本文介绍了未初始化指针和空指针的区别的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
空指针和未初始化指针有什么区别吗?这个问题是在一次采访中被问到的.你能解释一下它们之间的区别吗?
Is there any difference between null pointer and uninitialized pointer?This question was asked in one of the interviews.Could you please explain the difference that they have?
推荐答案
取一个未初始化的指针:
Take an uninitialized pointer:
int* ptr;//points to any location in memory
取一个空指针:
int* ptr = NULL;//normally points to 0x0 (0)
如果取消引用，两者都会导致未定义的行为.NULL 通常定义为 0.
Both would cause undefined behaviour if dereferenced. NULL is often defined as 0.
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