#pragma once #include using u8 = uint8_t; using u16 = uint16_t; using u32 = uint32_t; using u64 = uint64_t; using usize = size_t; using i8 = int8_t; using i16 = int16_t; using i32 = int32_t; using i64 = int64_t; using isize = ssize_t; template constexpr bool test(T x, T y) { return (x & y) == y; }