c++ - Boost PropertyTree: check if child exists

Question

I'm trying to write an XML parser, parsing the XML file to a boost::property_tree and came upon this problem. How can I check (quickly) if a child of a certain property exists?

Obviously I could iterate over all children using BOOST_FOREACH - however, isn't there a better solution to this?

question from:https://stackoverflow.com/questions/7568607/boost-propertytree-check-if-child-exists

Answer 1

optional< const ptree& > child = node.get_child_optional( "possibly_missing_node" );
if( !child )
{
  // child node is missing
}