[setf (+ (** c 2) (+ (* -5 c) 6)) 0] ?!
On Thu, Jun 27, 2019, 07:39 Alexander Burger <a...@software-lab.de> wrote: > Hi Bruno, > > > So, why is there no setf in picolisp? > > The answer is simple: It does not make sense. > > PicoLisp is a pure interpreter, and what 'setf' does is setting the value > of > what the expression *would* return. I'm not fit in CommonLisp, but > > (setf (car X) 7) > > means to set the CAR of the cell pointed at by X to 7. > > So a compiler analyzes the argument (car X), and compiles > > (set X 7) # in PicoLisp > > Similarly, > > (setf (get 'X 'a) 7) > > compiles to > > (put 'X 'a 7) > > > There is a 'setf' function in PicoLisp (meant as a joke) in > > misc/setf.l > > ☺/ A!ex > > -- > UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe >