判断野指针，无效指针

Posted 2020-08-10

 

该方法仅适用于windows

 1 int is_invalid_ptr(void* memory_pointer)
 2 {
 3     if (NULL == memory_pointer) { 
 4         return 1; 
 5     }
 6 
 7     __try {
 8         return *((int*)memory_pointer) ? 0 : 0;
 9     }
10     __except (1) {
11         return 1; /** exception_code(); STATUS_ACCESS_VIOLATION*/
12     }
13 }