employee.lcl
employee.lcl
constant int maxEmployeeName;
constant int employeePrintSize;
typedef enum {MALE, FEMALE, gender_ANY} gender;
typedef enum {MGR, NONMGR, job_ANY} job;
typedef struct {int ssNum;
char name[maxEmployeeName];
int salary;
gender gen;
job j;} employee;
uses employeeConstants, sprint(employee, char[]);
void employee_sprint(char s[], employee e) {
requires maxIndex(s) >= employeePrintSize;
modifies s;
ensures isSprint(s', e)
/\ lenStr(s') = employeePrintSize;
}
bool employee_equal(employee *e1, employee *e2) {
ensures result = sameStr(e1->name^, e2->name^)
/\ (e1->ssNum^ = e2->ssNum^)
/\ (e1->salary^ = e2->salary^)
/\ (e1->gen^ = e2->gen^)
/\ (e1->j^ = e2->j^);
}
bool employee_setName(employee *e, char na[]) {
requires nullTerminated(na^);
modifies e->name;
ensures result = lenStr(na^) < maxEmployeeName
/\ (if result
then sameStr(e->name', na^)
/\ nullTerminated(e->name')
else e->name' = e->name^);
}
void employee_initMod(void) {
ensures true;
}
David Evans
University of Virginia, Computer Science
evans@cs.virginia.edu