Giving a parameter a default value.

src/node.hpp

@@ -31,6 +31,6 @@ namespace Sass {
     Node(Node_Type _type, Token& _token);
     void push_child(const Node& node);
     void push_opt_child(const Node& node);
-    void dump(unsigned int depth);
+    void dump(unsigned int depth = 0);
   };
 }
\ No newline at end of file

src/unit-test-document.cpp

@@ -52,7 +52,7 @@ int main(int argc, char* argv[]) {
     int j = doc.statements.size();
     printf("%d\n", j);
     for (i = 0; i < j; ++i) {
-      doc.statements[i].dump(0);
+      doc.statements[i].dump();
     }
   }