Method findLeaves

Core/Variational/expression.cpp:14–34

}

std::vector<var> expression::findLeaves(){
    std::vector<var> leaves;
    std::queue<var> q;
    q.push(root);

    while(!q.empty()){
        var v = q.front();
        if(v.getChildren().empty()){
            leaves.emplace_back(v);
        }
        else{
            std::vector<var> children = v.getChildren();
            for(const var& v : children)
                q.push(v);
        }
        q.pop();
    }
    std::vector<var> ans;
    std::copy(leaves.begin(), leaves.end(), std::back_inserter(ans));
    return ans;
}

std::vector<var> expression::findVariables() {
    std::vector<var> leaves;