1.Char 5: fatal error: control may reach end of non-void function [-Wreturn-type] }

2.AddressSanitizer: heap-buffer-overflow on address 0x602000000040 at pc 0x000000406b5e bp 0x7ffc15cc0320 sp 0x7ffc15cc0318

3.error: bad operand types for binary operator ‘&’

4.terminate called after throwing an instance of ‘std::out_of_range’ what(): basic_string::substr

5.AddressSanitizer:DEADLYSIGNAL

6.member access within null pointer of type ‘TreeNode’

1.Char 5: fatal error: control may reach end of non-void function [-Wreturn-type] }

这类报错的含义是：没有考虑所有可能的返回值情况

什么意思呢，比如我们的Java程序的一个方法：

public int fun(int a) { if(a>0) return 1 else if(a<0) return -1; }

那么如果我们的a==0那么就没有返回值，所以本方法没有考虑返回值情况

2.AddressSanitizer: heap-buffer-overflow on address 0x602000000040 at pc 0x000000406b5e bp 0x7ffc15cc0320 sp 0x7ffc15cc0318

本类报错意思是：检查了是否存在内存非法访问 就比如数组越界

3.error: bad operand types for binary operator '&'

博主的代码是这样的

if(num&1==1)

博主以为&的优先级比“==”大，实际上恰好相反，所以导致出错

4.terminate called after throwing an instance of 'std::out_of_range' what(): basic_string::substr

解决方案：查找substr方法前后代码，排除可能的越界条件。

5.AddressSanitizer:DEADLYSIGNAL

表示数组越界

6.member access within null pointer of type 'TreeNode'

表示未考虑参数空值异常

博主会持续更新