Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_ostream / inserters_arithmetic / wchar_t / 4402.cc

diff --git a/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc
new file mode 100644 (file)
index 0000000..bf891fa
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc
@@ -0,0 +1,70 @@
+// Copyright (C) 2005, 2006, 2007, 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> // for swprintf
+#include <iostream>
+#include <iomanip>
+#include <sstream>
+#include <limits>
+#include <testsuite_hooks.h>
+
+void
+test02()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+
+  // make sure we can output a very long float
+  long double val = numeric_limits<long double>::max();
+  int prec = numeric_limits<long double>::digits10;
+
+  wostringstream os;
+  os.precision(prec);
+  os.setf(wios::scientific);
+  os << val;
+
+  wchar_t largebuf[512];
+  swprintf(largebuf, 512, L"%.*Le", prec, val);
+#ifdef TEST_NUMPUT_VERBOSE
+  cout << "expect: " << largebuf << endl;
+  cout << "result: " << os.str() << endl;
+#endif
+  VERIFY( os && os.str() == largebuf );
+
+  // Make sure we can output a long float in fixed format
+  // without seg-faulting (libstdc++/4402)
+  double val2 = numeric_limits<double>::max();
+
+  wostringstream os2;
+  os2.precision(3);
+  os2.setf(wios::fixed);
+  os2 << val2;
+
+  swprintf(largebuf, 512, L"%.*f", 3, val2);
+#ifdef TEST_NUMPUT_VERBOSE
+  cout << "expect: " << largebuf << endl;
+  cout << "result: " << os2.str() << endl;
+#endif
+  VERIFY( os2 && os2.str() == largebuf );
+}
+
+int 
+main()
+{
+  test02();
+  return 0;
+}