make nlopt_stop_xs consistent with nlopt_stop_x #258
Merged
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Like
nlopt_stop_x
, thenlopt_stop_xs
function should stop only if all of the variables are converged to with the given tolerance, not if any of them are. Reported by @aitap in #183 (comment)(It doesn't seem like this function is used anymore, so the bug shouldn't affect anyone. Still, it's better not to have this problem sitting in the code.)