bool unreachable_code:1; /* Warn if the compiler detects that code will never be executed */
bool unused_function:1; /* Warn whenever a static function is declared but not defined or a non-inline static function is unused */
bool unused_label:1; /* Warn whenever a label is declared but not used */
bool unused_parameter:1; /* Warn whenever a function parameter is unused aside from its declaration */
bool unused_variable:1; /* Warn whenever a local variable or non-constant static variable is unused aside from its declaration */
bool unreachable_code:1; /* Warn if the compiler detects that code will never be executed */
bool unused_function:1; /* Warn whenever a static function is declared but not defined or a non-inline static function is unused */
bool unused_label:1; /* Warn whenever a label is declared but not used */
bool unused_parameter:1; /* Warn whenever a function parameter is unused aside from its declaration */
bool unused_variable:1; /* Warn whenever a local variable or non-constant static variable is unused aside from its declaration */