c++ - 错误: invalid conversion from ‘int*’ to ‘int’ [-fpermissive]

Question

出现错误:

error: invalid conversion from ‘int*’ to ‘int’ [-fpermissive] on g++

在以下代码上:

void* func(void *s)
{
    int i = 0;
    int self = (int *)s;
    printf("Thread Entered: %d\n", self);

    sm.lock(self);

    // Critical section (Only one thread
    // can enter here at a time)
    for (i=0; i<MAX; i++)
        ans++;

    sm.unlock(self);
}

Answer 1

您需要将 int self = (int *)s; 更改为 int self = *((int *)s); 或 int * self = (int *)s;。