Question

class student_record { public: int age; string name; double gpa; }; Implement a void function that has five formal parameters: a dynamic array of student_records, the count (number of student_records in the array), an integer, a string, and a double. The function will delete a student record in the dynamic array with age, name and gpa fields that match the age, name and gpa fields that are given in the formal parameters. Remember, to check to see if the dynamic array is empty because you cannot delete from an empty array.

Answer 1

Answer:

void delete_record(student_record *arr, int &size, int age, string name, double gpa) {

int index = -1;

if (arr != NULL && size > 0) {

for (int i = 0; i < size; ++i) {

if (arr[i].age == age && arr[i].name == name && arr[i].gpa == gpa) {

index = i;

break;

}

}

}

if (index != -1) {

for (int i = index; i < size - 1; ++i) {

arr[i] = arr[i + 1];

}

size--;

}

}