From: Tim Hunter <sastph@...>
Date: 2006-08-02T21:50:10+09:00
Subject: Re: Static functions, extensions, linkage

Vincent Fourmond wrote:
> 
>   By the way, if you're interested to know which symbols are exported
> from a library, just do
> 
>   nm -D /usr/lib/library.so
> 
>   A look to that on my computer shows no references to flo_plus, only:
> nm -D /usr/lib/libruby1.8.so | grep flo
>                  U flock
>                  U floor
> 0000000000057ef0 T rb_float_new


In Ruby, the functions that are intended for use by extensions start 
with the prefix "rb_" and are declared in either ruby.h or intern.h. 
Since flo_plus doesn't start with "rb_" it isn't intended to be 
available to extensions.