Hi all,<div> I have got a problem when I used the use_empty() member function while I used a global variable. I erase all the instructions which will use a global variable. Then I called the use_empty() on that global variable. I got no empty because a constantexpr use the global variable. I wonder whether there is any way to erase the constantexpr which is useless to me but occupying the global variable.</div>
<div> best regard!</div><div> yours. Tsingray</div>