Example

int main(int argc, char* argv[])
{
int *ptr = 0;
int var = 123;

ptr = (int *) var;

return 0;
}

Solution
Do not cast non pointer types to pointers.

int main(int argc, char* argv[])
{
int *ptr = 0;
int var = 123;

ptr = (int *) &var;


return 0;

}