frozen?()
public
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/*
* call-seq:
* obj.frozen? => true or false
*
* Returns the freeze status of <i>obj</i>.
*
* a = [ "a", "b", "c" ]
* a.freeze
* a.frozen?
*/
static VALUE
rb_obj_frozen_p(obj)
VALUE obj;
{
if (OBJ_FROZEN(obj)) return Qtrue;
return Qfalse;
}