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fortran .HLP

%DESCR

%DESCR (arg) Forces an actual argument in a CALL statement or function reference to be passed by descriptor: the address of a descriptor of the argument is passed to the subprogram. By default, Fortran passes all character values by descriptor.

%LOC

%LOC (arg) Returns the actual storage address of a data element. The argument can be any data value. The result is an INTEGER*4 data type. In the case of global symbols, %LOC returns the value of the symbol rather than its address.

The LOC intrinsic serves the same purpose as the %LOC built-in function

%REF

%REF (arg) Forces an actual argument in a CALL statement or function reference to be passed by reference: the address of the argument is passed to the subprogram. By default, Fortran passes all numeric values by reference.

%VAL

%VAL (arg) Forces an actual argument in a CALL statement or function reference to be passed by value: the actual value of the argument is passed to the subprogram. The argument must be 32 bits in size or less. If the argument is less than 32 bits in size, it is sign-extended to that size.