GStaticPrivate

A GStaticPrivate works almost like a GPrivate, but it has one significant advantage. It doesn't need to be created at run-time like a GPrivate, but can be defined at compile-time. This is similar to the difference between GMutex and GStaticMutex. Now look at our give_me_next_number() example with GStaticPrivate:

struct GStaticPrivate

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