This would be like the barrier function [1] for gradient based methods; which produces some challenges for those techniques. Do you know how this affects gradie

This would be like the barrier function [1] for gradient based methods; which produces some challenges for those techniques. Do you know how this affects gradient free techniques? [1] https://en.m.wikipedia.org/wiki/Barrier_function https://en.m.wikipedia.org/wiki/Barrier_function