Johan Råde wrote:
But no one has been motivated to actually do this so far.
I'm working on such facets still for handling non-finite floating point numbers (infinity and NaN). I have code that works fine for float and double, but there are still some problems to be resolved for long double. And yes, the code has a facility for trapping infinity and NaN, if you so wish.
--Johan
Sorry, I should have mentioned this. I had thought that the idea of trapping the undefined behavior was abandoned for lack of interest. I'm glad to see I was wrong about this. I looks like you might want to include bools in this as well. As I recall, part of the problem with "trapping" was which exception to throw. Maybe this might be best handled the way other stream errors are handled - but setting a status flag and requiring that the user check it. As you can see, this is a recurring topic. I believe it will be helpful to serialization, lexical_cast and perhaps others. Also it may appeal to those of us programmers with slightly "paranoid" personalities who are convinced that everyone else is out to catch us. Robert Ramey