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.
Mizuno Slowpitch Softball Bats. Worth Slowpitch Softball Bats. Slow pitch Softball Bats are most commonly made 34 inches in length, are made from carbon fiber composite materials, each softball bat weighing between 26 and 30 ounces, with softball bat diameters of 2.25 inches to 2.75 inches.