我有一个struct employee
比较器和main
:
#define MAX_SIZE 20
typedef struct Employee{
char name[MAX_SIZE];
int salary;
int experience;
} employee_t;
void main()
{
int i;
employee_t** employeeArray = (employee_t**)malloc(sizeof(employee_t*)*5);
employee_t nonExstingEmployee = {"v"};
for(i=0 ; i < 2 ; i++)
{
employeeArray[i] = (employee_t*)malloc(sizeof(employee_t)); //alocate each employee
readEmployee( employeeArray[i] );
}
puts("beforesort\n");
for(i=0; i <2 ; i++)
{
printEmployee(employeeArray[i]);
}
puts("after salary sort\n");
qsort(employeeArray, 2, sizeof(employee_t*), compareEmployeesBySalary);
for(i=0; i < 2 ; i++)
printEmployee( employeeArray[i] );
if (bsearch(&nonExstingEmployee, employeeArray, MAX_SIZE, sizeof(employee_t), compareEmployeesByName) == 0)
puts("employee found");
else
puts("no employee found");
}
int compareEmployeesBySalary(const void* a, const void* b){
employee_t* one = *(employee_t **)a;
employee_t* two = *(employee_t **)b;
if (one->salary == two->salary)
return 0;
else if (one->salary > two->salary)
return 1;
else
return -1;
}
int compareEmployeesByName(const void* a,const void* b)
{
employee_t* one = *(employee_t**)a;
employee_t* two = *(employee_t**)b;
if(strcmp(&one->name, &two->name) == 0)
{
return 1;
}
return 0;
}
我需要使用bsearch
比较名称(与数组中不存在的某些员工),qsort
无论我如何初始化员工,我的函数都有效(按薪水比较)因为bsearch
它总是说它不存在(我正在尝试测试这个现有员工优先),
我应该如何初始化我的员工(或者我应该改变什么?)
[评论更新:]
这是我的readEmployee()
:
void readEmployee(employee_t *emp)
{
fflush(stdin);
printf("Please enter Employee's name:(max 19 chars)");
scanf("%s", emp->name);
fflush(stdin);
printf("Please enter Employee's salary:");
scanf("%d", &(emp->salary));
fflush(stdin);
printf("Please enter Employee's experience:");
scanf("%d", &(emp->experience));
}
我正在比较nonExstingEmployee
(存在于数组中进行测试)和我的employeeArray
.