Think about C++ classes and files. If you have 3 classes like A, B and C, it is common practice to have them defined in 3 header files in particular if they are complex classes, even if both B and C inherits from A. And hardly anyone would try to put the 3 of them in a single header file, even though C++ completely support having an arbitrary number of classes in a single file.
If I have a significant class that is best implemented with a number of other insignificant, one-off classes, I am not going to give each one their own file. The QRegExp class implementation (5.7) is a good example. The file qregexp.cc contains 10 helper structs. (struct is the lazy man's class.) Development of QRegExp would not have benefited from giving each one it's on header and source file. Bill _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
