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procedure+: make-primitive-procedure name [arity]
Name must be a symbol. Arity must be an exact non-negative
integer, -1
, #f
, or #t
; if not supplied it defaults
to #f
. Returns the primitive procedure called name. May
perform further actions depending on arity:
#f
#t
#f
.
-1
means it
accepts any number of arguments.
procedure+: primitive-procedure-name primitive-procedure
Returns the name of primitive-procedure, a symbol.
(primitive-procedure-name car) => car
procedure+: implemented-primitive-procedure? primitive-procedure
Returns #t
if primitive-procedure is implemented; otherwise
returns #f
. Useful because the code that implements a particular
primitive procedure is not necessarily linked into the executable Scheme
program.
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