Resplot cppcheck warnings
We check for
if ( xbins.size()==0 || ybins.size()==0 ) {
std::cerr << "Resplot::combine() bad limits for histogram: N xbins: " << xbins.size() << "\tN ybins: " << ybins.size() << std::endl;
return 0;
}
which is fine
but then propably we should access the entry at 0 after the check e.g if xbins.size()==0 the following could be out of bounds access
std::cout << "x: " << xbins[0] << " - " << xbins.back() << std::endl;
So move the access from before to after the check.