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1 files changed, 109 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/unshift/wchar_t/2.cc b/libstdc++-v3/testsuite/22_locale/codecvt/unshift/wchar_t/2.cc
new file mode 100644
index 000000000..15aaf1d99
--- /dev/null
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/unshift/wchar_t/2.cc
@@ -0,0 +1,109 @@
+// { dg-require-namedlocale "en_US.ISO-8859-1" }
+
+// 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>
+void test02()
+{
+  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 int_type* 	i_lit =
+    L"\x1\x2\x3\x4\x5\x6\x7\x8\x9\xa\xb\xc\xd\xe\xf\x10\x11\x12\x13"
+    L"\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20!\"#$%&"
+    L"'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`"
+    L"abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86"
+    L"\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95"
+    L"\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4"
+    L"\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3"
+    L"\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2"
+    L"\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1"
+    L"\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0"
+    L"\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef"
+    L"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe"
+    L"\xff";
+
+  const int_type*       ifrom_next;
+  int 			size = wcslen(i_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 = locale("en_US.ISO-8859-1");
+  locale::global(loc);
+  const w_codecvt* 	cvt = &use_facet<w_codecvt>(loc); 
+
+  // unshift
+  w_codecvt::state_type state01;
+  zero_state(state01);
+  result r1 = cvt->unshift(state01, e_arr, e_arr + size, eto_next);
+  VERIFY( r1 == codecvt_base::noconv );
+  VERIFY( !ext_traits::compare(e_arr, e_ref, size + 1) ); 
+  VERIFY( eto_next == e_arr );
+
+  for (int i = 0; i < size; ++i)
+    {
+      w_codecvt::state_type state02;
+      zero_state(state02);
+      cvt->out(state02, i_lit + i, i_lit + i + 1, ifrom_next, 
+	       e_arr, e_arr + size, eto_next);
+      memset(e_arr, 0xf0, size + 1);
+      result r2 = cvt->unshift(state02, e_arr, e_arr + size, eto_next);
+      VERIFY( r2 == codecvt_base::noconv );
+      VERIFY( !ext_traits::compare(e_arr, e_ref, size + 1) ); 
+      VERIFY( eto_next == e_arr );
+    }
+
+  delete [] e_arr;
+  delete [] e_ref;
+}
+
+int main ()
+{
+  test02();
+  return 0;
+}