c – 无法在MinGW中捕获bad_alloc

#include "List.h"
#include<iostream>
#include <exception>

int main(int argc,char **argv) {
    cout << "size of List c++ : " << sizeof(List) << endl;  //16
    List * ptrList = new List();
    unsigned long var = 0;
    try {
        for (;; ++var) {
            List * ptrList2 = new  List();
            ptrList->next = ptrList2;
            ptrList2->prevIoUs = ptrList;
            ptrList = ptrList2;
        }
    } catch (bad_alloc const& E) {
        cout << "caught : " << e.what() << endl;
//  } catch (...) { //this won't work either
    }

结果是 ：

如果我将分配部分更改为：

List * ptrList2 = new (nothrow) List();
            if (!ptrList2) {
                cout << "out of memory - created " << var << " nodes" << endl;
                break;
            }

我很高兴：

out of memory - created 87921929 nodes

为什么我不能抓住bad_alloc？

我在Windows 7 x64 Pro上使用mingwin

C:\Users\MrD>g++ --version
g++ (GCC) 4.7.2

列表 ：

class List {
    long j;
public:
    List * next;
    List * prevIoUs;
    virtual long jj() {
        return this->j;
    }
    List() {
        next = prevIoUs = 0;
        j = 0;
    }
    virtual ~List() {
        if (next) {
            next->prevIoUs = this->prevIoUs;
        }
        if (prevIoUs) {
            prevIoUs->next = this->next;
        }
    }
};