From: Eric Hodel <drbrain@...7.net>
Date: 2007-08-14T18:31:50+09:00
Subject: Re: [C ext to Ruby] how to output a octal coded number ???

On Aug 14, 2007, at 01:49, unbewust wrote:

> i write a C extension to Ruby, some methods are dealing with octal
> number (bytes in english ?) for the file permission :
>
> ie something like that :
>
> 0777 or 0644  the first 0 (zero) meaning the following is a number
> coded in octal.
>
>
> that's OK for input of octal number if for example, from ruby the user
> write :
>
> this_file.perms = 0777  (then with the first 0)
>
> i get the right number
>
> however, for the time being, i'm returning, for the same value :
>
> 777 instead of 0777  when the user wants to read the perms,, then my
> question how to return within a C est to Ruby an integer coded in
> octal ???
>
> thought, at that time i'm usinbg INT2FIX (  )

The easiest way will probably be to use sprintf.  From C, use  
rb_f_sprintf.

--
Poor workers blame their tools. Good workers build better tools. The
best workers get their tools to do the work for them. -- Syndicate Wars