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.
Typically, a veteran softball outfielder feels comfortable with a glove that extends 3 inches but will struggle with a bigger glove. You can't catch the ball if you can't control the glove. Remember that a first baseman's mitt in softball is very similar to its counterpart in baseball. The first baseman's mitt in softball should be no more than an inch or so bigger than the first baseman's mitt in baseball.