std-number-list-p | ![]() |
Predicate if the expression is a list and all elements are numbers.
Useful to detect points but a number-list is not necesserily a point. This predicate is used in STD-EQUALP
to apply a numerical tolerance with the comparison.
(std-number-list-p '(0.0 1.0 0)) => T
(std-number-list-p '(0)) => T (std-number-list-p (std-int-list 100)) => T
same as:
(std-every 'numberp expr)
expr: any valid lisp expression
T or nil.
None.
(std-require 'STDLIST)
Defined in STDLIST