From: Charles Mills <cmills@...>
Date: 2004-07-16T06:57:23+09:00
Subject: Re: converting types


On Jul 15, 2004, at 2:49 PM, nobu.nokada@softhome.net wrote:

> Hi,
>
> At Fri, 16 Jul 2004 06:37:09 +0900,
> Charles Mills wrote in [ruby-talk:106579]:
>> For example I want to use a type as an integer only if it has a
>> "to_int" method or is already a Fixnum or Bignum, otherwise raise an
>> error.  I was hoping to do the same thing using "to_str" for Strings
>> and "to_ary" for Arrays.   The rb_String() function will turn most
>> objects into Strings (Files for example) and in those cases I want my
>> code to raise an error.
>
> There's StringValue() for String, and rb_convert_type() for
> generic types.  Note that StringValue() requires lvalue as the
> argument.
>
> -- 
> Nobu Nakada
>
Thanks!
-Charlie