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Attributes

#c++#attributes#nodiscard#fallthrough#maybe_unused

cppreference [[nodiscard]]/[[nodiscar("reason...")]] (CPP17) If a function declared nodiscard or returning an enumeration or class declared nodiscard is called without the return value being used, other than a cast to void, the compiler is encouraged to issue a warning. Appears in a function, enumeration, or class declaration. [[maybe_unused]] (CPP17) Suppresses warnings on unused entities. [[fallthrough]] (CPP17) Indicates that the fall-through from the previous case label is intentional and should not be diagnosed by a compiler that warns on fall-through.