如何在pthread函数中正确传递数组

#include <pthread.h>
#include <iostream>

void* threadFunc(void* arg) {
    int* arr = static_cast<int*>(arg);
    // 使用arr指针来访问和操作数组
    // 例如：arr[0], arr[1], ...
    return nullptr;
}

int main() {
    int arr[5] = {1, 2, 3, 4, 5};

    pthread_t tid;
    pthread_create(&tid, nullptr, threadFunc, static_cast<void*>(arr));
    pthread_join(tid, nullptr);

    return 0;
}

#include <pthread.h>
#include <iostream>

struct ThreadData {
    int* arr;
    int len;
};

void* threadFunc(void* arg) {
    ThreadData* data = static_cast<ThreadData*>(arg);
    int* arr = data->arr;
    int len = data->len;
    // 使用arr指针和len字段来访问和操作数组
    // 例如：arr[0], arr[1], ..., len
    return nullptr;
}

int main() {
    int arr[5] = {1, 2, 3, 4, 5};

    ThreadData data;
    data.arr = arr;
    data.len = 5;

    pthread_t tid;
    pthread_create(&tid, nullptr, threadFunc, static_cast<void*>(&data));
    pthread_join(tid, nullptr);

    return 0;
}