[STL ] 如何casting list<struct Book> 為 (void*)

[littleboypis (littleboypis)]

如何casting list<struct Book> 為 (void*)

請問要如何正確的將 list<struct Book> casting 為 (void*) 呢？

我轉換時都會出現下述的error msg

error: invalid conversion from
       `void*(*)(std::list<Book, std::allocator<Book> >*)' to
`void*(*)(void*)'

error: initializing argument 3 of
       `int pthread_create(pthread_t*, const pthread_attr_t*,
void*(*)(void*), void*)'

似乎是因為casting沒成功的原因

麻煩各位幫我看一下，該怎麼casting，謝謝



底下是我的code

int main()
{
    list <struct Book> books;
    pthread_t t;
    pthread_create( &t, NULL, addbook, (void*) &books);
}

void *addbook(void* argc)
{
    list <struct Book> * book_list = (list<struct Book>*) argc;
    printf("book name = %s \n", ( book_list->back() ).name);
}

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