Question

I have the following 2 functions in my code:

bool num()
{
    return 0;
}

void setDFS()
{
    int i = 0;
    project3::Graph<string, string> g1;

    std::for_each(g1.Vertice1.begin(), g1.Vertice1.end(),num);

}

What the function does is for each Vertice in vector Vertice1, it has to set its number to 0 for now. Once I start graph traversing, later on I would be incrementing the num to the traversed count.

While compiling, I am getting ”
error C2197: ‘bool (__cdecl *)(void)’ : too many arguments for call” error.

template <class VertexType, class EdgeType> class Vertex{
protected:
    VertexType vertice;
    EdgeType edge;

public:

};

std::vector<project3::Vertex<VertexType, EdgeType>*> Vertice1;

Answer 1

for_each algorithm receives a unary function which should have the following signature:

void function(T&);

where T is the type of element of g1.Vertice1 vector:

template <class VertexType, class EdgeType>
void num(project3::Vertex<VertexType, EdgeType>* v) {
  *v = 0; // <- Maybe v->set(0,0,0)
}