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32#define EVAL0(...) __VA_ARGS__
33#define EVAL1(...) EVAL0(EVAL0(EVAL0(__VA_ARGS__)))
34#define EVAL2(...) EVAL1(EVAL1(EVAL1(__VA_ARGS__)))
35#define EVAL3(...) EVAL2(EVAL2(EVAL2(__VA_ARGS__)))
36#define EVAL4(...) EVAL3(EVAL3(EVAL3(__VA_ARGS__)))
37#define EVAL(...) EVAL4(EVAL4(EVAL4(__VA_ARGS__)))
43#define MAP_GET_END2() 0, MAP_END
44#define MAP_GET_END1(...) MAP_GET_END2
45#define MAP_GET_END(...) MAP_GET_END1
46#define MAP_NEXT0(test, next, ...) next MAP_OUT
47#define MAP_NEXT1(test, next) MAP_NEXT0(test, next, 0)
48#define MAP_NEXT(test, next) MAP_NEXT1(MAP_GET_END test, next)
50#define MAP0(f, x, peek, ...) f(x) MAP_NEXT(peek, MAP1)(f, peek, __VA_ARGS__)
51#define MAP1(f, x, peek, ...) f(x) MAP_NEXT(peek, MAP0)(f, peek, __VA_ARGS__)
53#define MAP_LIST_NEXT1(test, next) MAP_NEXT0(test, MAP_COMMA next, 0)
54#define MAP_LIST_NEXT(test, next) MAP_LIST_NEXT1(MAP_GET_END test, next)
56#define MAP_LIST0(f, x, peek, ...) f(x) MAP_LIST_NEXT(peek, MAP_LIST1)(f, peek, __VA_ARGS__)
57#define MAP_LIST1(f, x, peek, ...) f(x) MAP_LIST_NEXT(peek, MAP_LIST0)(f, peek, __VA_ARGS__)
62#define MAP(f, ...) EVAL(MAP1(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
68#define MAP_LIST(f, ...) EVAL(MAP_LIST1(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
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