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LeetCode报错及其解决方案
2022-07-27 12:52:00 【3的4次方】
LeetCode报错
文章目录
AddressSanitizer: xxx-buffer-overflow
通常 C/C++ 编译器 是对内存访问是不添加边界检查的。有时候优于代码错误,就有读或者写 操作了缓冲区外面的内存地址。这种错误一般都很难察觉。所以一旦编译出现 AddressSanitizer: stack-buffer-overflow 错误,首先就检查自己代码的边界条件是否没有控制住。
stack-buffer-overflow
举例:
int a[10];
a[11] = 10; // stack-buffer-overflow
a[-1] = 10; //stack-buffer-underflow
解决方法:检查程序中每一处循环(for或while循环)的条件是否正确。
head-buffer-overflow
举例:
int* x = malloc(10);
int n=x[11]; //heap-buffer-overflow
int n=x[-1]; //heap-buffer-underflow
heap-buffer-overflow
这种错误的产生原因一般是数组越界,可能初始化的数组不够长或者在程序中出现了下标越界的情况。
解决方法:检查代码中数组下标是否使用正确,排除越界的可能性。
runtime error: member access within null pointer
错误原因:试图使用空指针,很多时候是因为题目的特殊数据,比如一个空数组
解决方法:增加判断条件,并且判断的顺序不能改变。排除对空指针的引用。
runtime error: reference binding to null pointer of type ‘xxx’
翻译:运行时错误:引用绑定到类型为“xxx”的空指针
错误原因:
- 有for循环或者while时,没有考虑数组为空的情况
- 值和类型不对应,比如
int flag=true;
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