blob: e047caa17869b00ab985b5f251666c8cb08c038f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/********************* */
/*! \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 */
|
