From: Tim Hunter <cyclists@...>
Date: 2004-09-16T07:34:51+09:00
Subject: Re: rb_struct_each_pair

Kevin Howe wrote:

> Hi, I'm toying with ruby 1.8.2 C extensions and am trying to use
> rb_struct_each_pair:
> 
>
http://www.eng.cse.dmu.ac.uk/~hgs/ruby/rubycvsdocs/classes/Struct.html#M001234
> 
> but am getting an "undeclared identifier" error. Is this function not
> included in 1.8.2?

It's not defined in any version of Ruby that I have available (1.6.7, 1.6.8,
1.8.1, 1.8.2 preview1).

Is it possible you want rb_struct_each instead?

/*
 *  call-seq:
 *     struct.each {|obj| block }  => struct
 *  
 *  Calls <i>block</i> once for each instance variable, passing the
 *  value as a parameter.
 *     
 *     Customer = Struct.new(:name, :address, :zip)
 *     joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
 *     joe.each {|x| puts(x) }
 *     
 *  <em>produces:</em>
 *     
 *     Joe Smith
 *     123 Maple, Anytown NC
 *     12345
 */