carld

#lang racket

; host eval implementation
((lambda (e env)
   ((lambda (eval apply)
      (eval eval apply e env)) ; call eval
    (lambda (eval^ apply^ e env) ; define eval
      ;(printf "ENV: ~a~%" env)
      (printf "EXP: ~a~%" e)
      (if (symbol? e)

carld

If 2FA is enabled for gmail:

1) Create an App password under Google, My Account, Sign-in and Security, App passwords
2) Copy the generated password before it disappears

In Emacs:

1) C-x m    ; compose a new email in Emacs, use C-n and C-p to navigate between fields
2) C-c C-c  ; send email
3) smtp     ; select method of sending

carld

#lang racket

(define (token)
  (let [(c (read-char))]
    ;(printf "DEBUG: ~s~%" c)
     c))

(define (whitespace? ch)
  (case ch
    ((#\space #\tab #\newline #\return)  #t)

carld

    /* match: search for regexp anywhere in text */
    int match(char *regexp, char *text)
    {
        if (regexp[0] == '^')
            return matchhere(regexp+1, text);
        do {    /* must look even if string is empty */
            if (matchhere(regexp, text))
                return 1;
        } while (*text++ != '\0');
        return 0;

carld

chez --script c.scm > c.s
nasm -f macho c.s
ld c.o
./a.out
echo $?

carld

(define emit printf)

(define (compile exp)
  (cond
    [(fixnum? exp)   (emit "push ~a~%" exp)]
    [(eq? '+ (car exp))    (begin
                              (compile (cadr exp))
                              (compile (caddr exp))
                              (emit "pop eax~%")
                              (emit "pop ebx~%")

carld

A lot of these are outright stolen from Edward O'Campo-Gooding's list of questions. I really like his list.

I'm having some trouble paring this down to a manageable list of questions -- I realistically want to know all of these things before starting to work at a company, but it's a lot to ask all at once. My current game plan is to pick 6 before an interview and ask those.

I'd love comments and suggestions about any of these.

I've found questions like "do you have smart people? Can I learn a lot at your company?" to be basically totally useless -- everybody will say "yeah, definitely!" and it's hard to learn anything from them. So I'm trying to make all of these questions pretty concrete -- if a team doesn't have an issue tracker, they don't have an issue tracker.

I'm also mostly not asking about principles, but the way things are -- not "do you think code review is important?", but "Does all code get reviewed?".

carld

(define-syntax section
  (syntax-rules ()
    [(_ type (instruction ...) ... )
     
     (let-syntax ([b (syntax-rules ()
                       [(_ i)  (printf "~s~%" 'i )]
                       [(_ i op1)  (printf "~s ~s~%" 'i 'op1)]
                       [(_ i op1 op2)  (printf "~s ~s, ~s~%" 'i 'op1 'op2)])])
       (begin
         (printf "~s ~s~%" 'section 'type)

carld

(define (float->hex fl)
  (string-append "0x"
                 (with-output-to-string
                   (lambda ()
                     (write-ieee-float32 fl
                                         (make-output-port
                                          (lambda (m . args)
                                            (case m
                                              ((write-char)
                                               (format #t "~X" (char->integer (car args)))))) (make-string 0))

carld

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>

typedef int (*factorial_func)(int);

#define X86_64_CALLING_CONVENTION 1