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diff --git a/libstdc++-v3/testsuite/26_numerics/headers/cmath/c_math.cc b/libstdc++-v3/testsuite/26_numerics/headers/cmath/c_math.cc
new file mode 100644
index 00000000..b8cf6e5e
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/headers/cmath/c_math.cc
@@ -0,0 +1,70 @@
+// 1999-06-05
+// Gabriel Dos Reis <dosreis@cmla.ens-cachan.fr>
+
+// Copyright (C) 1999, 2000, 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 <cmath>
+#include <testsuite_hooks.h>
+
+// test compilation.
+int
+test01()
+{
+  float a = 1.f;
+  float b;
+  std::modf(a, &b);
+  return 0;
+}
+
+// need more extravagant checks than this, of course, but this used to core...
+int
+test02()
+{
+	std::sin(static_cast<float>(0));
+  return 0;
+}
+
+// as did this.
+int
+test03()
+{
+  double powtest __attribute__((unused)) = std::pow(2., 0);
+  return 0;
+}
+
+// this used to abort.
+int
+test04()
+{
+  bool test __attribute__((unused)) = true;
+  float x[2] = {1, 2};
+  float y = 3.4;
+  std::modf(y, &x[0]);
+  VERIFY(x[1] == 2);
+  return 0;
+}
+
+int 
+main()
+{
+  test01();
+  test02();
+  test03();
+  test04();
+  return 0;
+}