From: Tristin Davis <tristin.colby@...>
Date: 2008-07-03T21:48:55+09:00
Subject: Ruby C API Question

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I've been going over the Ruby API and I have a couple questions.

Why are the variables defined outside the block?  What effect does this have
on the variables?

static VALUE
fsdbm_s_open(argc, argv, klass)
    int argc;
    VALUE *argv;
    VALUE klass;
{
    VALUE obj = Data_Wrap_Struct(klass, 0, free_sdbm, 0);

    if (NIL_P(fsdbm_initialize(argc, argv, obj))) {
    return Qnil;
    }

    if (rb_block_given_p()) {
        return rb_ensure(rb_yield, obj, fsdbm_close, obj);
    }

    return obj;
}

I've always defined my variables inside a block.

static VALUE fsdbm_s_open(argc,argv,self) {
   int argc;
   VALUE *argv;
   VALUE self
   /* Etc */
}

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