initialize_copy(p1) public

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static VALUE
enumerator_init_copy(VALUE obj, VALUE orig)
{
    struct enumerator *ptr0, *ptr1;

    ptr0 = enumerator_ptr(orig);
    if (ptr0->fib) {
        /* Fibers cannot be copied */
        rb_raise(rb_eTypeError, "can't copy execution context");
    }

    Data_Get_Struct(obj, struct enumerator, ptr1);

    if (!ptr1) {
        rb_raise(rb_eArgError, "unallocated enumerator");
    }

    ptr1->obj  = ptr0->obj;
    ptr1->meth = ptr0->meth;
    ptr1->args = ptr0->args;
    ptr1->fib  = 0;

    return obj;
}
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