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diff --git a/src/util/ostream_util.h b/src/util/ostream_util.h
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+/*********************                                                        */
+/*! \file ostream_util.h
+ ** \verbatim
+ ** Top contributors (to current version):
+ **   Tim King
+ ** This file is part of the CVC4 project.
+ ** Copyright (c) 2009-2017 by the authors listed in the file AUTHORS
+ ** in the top-level source directory) and their institutional affiliations.
+ ** All rights reserved.  See the file COPYING in the top-level source
+ ** directory for licensing information.\endverbatim
+ **
+ ** \brief Utilities for using ostreams.
+ **
+ ** Utilities for using ostreams.
+ **/
+
+#include "cvc4_private.h"
+
+#ifndef __CVC4__UTIL__OSTREAM_UTIL_H
+#define __CVC4__UTIL__OSTREAM_UTIL_H
+
+#include <ios>
+#include <ostream>
+
+namespace CVC4 {
+
+// Saves the formatting of an ostream and restores the previous settings on
+// destruction. Example usage:
+//   void Foo::Print(std::ostream& out) {
+//     StreamFormatScope format_scope(out);
+//     out << std::setprecision(6) << bar();
+//   }
+class StreamFormatScope
+{
+ public:
+  // `out` must outlive StreamFormatScope.
+  StreamFormatScope(std::ostream& out);
+  ~StreamFormatScope();
+
+ private:
+  // Does not own the memory of d_out
+  std::ostream& d_out;
+  std::ios_base::fmtflags d_format_flags;
+  std::streamsize d_precision;
+};
+
+}  // namespace CVC4
+
+#endif /* __CVC4__UTIL__OSTREAM_UTIL_H */