引发异常-使用结构将访问冲突写入位置0x00000000

Question

我正在尝试从一个包含3个变量的结构复制到另一个结构，以便使用memcpy将信息包含在一个char数组中。

我之前遇到了无法处理我输入的数据的错误。因此，我试图将templist中的数据写入shoppinglist.MyList [1]

typedef struct matvara {
    char food[25];
    float ammount;
    char unit[10];
}matvara;

typedef struct shoplist {
    char grocery_list[9001];
    int length; //Currently not used        
}shoplist;
void add_food(matvara *typ, shoplist *MyList);

int main(void)

{
        struct shoplist MyList = { 0 };
    struct matvara typ = { 0 };
        add_food(&typ, &MyList, &counter);
}
void add_food(matvara *typ, shoplist *MyList)
{
     char templist[50]
     //....Filling struct with data and tranfer it to templist[50]
     //Works til I try to perform the memcpy.
     memcpy(MyList->grocery_list[1], templist, strlen(templist)); //This is where the error occurs.
}   

预期结果是memcpy成功，以便以后可以在杂货店清单[1]中访问它。

我收到的错误消息是：

Exception thrown at 0x0FC631BF (vcruntime140d.dll) in Project6.exe: 0xC0000005: Access violation writing location 0x00000000.