2.38.10 Accessors

Function: comparator-type-test-procedure comparator

Function: comparator-test-type-procedure comparator

Return the type test predicate of comparator.

Function: comparator-check-type-procedure comparator

Function: comparator-type-check-procedure comparator

Return the type check procedure of comparator. The returned procedure can be called with one or two arguments:

• When called with one argument obj: it invokes the type test predicate of comparator on obj and returns #t if it returns #t; otherwise it signals an error.
• When called with two arguments obj and who: it invokes the type test predicate of comparator on obj and returns #t if it returns #t; otherwise it signals an error. The optional argument who must be compatible with the argument of make-who-condition and it is used to raise a descriptive exception when obj does not match the comparator.

NOTE This procedure is a Vicare extension.

Function: comparator-equality-predicate comparator

Return the equality predicate of comparator.

Function: comparator-comparison-procedure comparator

Return the comparison procedure of comparator.

Function: comparator-hash-function comparator

Return the hash function of comparator.