intel's valarray operator-() acts in reverse, opposite results with g++ and icpc

Hi, something seems not right with the functioning of in intel's valarray implementation. I tried using both the previous compilers as well as the most recent 2017 version of icpc. For instance, when we compile with icpc, we find that 0.1 - 0.05 = -0.05, instead of 0.1-0.05 = 0.05. g++ works fine though. Please find attached an example C++ file, and the makefile. Note that the makefile has a .txt extension that needs to be removed, or copy paste its contents in the terminal.