c - 访问c中的写入违规位置

Question

在旨在获取员工姓名和信息的函数中存在访问写入冲突。当我通过开关打开该功能时，它会询问员工的姓名，但是当我按 Enter 键时，我会收到错误代码。

Unhandled exception at 0x6559DBE9 (msvcr120d.dll) in Assignment4.exe: 0xC0000005: Access violation writing location 0x009A6858.

我认为是原因的代码

typedef struct person
{
    char emplyName[5][SIZE];
    float emplyHours[5];
    float emplyRate[5];
    float emplyGross[5];
    float emplyBase[5];
    float emplyOvrt[5];
    float emplyTax[5];
    float emplyNet[5];
    float emplyTotal[5];
}input;
void menu(void);

void editEmployees(input* emply);

void print(input* emply);

void employeeInfo(input* emply);

int main(void)
{
    struct person *payroll={""};
    int choice = 0;
    menu();
    scanf_s("%c", &choice,1);
    switch (choice){
    case '1':{
        employeeInfo(payroll);
        break;
    }
    case '2':{
        editEmployees(payroll);
        break;
    }
    case '3':{
        print(payroll);
        break;
    }
    case '4':{
        break;
    }
    default:
        printf("Invalid entry\n");
    }
    system("pause");
}




void employeeInfo(input *emply)
{
    int i = 0;
    for (i=0;i<5;i++) {
        printf("Enter employee name.\n");
        scanf_s("%s", &emply->emplyName[i]);
        printf("Enter employee hours.\n");
        scanf_s("%f", &emply->emplyHours[i]);
        printf("Enter Hourly rate.\n");
        scanf_s("%f", &emply->emplyRate[i]);
    } 
}

Answer 1

*emply 指针可能无效。它可以为空或指向随机位置。