How do I cast a pointer to an int

Question

I\'m trying to store the value of an address in a non pointer int variable, when I try to convert it I get the compile error \"invalid conversion from \'int*\' to \'int\'\" this

Answer 1

I was able to use the C union statement to achieve what you were looking for. It will of course be compiler dependent, but it worked for me like you would presume it should (Linux, g++).

union {
    int i;
    void *p;
} mix;

mix.p = ip;
cout << mix.i << endl;

On my particular instance my int is 32 bit and the pointer is 48 bit. When assigning the pointer, the integer value i will represent the lowest 32 bit of the pointer.