Hi mahmoodn, > Sorry, I did not fully understand. I think mean that number of translation > units = number of cpp files. > Right? More-or-less. If a Fred.cpp does a #include "Barney.cpp", then Barney.cpp will be in the same translation unit as Fred.cpp. If Wilma.cpp is not compiled, then there is no Wilma translation unit. Sincerely, --Eljay
