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filename.hh
1 // Copyright (C) 2009, 2010, 2012 EPITA Research and Development
2 // Laboratory (LRDE)
3 //
4 // This file is part of Olena.
5 //
6 // Olena is free software: you can redistribute it and/or modify it under
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8 // Software Foundation, version 2 of the License.
9 //
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13 // General Public License for more details.
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16 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
17 //
18 // As a special exception, you may use this file as part of a free
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20 // instantiate templates or use macros or inline functions from this
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25 // executable file might be covered by the GNU General Public License.
26 
27 #ifndef MLN_DEBUG_FILENAME_HH
28 # define MLN_DEBUG_FILENAME_HH
29 
33 
34 
35 # include <string>
36 # include <sstream>
37 
38 
39 namespace mln
40 {
41 
42  namespace debug
43  {
44 
60  std::string
61  filename(const std::string& filename, int id);
62 
63 
64  namespace internal
65  {
66 
70  extern std::string filename_prefix;
71 
72  } // end of namespace mln::debug::internal
73 
74 
75 # ifndef MLN_INCLUDE_ONLY
76 
77 # ifndef MLN_WO_GLOBAL_VARS
78 
79  namespace internal
80  {
81 
82  std::string filename_prefix = "";
83 
84  } // end of namespace mln::debug::internal
85 
86 # endif // ! MLN_WO_GLOBAL_VARS
87 
88 
89  inline
90  std::string
91  filename(const std::string& filename, int id = -1)
92  {
93  static int file_id = 1;
94 
95  std::ostringstream os;
96 
97  if (! internal::filename_prefix.empty())
98  os << internal::filename_prefix << "_";
99 
100  if (id == -1)
101  {
102  if (file_id < 10)
103  os << "0";
104  if (file_id < 100)
105  os << "0";
106 
107  os << file_id++;
108  }
109  else
110  os << id;
111 
112  os << "_"
113  << filename;
114 
115  return os.str();
116  }
117 
118 
119 # endif // ! MLN_INCLUDE_ONLY
120 
121  } // end of namespace mln::debug
122 
123 } // end of namespace mln
124 
125 #endif // ! MLN_DEBUG_FILENAME_HH