C++ General Question

[fbhkhan]

In the following code what do this line mean? p = (int *) 10;

int j = 5;
int *p = &j;
int &k = j;
p = (int *) 10;
    cout << " j = " << j << " K = " << k << " *p = " << *p << endl;

[long double main]

It assigns to the pointer p the memory address "10".

So line 5 (where you have *p) will try to access the value stored in memory address 10, which could do all sorts of crazy things including (but not limited to): crashing, producing weird output, screwing over the rest of your program, killing your neighbor's dog (or Schrödinger's cat), and/or causing the Sun to go supernova (?!). (Okay, maybe not the last couple of things, but you get the point)

So in short, don't do it.