A chance to brush off my C :) 

// inc_c - http://perlmonks.org/?node_id=1128230

#include <stdlib.h>
#include <stdio.h>

#define M 5 // place
#define N 3 // number of elements wanted

static int place[N];

int
step(void)
  {
  for(int i = 0; i < N; i++)
    {
    if(i < N - 1 ? place[i] < place[i + 1] - 1 : place[i] < M - 1 )
      {
      place[i]++;
      for(int j = i - 1; j >= 0; j--) place[j] -= place[0];
      return 1;
      }
    }
  return 0;
  }

int
main(int argc, char **argv)
  {
  int i;
  int more = 1;

  for(i = 0; i < N; i++) place[i] = i;

  while(more)
    {
    for(i = 0; i < N; i++) printf(" %d", place[i]);
    putchar('\n');
    more = step();
    }

  exit(0);
  }

[download]

In reply to Re^3: Odometer pattern iterator (in C). by Anonymous Monk
in thread Odometer pattern iterator (in C). (Updated.) by BrowserUk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.