30 #if defined(TraceWriterFile_RECURSES) 
   31 #error Recursive header files inclusion detected in TraceWriterFile.h 
   32 #else // defined(TraceWriterFile_RECURSES) 
   34 #define TraceWriterFile_RECURSES 
   36 #if !defined TraceWriterFile_h 
   38 #define TraceWriterFile_h 
   44 #include "DGtal/base/TraceWriter.h" 
  151   operator<<( std::ostream & out, 
const TraceWriterFile & 
object );
 
  161 #endif // !defined TraceWriterFile_h 
  163 #undef TraceWriterFile_RECURSES 
  164 #endif // else defined(TraceWriterFile_RECURSES)