Few Dilemmas

help
,
1

original code: Original Code.txt - Google Drive
modded code: Modded code (heap to stack).txt - Google Drive
THE MODDED CODE DOESN’T RUN. Needs inspection.
i sought to convert declarations done using the ‘new’ keyword, in original code, to standard stack declarations.

3

Please format your code - the forum software has mangled it and it won’t compile! :slight_smile:

1 Like
4

please see now, brother. It will be easier now. Just copy n paste

1 Like
6

tell me what u get, bro :slight_smile:

7 
class Graph
{
    // ...
    list<int> *adj;
    // ...
};

Graph::Graph(int V)
{
    this->V = V;
    list<int> s[V];
    adj=s; // Taking pointer to local variable.
}

void Graph::addEdge(int v, int w)
{
    // Using pointer to local variable from expired stack frame - Undefined Behaviour.
    adj[v].push_back(w); // Add w to v’s list.
}
1 Like
8

yup, exactly, bro !
but what happens to the memory address (of expired list ) which got stored in adj?

9

i ran the debugger and found that the address was still stored in adj