C++ Returning Pointers/References
- by m00st
I have a fairly good understanding of the dereferencing operator, the address of operator, and pointers in general.
I however get confused when I see stuff such as this:
int* returnA() {
int *j = &a;
return j;
}
int* returnB() {
return &b;
}
int& returnC() {
return c;
}
int& returnC2() {
int *d = &c;
return *d;
}
In returnA() I'm asking to return a pointer; just to clarify this works because j is a pointer?
In returnB() I'm asking to return a pointer; since a pointer points to an address, the reason why returnB() works is because I'm returning &b?
In returnC() I'm asking for an address of int to be returned. When I return c is the & operator automatically "appended" c?
In returnC2() I'm asking again for an address of int to be returned. Does *d work because pointers point to an address?
Assume a, b, c are initialized as integers.
Can someone validate if I am correct with all four of my questions?
