From: nobu.nokada@...
Date: 2004-07-16T06:49:56+09:00
Subject: Re: converting types

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