Bob Bell wrote:
quoted here is really quite minor. The second thing that's apparent is that your ToUpper relies on global variables, whereas toupper_filter relies on function arguments, which in my mind is a more heavily-weighted concern than the complexity difference. My question is why you do you think relying on globals is a better approach? Some of your points have been motivated by the needs of novice C++ programmers; do you really think it is better to advocate a programming style that relies on global variables?
I was going to mention the global variables, but in fairness I think the four global streams have special status. If I could redesign the standard iostreams library without concern for backward compatibility, I'd change a number of things but I'm not sure I'd require users to write std::cout::instance() << "Hello World!\n"; I'm interested to know exactly what Christopher thinks is too complex about the filter concepts, since I'm sure others will share his view. I suspect it's the member templates and typedefs, but I'd like to hear it from him. Christopher? ;-) Jonathan