> This semester I used function pointers in an assignment and later heard them described as “Quinn’s magic C voodoo”.

I still think I have to polish up on 'em:

  #include <stdio.h>
  #include <ctype.h>
  //
  int chk_arg(char *s, int (*f)(int)) {
    while(*s)
      if(!(f(*s)))
        return 1;
      else
        ++s;
    return 0;
  }
  //
  char *s[]= { "1048leet576", "numbers only pls\n" };
  if(chk_arg(*s, isdigit))
    printf(*(s+1));

> This was confusing - my classmates were juniors and seniors who were 3+ years into a computer science degree, yet many of them didn’t seem to have an understanding of how computers worked. They could write high-level code and analyze algorithms, but had never used malloc.

What the hell, CS students who haven't used malloc? I've got no formal background in CS, yesterday I wrote a binary search tree in C that passed valgrind.