潜伏博士

#CPP // MAP(f, a, b, c...) // -> f(a) , f(b) , f(c) ... #define MAP(macro, ...) __VA_OPT__(EXPAND(MAP_IMPL(macro, __VA_ARGS__))) #define MAP_IMPL_AGAIN() MAP_IMPL #define MAP_IMPL(macro, first, ...) \ macro(first) __VA_OPT__(, MAP_IMPL_AGAIN PARENS (macro…