v3.0.x: mpi.h.in: use C++ static_cast<> where appropriate#6342

bwbarrett merged 1 commit intoopen-mpi:v3.0.xopen-mpi/ompi:v3.0.xfrom

jsquyres:pr/v3.0.x/make-mpi.h-a-little-friendlier-to-c++jsquyres/ompi:pr/v3.0.x/make-mpi.h-a-little-friendlier-to-c++Copy head branch name to clipboard