MPE/iX Intrinsics Reference Manual (32650-90905)

Chapter 2 19
Intrinsic Use
2 Intrinsic Use
You invoke an intrinsic by calling it explicitly from within a program, subprogram, or
procedure. All system intrinsics are treated as external procedures by user programs and
the intrinsics mechanism facilitates the declaration.
To call an intrinsic, you must know the following information:
• The number of parameters and whether any are optional
• The data type of each parameter and whether parameters are passed by value or
reference
• The calling sequence or order of the parameters
• The functional return value, if applicable