- _M_data->_M_am_pm_format = "";
+ _M_data->_M_am_pm_format = "%I:%M:%S %p";
// Day names, starting with "C"'s Sunday.
_M_data->_M_day1 = "Sunday";
@@ -231,7 +231,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_data->_M_date_time_era_format = L"";
_M_data->_M_am = L"AM";
_M_data->_M_pm = L"PM";
- _M_data->_M_am_pm_format = L"";
+ _M_data->_M_am_pm_format = L"%I:%M:%S %p";
// Day names, starting with "C"'s Sunday.
_M_data->_M_day1 = L"Sunday";
@@ -80,7 +80,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_data->_M_date_time_era_format = "";
_M_data->_M_am = "AM";
_M_data->_M_pm = "PM";
- _M_data->_M_am_pm_format = "";
+ _M_data->_M_am_pm_format = "%I:%M:%S %p";
// Day names, starting with "C"'s Sunday.
_M_data->_M_day1 = "Sunday";
@@ -236,7 +236,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_data->_M_date_time_era_format = L"";
_M_data->_M_am = L"AM";
_M_data->_M_pm = L"PM";
- _M_data->_M_am_pm_format = L"";
+ _M_data->_M_am_pm_format = L"%I:%M:%S %p";
// Day names, starting with "C"'s Sunday.
_M_data->_M_day1 = L"Sunday";
@@ -72,7 +72,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_data->_M_date_time_era_format = "";
_M_data->_M_am = "AM";
_M_data->_M_pm = "PM";
- _M_data->_M_am_pm_format = "";
+ _M_data->_M_am_pm_format = "%I:%M:%S %p";
// Day names, starting with "C"'s Sunday.
_M_data->_M_day1 = "Sunday";
@@ -157,7 +157,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_data->_M_date_time_era_format = L"";
_M_data->_M_am = L"AM";
_M_data->_M_pm = L"PM";
- _M_data->_M_am_pm_format = L"";
+ _M_data->_M_am_pm_format = L"%I:%M:%S %p";
// Day names, starting with "C"'s Sunday.
_M_data->_M_day1 = L"Sunday";
@@ -243,6 +243,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#endif
void
+ _M_am_pm_format(const _CharT** __ampm_format) const
+ {
+ __ampm_format[0] = _M_data->_M_am_pm_format;
+ }
+
+ void
_M_am_pm(const _CharT** __ampm) const
{
__ampm[0] = _M_data->_M_am;
@@ -806,6 +806,13 @@ _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11
if (!__tmperr && __mem)
__tm->tm_hour += 12;
break;
+ case 'r':
+ // Locale's 12-hour clock time format (in C %I:%M:%S %p).
+ const char_type* __ampm_format;
+ __tp._M_am_pm_format(&__ampm_format);
+ __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
+ __tm, __ampm_format);
+ break;
case 'R':
// Equivalent to (%H:%M).
__cs = "%H:%M";
@@ -185,7 +185,13 @@ GLIBCXX_3.4 {
std::_List_node_base::unhook*;
std::_List_node_base::reverse*;
std::_List_node_base::transfer*;
- std::__timepunct*;
+# std::__timepunct*;
+ std::__timepunct?char?::[^_]*;
+ std::__timepunct?char?::_[^M]*;
+ std::__timepunct?char?::_M_[^a]*;
+ std::__timepunct?wchar_t?::[^_]*;
+ std::__timepunct?wchar_t?::_[^M]*;
+ std::__timepunct?wchar_t?::_M_[^a]*;
# std::__numeric_limits_base*;
std::__num_base::_S_format_float*;
std::__num_base::_S_format_int*;
@@ -684,6 +690,10 @@ GLIBCXX_3.4 {
# std::__convert_to_v
_ZSt14__convert_to_vI[^gU]*;
+ # std::__timepunct
+ _ZNKSt11__timepunctI[cw]E8_M_am_pmEPPK[cw];
+ _ZNKSt11__timepunctI[cw]E15_M_am_pm_formatEPK[cw];
+
# __gnu_cxx::stdio_sync_filebuf
_ZTVN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEE;
@@ -2401,6 +2411,9 @@ GLIBCXX_3.4.30 {
_ZSt21__glibcxx_assert_fail*;
+ # std::__timepunct<char>::_M_am_pm_format(const char**)
+ _ZNKSt11__timepunctI[cw]E15_M_am_pm_formatEPPK[cw];
+
} GLIBCXX_3.4.29;
# Symbols in the support library (libsupc++) have their own tag.
@@ -0,0 +1,67 @@
+// { dg-do run { target c++11 } }
+
+// Copyright (C) 2021 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/>.
+
+#include <locale>
+#include <sstream>
+#include <iterator>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ using namespace std;
+
+ locale loc_c = locale::classic();
+
+ istringstream iss;
+ iss.imbue(loc_c);
+ const time_get<char>& tget = use_facet<time_get<char>>(iss.getloc());
+ typedef istreambuf_iterator<char> iter;
+ const iter end;
+
+ tm time;
+ ios_base::iostate err = ios_base::badbit;
+
+ iss.str("01:38:12 PM");
+ string format = "%I:%M:%S %p";
+ auto ret = tget.get(iter(iss), end, iss, err, &time,
+ format.data(), format.data()+format.size());
+ VERIFY( err == ios_base::eofbit );
+ VERIFY( ret == end );
+ VERIFY( time.tm_hour == 13 );
+ VERIFY( time.tm_min == 38 );
+ VERIFY( time.tm_sec == 12 );
+
+ iss.str("11:17:42 PM");
+ format = "%r";
+ ret = tget.get(iter(iss), end, iss, err, &time,
+ format.data(), format.data()+format.size());
+ VERIFY( err == ios_base::eofbit );
+ VERIFY( ret == end );
+ VERIFY( time.tm_hour == 23 );
+ VERIFY( time.tm_min == 17 );
+ VERIFY( time.tm_sec == 42 );
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}
@@ -0,0 +1,67 @@
+// { dg-do run { target c++11 } }
+
+// Copyright (C) 2021 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/>.
+
+#include <locale>
+#include <sstream>
+#include <iterator>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ using namespace std;
+
+ locale loc_c = locale::classic();
+
+ wistringstream iss;
+ iss.imbue(loc_c);
+ const time_get<wchar_t>& tget = use_facet<time_get<wchar_t>>(iss.getloc());
+ typedef istreambuf_iterator<wchar_t> iter;
+ const iter end;
+
+ tm time;
+ ios_base::iostate err = ios_base::badbit;
+
+ iss.str(L"01:38:12 PM");
+ wstring format = L"%I:%M:%S %p";
+ auto ret = tget.get(iter(iss), end, iss, err, &time,
+ format.data(), format.data()+format.size());
+ VERIFY( err == ios_base::eofbit );
+ VERIFY( ret == end );
+ VERIFY( time.tm_hour == 13 );
+ VERIFY( time.tm_min == 38 );
+ VERIFY( time.tm_sec == 12 );
+
+ iss.str(L"11:17:42 PM");
+ format = L"%r";
+ ret = tget.get(iter(iss), end, iss, err, &time,
+ format.data(), format.data()+format.size());
+ VERIFY( err == ios_base::eofbit );
+ VERIFY( ret == end );
+ VERIFY( time.tm_hour == 23 );
+ VERIFY( time.tm_min == 17 );
+ VERIFY( time.tm_sec == 42 );
+}
+
+int
+main()
+{
+ test01();
+ return 0;
+}