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/********************* */
/*! \file ostream_util.h
** \verbatim
** Top contributors (to current version):
** Tim King, Mathias Preiner
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 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 */
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