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// 2003-02-06 Petur Runolfsson <peturr02@ru.is>
// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 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 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/>.
// 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
#include <locale>
#include <cstring>
#include <testsuite_hooks.h>
// Need to explicitly set the state(mbstate_t) to zero.
// How to do this is not specified by the ISO C99 standard, so we
// might need to add some operators to make the intuiative case
// work:
// w_codecvt::state_type state00;
// state00 = 0;
// or, can use this explicit "C" initialization:
// w_codecvt::state_type state01 = {0, 0};
// .. except Ulrich says: Use memset. Always use memset. Feel the force...
void
zero_state(std::mbstate_t& state)
{ std::memset(&state, 0, sizeof(std::mbstate_t)); }
// Required instantiation
// codecvt<wchar_t, char, mbstate_t>
//
// Test handling of output buffer that is too small.
// libstdc++/9247
void test06()
{
using namespace std;
typedef codecvt<wchar_t, char, mbstate_t> w_codecvt;
typedef codecvt_base::result result;
typedef wchar_t int_type;
typedef char ext_type;
typedef char_traits<char> ext_traits;
bool test __attribute__((unused)) = true;
const ext_type* e_lit = "black pearl jasmine tea";
const int_type* i_lit = L"black pearl jasmine tea";
const int_type* ifrom_next;
int size = strlen(e_lit);
ext_type* e_arr = new ext_type[size + 1];
ext_type* e_ref = new ext_type[size + 1];
memset(e_arr, 0xf0, size + 1);
memset(e_ref, 0xf0, size + 1);
ext_type* eto_next;
locale loc;
const w_codecvt* cvt = &use_facet<w_codecvt>(loc);
// out
w_codecvt::state_type state02;
zero_state(state02);
result r2 = cvt->out(state02, i_lit, i_lit + size, ifrom_next,
e_arr, e_arr + 1, eto_next);
VERIFY( r2 == codecvt_base::partial );
VERIFY( ifrom_next == i_lit + 1 );
VERIFY( eto_next == e_arr + 1 );
VERIFY( !ext_traits::compare(e_arr, e_lit, 1) );
VERIFY( !ext_traits::compare(eto_next, e_ref, size) );
delete [] e_arr;
delete [] e_ref;
}
int main ()
{
test06();
return 0;
}
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