Lintcode208 Assignment Operator Overloading (C++ Only) solution 题解
【题目描述】
Implement an assignment operator overloading method.
Make sure that:
The new data can be copied correctly
The old data can be deleted / free correctly.
We can assign like A = B = C
实现赋值运算符重载函数,确保:
新的数据可准确地被复制
旧的数据可准确地删除/释放
可进行A = B = C赋值
【题目链接】
www.lintcode.com/en/problem/assignment-operator-overloading-c-only/
【题目解析】
这题就是考c++中的overload。题目要求先delete A,再copy B中的data。那么首先检查A的data是不是已经等于B了,如果是,直接return;如果不是,先delete A的data,然后new一个新的char*,把B的data copy到A中去。
【参考答案】
www.jiuzhang.com/solutions/assignment-operator-overloading-c-only/
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