MitchCarroll

% A Guide to Rust Syntax

A very brief guide to Rust syntax. It assumes you are already familiar with programming concepts.

Assert macro

The assert! macro ends the program if the condition passed to it is not true:

fn main() {

MitchCarroll

(define bool-to-binary (lambda (n) (map (lambda (x) (if (equal? x #t) 1 0)) n)))
(define binary-to-bool (lambda (n) (map (lambda (x) (if (= x 1) #t #f)) n)))

(define binary
    (lambda (number bits)
        (if (= bits 0) '()
                (begin
                    (let* 
                        ((b (if (>= number (expt 2 (- bits 1))) 1 0))
                         (v (if (= b 1) (- number (expt 2 (- bits 1))) number)))

MitchCarroll

;; The following definition for amb, assert and other operators are from Teach Yourself Scheme in Fixnum Days by Dorai Sitaram.

(define amb-fail '())

(define initialize-amb-fail
  (lambda ()
    (set! amb-fail
      (lambda ()
        (error "amb tree exhausted")))))

MitchCarroll

(defun ! (n)
  (if (= n 0) 1
    (* n (! (- n 1)))))