is it look at this page <http://clang.llvm.org/doxygen/classclang_1_1CallExpr.html> and How can I judge a argument that matches the num[i] node?I look forward your help. -- View this message in context: http://clang-developers.42468.n3.nabble.com/the-farther-node-in-AST-tp4028384p4028386.html Sent from the Clang Developers mailing list archive at Nabble.com.