From: ts <decoux@...>
Date: 2001-01-21T22:02:12+09:00
Subject: [ruby-talk:9650] Re: using procs and blocks from C

>>>>> "A" == Avi Bryant <avi@beta4.com> writes:

A> On Sun, 21 Jan 2001, ts wrote:

>> rb_scan_args(argc, argv, "12*&", ...);

A> Sorry... are you actually saying I can use that somehow when *calling* a
A> method with a block?

 If you put "&" at the end ruby will  do :

    if (*p == '&') {
        var = va_arg(vargs, VALUE*);
        if (rb_block_given_p()) {
            *var = rb_f_lambda();
        }
        else {
            *var = Qnil;
        }
        p++;

 This is exactly the same thing than when you write :

  def toto(a, b, &block)


Guy Decoux