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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [22_locale/] [codecvt/] [unshift/] [wchar_t/] [1.cc] - Blame information for rev 19

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1 19 jlechner
// 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com>
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// Copyright (C) 2000, 2002, 2003 Free Software Foundation
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//
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// This file is part of the GNU ISO C++ Library.  This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING.  If not, write to the Free
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// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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// USA.
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// 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
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#include <locale>
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#include <testsuite_hooks.h>
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// Need to explicitly set the state(mbstate_t) to zero.
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// How to do this is not specified by the ISO C99 standard, so we
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// might need to add some operators to make the intuiative case
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// work:
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//   w_codecvt::state_type state00;
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//   state00 = 0;  
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// or, can use this explicit "C" initialization:
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//   w_codecvt::state_type state01 = {0, 0};
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// .. except Ulrich says: Use memset. Always use memset. Feel the force...
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void
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zero_state(std::mbstate_t& state)
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{ std::memset(&state, 0, sizeof(std::mbstate_t)); }
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// Required instantiation
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// codecvt<wchar_t, char, mbstate_t>
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void test01()
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{
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  using namespace std;
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  typedef codecvt<wchar_t, char, mbstate_t>     w_codecvt;
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  typedef codecvt_base::result                  result;
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  typedef wchar_t                               int_type;
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  typedef char                                  ext_type;
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  bool test __attribute__((unused)) = true;
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  const ext_type*       e_lit = "black pearl jasmine tea";
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  int                   size = strlen(e_lit);
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  ext_type*             e_arr = new ext_type[size + 1];
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  ext_type*             eto_next;
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  locale                loc;
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  const w_codecvt*      cvt = &use_facet<w_codecvt>(loc);
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  // unshift
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  strcpy(e_arr, e_lit);
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  w_codecvt::state_type state03;
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  zero_state(state03);
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  result r3 = cvt->unshift(state03, e_arr, e_arr + size, eto_next);
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  VERIFY( r3 == codecvt_base::noconv );
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  VERIFY( !strcmp(e_arr, e_lit) );
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  VERIFY( eto_next == e_arr );
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  delete [] e_arr;
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}
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int main ()
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{
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  test01();
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  return 0;
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}

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