Two items whose USAGE is PROCEDURE-POINTER can be compared.
- Identifier-1 and identifier-2 refer to items with USAGE IS PROCEDURE-POINTER.
- Only one operand in the comparison can be the figurative constant NULL.
- The operands are equal if the two addresses are the same, otherwise they are unequal.
- This type of relation condition is allowed in IF, PERFORM, EVALUATE and SEARCH (Format 1) statements. It is not allowed in
SEARCH (Format 2) statements (SEARCH ALL) because no meaningful ordering can be applied to pointer data items.