Many places used #define FOO ((unsigned int) 0x23) where a simpler
#define FOO 0x23u would have sufficed. This practice is overly
verbose and has the disadvantage that you can't say
#if FOO == BAR
#endif
because the extra "unsigned int" tokens choke cpp's little brain.
Migrate to the latter style to allow use in preprocessor statements.
The two are the same semantically anyway in a C context (at least for
the uses they are put to presently, C gurus can explain to me how they
differ).
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