HelenOS sources

OPERATOR_NONE     409 uspace/app/calculator/calculator.c 		return OPERATOR_NONE;
OPERATOR_NONE     415 uspace/app/calculator/calculator.c 	return (get_operator(c) != OPERATOR_NONE);
OPERATOR_NONE     659 uspace/app/calculator/calculator.c 	operator_t last_operator = OPERATOR_NONE;