如何对同一数组索引下的结构成员进行排序？

#include <iostream>

struct ExampleStruct {
    int id;
    std::string name;
};

// 比较函数，按照id属性进行排序
int compareById(const void* a, const void* b) {
    ExampleStruct* s1 = (ExampleStruct*)a;
    ExampleStruct* s2 = (ExampleStruct*)b;
    return s1->id - s2->id;
}

int main() {
    ExampleStruct arr[] = {
        {3, "C"},
        {1, "A"},
        {2, "B"}
    };
    int size = sizeof(arr) / sizeof(arr[0]);

    // 排序
    qsort(arr, size, sizeof(arr[0]), compareById);

    // 输出排序后的结果
    for (int i = 0; i < size; i++) {
        std::cout << "id: " << arr[i].id << ", name: " << arr[i].name << std::endl;
    }

    return 0;
}