从动态结构数组中删除元素时的未定义行为

#include <stdio.h>
#include <stdlib.h>

typedef struct {
    int id;
    char name[20];
} Person;

void addPerson(Person **array, int *size, Person newPerson) {
    *size += 1;
    *array = realloc(*array, *size * sizeof(Person));
    (*array)[*size - 1] = newPerson;
}

void removePerson(Person **array, int *size, int index) {
    if (index < 0 || index >= *size) {
        printf("Index out of bounds!\n");
        return;
    }
    for (int i = index; i < *size - 1; i++) {
        (*array)[i] = (*array)[i + 1];
    }
    *size -= 1;
    *array = realloc(*array, *size * sizeof(Person));
}

int main() {
    Person *people = NULL;
    int size = 0;

    // 添加元素
    addPerson(&people, &size, (Person){1, "Alice"});
    addPerson(&people, &size, (Person){2, "Bob"});
    addPerson(&people, &size, (Person){3, "Charlie"});

    // 删除元素
    removePerson(&people, &size, 1);

    // 打印剩余元素
    for (int i = 0; i < size; i++) {
        printf("ID: %d, Name: %s\n", people[i].id, people[i].name);
    }

    // 释放内存
    free(people);
    return 0;
}