Returns the address of X that can then be used to define an integer POINTER.
Inquiry function
The result is of type INTEGER(4) in 32-bit mode and of type INTEGER(8) in 64-bit mode.
The result is the address of the data object, or, if X is a pointer, the address of the associated target. The result is undefined if the argument is not valid.
INTEGER A,B POINTER (P,I) P=LOC(A) P=LOC(B) END