如何准确找到哪个向量下标超出范围 [英] How to find exactly which vector subscript out of range

问题描述

你好，

我知道什么意思是"矢量下标超出范围"，我想我知道如何处理它。但问题是我的应用程序使用了很多std：向量，我不知道如何找到导致问题的那个。任何人都可以帮助我吗？

我是Visual Studio的新手，并且不太了解debuger。我需要帮助。

提前感谢任何支持。

祝你好运

解决方案

 int main（）
 {
 std :: vector< int> vInts; 
 
 for（int i = 0; i< 5; i ++）
 vInts.push_back（i）; 
 
 int x = vInts [5]; //这一行创建错误
 
返回0; 
} 

在上面的例子中，矢量变量可以使用0到4进行索引。 值5超出有效范围。 运行时应该生成一个对话框，当您正确响应时，它会带您进入违规的源代码行。 
确保使用调试库（即/ MDd或/ MTd）构建程序

Hello,

I know what does mean "vector subscript out of range", and I think I know how to deal with it. But the problem is my application use a lot of std:vectors and I have no idea how to find which one causes the problem. Could anyone help me?

I am new in Visual Studio, and don't know debuger very well. I need help.

Thanks in advance fo any support.

Best regards

解决方案

int main()
{
	std::vector<int> vInts;

	for(int i = 0; i < 5; i++)
		vInts.push_back(i);

	int x = vInts[5]; // this line creates the error

    return 0;
}

In the above example, the vector variable can be indexed using 0 to 4.  The value 5 is out of the valid range.  The runtime should produce a dialog box that, when you respond properly, will then take you to the offending line of source code.  Make sure to build your program using the debug libraries (i.e., /MDd or /MTd)

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