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vs中“Stack around the variable was corrupted”的解决方案

时间:2012-10-03 18:18来源:知行网www.zhixing123.cn 编辑:麦田守望者

把 project->配置属性->c/c++->代码生成->基本运行时检查 为 默认值 就不会报本异常。具体原因正在研究中。。。

如果改为其他就有exception。

exception有时是有道理的

// step 1
STRINGC2& STRINGC2::operator += (const char x)
{
// if (x == 0) return *this;

char ptr[1]; // max is 1 digit

ptr[0] = x;
ptr[1] = '\0';
*this += ptr; // off to step 2 and back

return *this; // step 4 crash
}
这个也会导致上述exception。


问题描述:

Problem

The following error message occurs when building on Test RealTIme environment with the cvisual7 TDP?

Run-Time Check Failure #2 - Stack around the variable 'xxx' was corrupted.

Cause
Stack pointer corruption is caused writing outside the allocated buffer in stack memeory.

Solution
This kind of error is detected by setting /RTC1 compiler option from menu Project -> Settings -> Configuration properties -> Build -> Compiler -> Compiler flags when using TDP cvisual7 in IBM® Rational® Test RealTime environment.. This enables stack frame run-time error checking. For example, the following code may cause the above error messge.

#include <stdio.h>
#include <string.h>

#define BUFF_LEN 11 // 12 may fix the Run-Time Check Failure #2
int rtc_option_test(char * pStr);

int main()
{
char * myStr = "hello world";
rtc_option_test(myStr);
return 0;
}

int rtc_option_test(char * pStr)
{
char buff[BUFF_LEN];
strcpy(buff, pStr); //cause Run-Time Check Failure #2 - Stack around
//the variable 'buff' was corrupted.
return 0;
}

 

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