C ++ _（node）-> Execute（）中的下划线的用途是什么

Question

The underscore, in this case, is not part of the identifier. The code I'm seeing looks like

for(auto nodeItr = myNodes.begin(); nodeItr != myNodes.end(); nodeItr++) {
    auto node = *nodeItr;
    int status = _(node)->Execute();
    if (status != 0) return -1;
}

Answer 1

There is a series of wrapper functions declared like NodePtrWrapper* _(...)

Feeling stupid, but appreciate the responses...