4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
9 * Full author contact details are available in file CREDITS.
12 #ifndef DEBUG_STREAM_HPP
13 #define DEBUG_STREAM_HPP
17 #include <boost/test/detail/nullstream.hpp>
20 # define TEMPORARY_DEBUG_MACRO DEBUG
38 static bool match(type a, type b) {
39 return (b <= a || (b == ANY && a > NONE));
43 #ifdef TEMPORARY_DEBUG_MACRO
44 # define DEBUG TEMPORARY_DEBUG_MACRO
45 # undef TEMPORARY_DEBUG_MACRO
49 template <class dtrait,
51 class traits = std::char_traits<charT> >
52 class basic_debugstream : public std::basic_ostream<charT, traits> {
55 typedef typename debug::type Type;
58 : std::basic_ostream<charT, traits>(0), dt(debug::NONE)
61 /// Constructor, sets the debug level to t.
62 explicit basic_debugstream(std::basic_streambuf<charT, traits> * buf)
63 : std::basic_ostream<charT, traits>(buf), dt(debug::NONE)
66 /// Sets the debug level to t.
71 /// Returns the current debug level.
76 /// Returns true if t is part of the current debug level.
77 bool debugging(Type t = debug::ANY) const
79 if (debug::match(dt, t)) return true;
83 /** Returns the no-op stream if t is not part of the
84 current debug level otherwise the real debug stream
86 Use: dbgstream[Debug::INFO] << "Info!\n";
88 std::basic_ostream<charT, traits> & operator[](Type t) {
89 if (debug::match(dt, t))
94 /// The current debug level
97 boost::basic_onullstream<charT, traits> nullstream;
100 typedef basic_debugstream<debug_trait> debugstream;