c – 未处理的异常/访问冲突在Mutex示例中写入位置

Unhandled exception at 0x77b6308e in
Lab7.exe: 0xC0000005: Access violation
writing location 0x00000068.

我认为这与访问得分有关？ (全球双倍)

#include <windows.h>
#include <iostream>   
#include <process.h>

double score = 0.0; 


HANDLE threads[10];     

CRITICAL_SECTION score_mutex; 


unsigned int __stdcall MyThread(void *data)
{
    EnterCriticalSection(&score_mutex);
    score = score + 1.0; 
    LeaveCriticalSection(&score_mutex); 

    return 0;
}

int main()
{
    InitializeCriticalSection(&score_mutex); 

    for (int loop = 0; loop < 10; loop++)
    {

        threads[loop] = (HANDLE) _beginthreadex(NULL,MyThread,NULL,NULL); 
    }

    WaitForMultipleObjects(10,threads,INFINITE); 

    DeleteCriticalSection(&score_mutex); 

    std::cout << score; 

    while(true);

}

更新：

在将循环设置为1000而不是10的问题修复后,仍然出现错误,但是当我注释掉引用互斥量的代码时,错误没有发生.

CRITICAL_SECTION score_mutex; 
EnterCriticalSection(&score_mutex); 
LeaveCriticalSection(&score_mutex); 
InitializeCriticalSection(&score_mutex); 
DeleteCriticalSection(&score_mutex);

更新2

线程根据约定返回0(这是一个漫长的一周！)

我尝试加入互斥体相关的代码,并且程序将编译并运行正常(除了当然的两个竞争条件问题)与CRITICAL_SECTION,InitializeCriticalSection和DeleteCriticalSection全部添加回来.问题似乎是与EnterCriticalSection或LeaveCriticalSection,因为我添加它们时会重现该错误.