flower/dstream.hh

   1 // debug_stream
   2
   3 #ifndef DSTREAM_HH
   4 #define DSTREAM_HH
   5
   6 #include "string.hh"
   7
   8 const char eol= '\n';
   9
  10 template<class K,class V>
  11 struct Assoc;
  12
  13 /// debug stream
  14 class Dstream
  15 {
  16     ostream *os;
  17     int indentlvl;
  18     bool local_silence;
  19     String classname;
  20
  21     Assoc<String, bool> *silent;
  22 public:
  23
  24     bool silence(String);
  25
  26     Dstream(ostream *r, const char  * rcfile);
  27     /**
  28       if rcfile == 0, then do not read any rc file
  29       */
  30
  31     virtual ~Dstream();
  32     Dstream &identify_as(String s);
  33
  34     Dstream &operator << (String s);
  35 };
  36  /**
  37    a class for providing debug output of nested structures,
  38    with indents according to \{\}()[].
  39
  40    One can turn on and off specific messages using the Assoc silent.
  41    This can be done automatically:
  42
  43    #define DEBUG  dstream_.identify_as(__PRETTY_FUNCTION__)
  44
  45    DEBUG << "a message\n";
  46
  47    Init for the class names which should be silent can be given in a rc file.
  48
  49   */
  50 #endif
  51