从Rust中另一个DLL中的DLL访问静态固定大小数组的元素

use lazy_static::lazy_static;

lazy_static! {
    static ref MY_ARRAY: [i32; 5] = [1, 2, 3, 4, 5];
}

#[no_mangle]
pub extern "C" fn get_array_element(index: usize) -> i32 {
    MY_ARRAY[index]
}

$ rustc --crate-type cdylib my_lib.rs

#include <stdio.h>
#include <dlfcn.h>

typedef int (*GetArrayElementFn)(size_t);

int main() {
    void* handle = dlopen("path/to/my_lib.dll", RTLD_LAZY);
    if (handle == NULL) {
        printf("Failed to load the Rust DLL.\n");
        return 1;
    }

    GetArrayElementFn get_array_element = (GetArrayElementFn)dlsym(handle, "get_array_element");
    if (get_array_element == NULL) {
        printf("Failed to find the 'get_array_element' function.\n");
        dlclose(handle);
        return 1;
    }

    int element = get_array_element(2);
    printf("Element at index 2: %d\n", element);

    dlclose(handle);
    return 0;
}