`out_of_range' has not been declared
如下代码，在VS2010下运行正常，但是，在CFree（mingw5）运行就会出现 `out_of_range' has not been declared的问题,请问下，这是什么原因呢？要如何做才能正常运行？

C/C++ code

#include <iostream>#include <string> using namespace std; int main() {     string s="what is your name?";     int index, len;     while(true)     {         cout<<"Enter index and len to erase: ";         cin>>index>>len;         try         {             s.erase(index,len);         }         catch(out_of_range)         {             cout<<"out of range!!!";            continue;         }         break;     }        return 0; }

C/C++ code

#include <stdexcept>