Hi Aaron, In typical C/C++ files, header files should not generate any bytes of output. Declarations are okay, instantiated definitions are not. From Stroustrup's C++PL section 9.2.1 As a rule of thumb, a header may contain: + named namespaces + type definitions + template declarations + template definitions + function declarations + inline function definitions + data declarations + constant defintions + enumerations + name declarations (forward declarations) + include directives + macro definitions + conditional compilation directives + comments Conversely, a header should never contain: + ordinary function definitions + data definitions + aggregate definitions + unnamed namespaces + exported template definitions HTH, --Eljay
