1 /*! \file io_errorStream.h
2 \brief Providing a costume stream
3
4 Revision history:
5 --------------------------------------------------
6
7 Revised by Christian Power April 2016
8 Revised by Christian Power February 2016
9 Originally written by Christian Power
10 (power22c@gmail.com) Januar 2016
11
12 Idea
13 --------------------------------------------------
14 Provides a wrapper class for fstream, that is compatible with the
15 Esfem::Io::Parameter class.
16
17 \author Christian Power
18 \date 25. April 2016
19 \copyright Copyright (c) 2016 Christian Power. All rights reserved.
20 */
21
22 #ifndef IO_ERRORSTREAM_H
23 #define IO_ERRORSTREAM_H
24
25 #include <fstream>
26 #include "esfem_fwd.h"
27
28 namespace Esfem{
29 namespace Io{
30 //! Wrapper class for a std::stream
31 class Error_stream{
32 public:
33 //! `filename` will be `Io::Parameter::error_log`
34 explicit Error_stream(const Parameter&);
35 //! `filename` will be `Io::Parameter::error_log + suffix`
36 explicit Error_stream(const std::string& suffix, const Parameter&);
37
38 // ----------------------------------------------------------------------
39 // Providing 'endl', 'scientific' and 'defaultfloat'
40 //! Auxiliary typedef
41 using Basic_ostream = std::basic_ostream<char, std::char_traits<char> >;
42 //! The type of std::endl, std::float, etc.
43 using StdManip = Basic_ostream& (*)(Basic_ostream&);
44 //! Now you can use std::endl, etc.
45 Error_stream& operator<<(StdManip);
46
47 //! Stream type `T` out
48 template<typename T>
49 Error_stream& operator<<(const T&);
50 //! Close the stream
51 Error_stream& close();
52 private:
53 //! The actual stream implementation
54 std::ofstream ofs;
55
56 //! Constructor helper function
57 explicit Error_stream(const std::string& fname);
58 // filename is fname
59 };
60
61 // ----------------------------------------------------------------------
62 // Template implementation
63 template<typename T>
64 Error_stream& Error_stream::operator<<(const T& t){
65 ofs << t;
66 return *this;
67 }
68 }
69 }
70
71 #endif // IO_ERRORSTREAM_H
72
73 /*! Log:
74 */