From: "Berger, Daniel" <Daniel.Berger@...>
Date: 2007-11-21T00:17:57+09:00
Subject: What is nil_plus?

Hi,

In object.c I see this:

#ifdef NIL_PLUS
static VALUE nil_plus(VALUE x, VALUE y)
{
    switch (TYPE(y)) {
      case T_NIL:
      case T_FIXNUM:
      case T_FLOAT:
      case T_BIGNUM:
      case T_STRING:
      case T_ARRAY:
	return y;
      default:
	rb_raise(rb_eTypeError, "tried to add %s(%s) to nil",
		 RSTRING(rb_inspect(y))->ptr,
		 rb_obj_classname(y));
    }
    /* not reached */
}
#endif

But I see no other reference to NIL_PLUS or nil_plus anywhere in the
source.

Can this be discarded?

Regards,

Dan


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