Richard Howells wrote:
Vladimir is right.
You've seen the problems and crashes that leaving type checking to the programmer causes. You need the compiler to do the checking for you.
I suggest using the same kind of scheme as the iostreams library. You might /.../ ...it will be (mostly) type safe - the type dangerous stuff is isolated to one place per output type - and you can extend it as you go. You'll likely need extra formatting stuff and that's where boost::format may help you.
I was thinking about something like: MyLogger::print( const boost::format& f ) and since all format's operator %() return a boost::format, I could with this single function reap all the types handled by it at once. I use a function rather than the operator << because they are actually template functions, with the parameter being the severity. So for _DEBUG versions, the MyLogger::print< DBG >() function instantiates to a proper call to print, while in _RELEASE versions it instantiates to an empty function. I just didn't see a clean way to do this with operators. Dan