Run-Time Check Failure #N

环境：Visual Studio Team Suite 2005
类型：Debug

以下是简化代码，出现让人摸不着头脑的Run-Time Check Failure，具体原因还在研究中,有结果会公布上来，N久没写博客了，太忙了。。。

代码1

#include 'stdafx.h'
void malice()
...{
printf('Hey,you're been attacked.\n');
}

void foo()
...{
int *ret;
ret=(int*)&ret+2;
(*ret)=(int)malice;
}

int _tmain(int argc, _TCHAR* argv[])
...{
foo();
return 0;
} 

运行后出现：
Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention.


代码2

#include 'stdafx.h'
void foo()
...{
int var[2];
var[2] = 0;
}

int _tmain(int argc, _TCHAR* argv[])
...{
foo();
return 0;
}

运行后出现：
Run-Time Check Failure #2 - Stack around the variable 'var' was corrupted.

#include 'stdafx.h'
#include <iostream>
using namespace std;

int a,b;
int _tmain(int argc, _TCHAR* argv[])
...{
int c;
cout<<a<<'\n';
cout<<b<<'\n';
cout<<c<<'\n';
return 0;
}

运行后出现：
Run-Time Check Failure #3 - The variable 'c' is being used without being defined.