example_dnn_nsga2 does not link

[sferes2]

example_dnn_nsga2 does not link

[Antymon]

As for the first problem: it seems to be gcc incompatibility, which can be solved by replacing all (2) std::powf calls with std::pow

As for the 2nd problem: it seems that the only purpose of the branch QD_nn 's existence is to counter this problem despite the fact that the example does not exist there. The solution is therefore to use changes of that branch. I locally merged it into master, but I understand there must have been a reason to keep things separate.

[jbmouret]

Hi

I will look into this, as example_dnn_nsga.cpp is still a work in progress. I am using clang and the powf probably comes from this.

[jbmouret]

(I probably did not see the other error as I did not compile in debug for a while)