Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / performance / 22_locale / wchar_t_in.cc

diff --git a/libstdc++-v3/testsuite/performance/22_locale/wchar_t_in.cc b/libstdc++-v3/testsuite/performance/22_locale/wchar_t_in.cc
new file mode 100644 (file)
index 0000000..021db4e
--- /dev/null
+++ b/libstdc++-v3/testsuite/performance/22_locale/wchar_t_in.cc
@@ -0,0 +1,75 @@
+// Copyright (C) 2003, 2009 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 <cstdio>
+#include <cstring>
+#include <fstream>
+#include <langinfo.h>
+#include <iconv.h>
+#include <testsuite_performance.h>
+
+// libstdc++/11602 (do_in)
+int main(int argc, char** argv)
+{
+  using namespace std;
+  using namespace __gnu_test;
+
+  time_counter time;
+  resource_counter resource;
+  const int iters = 400000;
+
+  wchar_t wbuf[1024];
+  char cbuf[1024];
+  
+  memset(cbuf, 'a', 1024);
+
+  // C (iconv)
+  iconv_t cd = iconv_open("WCHAR_T", nl_langinfo(CODESET));
+  start_counters(time, resource);
+  for (int i = 0; i < iters; ++i)
+    {
+      size_t inbytesleft = 1024;
+      size_t outbytesleft = 1024 * sizeof(wchar_t);
+      char* in = cbuf;
+      char* out = reinterpret_cast<char*>(wbuf);
+      iconv(cd, &in, &inbytesleft, &out, &outbytesleft);
+    }
+  stop_counters(time, resource);
+  iconv_close(cd);
+  report_performance(__FILE__, "C (iconv)", time, resource);
+  clear_counters(time, resource);
+
+  // C++ (codecvt)
+  locale loc;
+  const codecvt<wchar_t, char, mbstate_t>& cvt =
+    use_facet<codecvt<wchar_t, char, mbstate_t> >(loc);
+  mbstate_t state;
+  memset(&state, 0, sizeof(state));
+  start_counters(time, resource);
+  for (int i = 0; i < iters; ++i)
+    {
+      const char* from_next;
+      wchar_t* to_next;
+      cvt.in(state, cbuf, cbuf + 1024, from_next,
+            wbuf, wbuf + 1024, to_next);
+    }
+  stop_counters(time, resource);
+  report_performance(__FILE__, "C++ (codecvt)", time, resource);
+
+  return 0;
+}