内存位置的C++ bad_alloc异常

Question

OSGP.exe中0x758cd36f处的未处理异常:Microsoft C++异常:内存位置为0x0028ef70的std :: bad_alloc ..

我试图在Visual Studio中执行下面的代码.但是,我一直遇到上面的例外.我添加了一个try catch来帮助我捕获错误,但似乎无济于事.我相信问题与输出窗口中的以下内容有关

First-chance exception at 0x758cd36f in OSGP.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0019f2f4..
First-chance exception at 0x758cd36f in OSGP.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0019ec84..
First-chance exception at 0x758cd36f in OSGP.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
The thread 'Win32 Thread' (0x16dc) has exited with code 0 (0x0).
The program '[448] OSGP.exe: Native' has exited with code 0 (0x0).**

这是代码:

#include <osgDB/ReadFile>
#include <osgViewer/Viewer>
#include <new>

#include "stdafx.h"

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{ 
    int flag = false;
    osgViewer::Viewer viewer;
     osg::ref_ptr<osg::Node> root;
    try
    { 
        root = osgDB::readNodeFile("cessna.osg");
        viewer.setSceneData(root.get()); 
    }
    catch(bad_alloc)
    { 
        if (flag) cout << "a bad_alloc exception just occured"; 
    }
    return viewer.run(); 
}

Answer 1

当程序没有足够的内存来完成请求的操作时,通常会抛出std :: bad_alloc.

可能的问题:

• cessna.org太大,无法在您运行此计算机的计算机上进行处理
• cessna.org中的错误数据/逻辑导致它尝试分配无限量的内存

但是不可能用所提供的信息说出来.