Fix for integer overflows (e.g. for histograms with very large bin contents). This fixes ROOT-9074
Fix for integer overflows (e.g. for histograms with very large bin contents). This fixes ROOT-9074

karies/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,karies/root,karies/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,root-mirror/root,olifre/root,karies/root,karies/root,karies/root,olifre/root,karies/root,karies/root,root-mirror/root,root-mirror/root,root-mirror/root,root-mirror/root,root-mirror/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,olifre/root,olifre/root