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  16 <h1>Tutorial</h1>
  17
  18   <p>Invoking the BoostCon tool:</p>
  19   <pre>
  20 $ clang -cc1 -boostcon t.cpp
  21 </pre>
  22
  23   <p>Teach the BoostCon action to identify and print C++ classes:</p>
  24   <pre>
  25 bool VisitCXXRecordDecl(CXXRecordDecl *D) {
  26   std::cout &lt;&lt; D-&gt;getNameAsString()
  27     &lt;&lt; '\n';
  28   return false;
  29 }
  30 </pre>
  31
  32   <p>Walk and print base classes of a class:</p>
  33   <pre>
  34 for(CXXRecordDecl::base_class_iterator
  35       B = D-&gt;bases_begin(), BEnd = D-&gt;bases_end();
  36       B != BEnd; ++B) {
  37   QualType BaseType = B-&gt;getType();
  38   std::cout &lt;&lt; "  " &lt;&lt; BaseType.getAsString()
  39     &lt;&lt; '\n';
  40 }
  41 </pre>
  42
  43   <p>Retrieve the C++ class declaration from a base type:</p>
  44   <pre>
  45 if (const RecordType *RTy
  46              = BaseType-&gt;getAs&lt;RecordType&gt;()) {
  47   RecordDecl *Base = RTy-&gt;getDecl();
  48   if (CXXRecordDecl *BaseCXX
  49         = dyn_cast&lt;CXXRecordDecl&gt;(Base)) {
  50
  51   }
  52 }
  53 </pre>
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