Question

am having a function as given below

int* foo() {
int temp;
return(&temp); //address of temp variable.

what is wrong in writing the same function as

int foo() {
    int temp;
    return(&temp); //address of temp variable.
    }

because the “&” operator returns the address of the memory location which is an integer.

Answer 1

Compiler doesn’t go by number logic. For it, &temp is a pointer and just temp is an integer and are different types even though both are a stream of numbers underneath.

Only a cast can convince a compiler of your logic.

Something like

return (int)&temp