For C++ it's Visual Studio and gcc, both are far ahead of the standard with experimental technical specifications: gcc has concepts, transactional memory, and special math, msvc has modules, coroutines, and parallelism (and concepts are promised soon), both have filesystem. Clang has none of that at the moment.
The 12-inch ball is the standard for slow-pitch softball. The ball is a little softer than the 11-inch version. The softness and its size, which makes it slightly harder to throw than a smaller ball, slows the speed of the game just a little bit compared to a game using an 11-inch ball. The fielders wear gloves.
Girls Softball Divisions. Tee Ball Softball is for girls 4-5 years old (with a local option for 6- and/or 7-year-olds) who want to learn the fundamentals of hitting and fielding. In Tee Ball Softball, players hit a ball off a batting tee. Rules of the game may be varied to accommodate the need for teaching.