Why OSVVM™? › Forums › OSVVM › ../packages/RandomPkg.vhd(92): Range 0 downto 1 is null › Reply To: ../packages/RandomPkg.vhd(92): Range 0 downto 1 is null
Actually technique. Note it is not illegal in the language to do this. The simulator just flags it because usually the code is wrong – in this case it is ok.
It is used on functions normal and poisson to make the exclude vector optional.
CoveragePkg use same technique so expect a null vector warning there too.