2

我已经追踪到当我写入 txt 文件时。我已经检查过它是否已打开，并且它会在崩溃之前向文件写入一行。

VS2012 外部调试器向我抛出这个Unhandled exception at 0x77112D24 (ntdll.dll) in DTC.exe: 0xC0000005: Access violation writing location 0x10000000并将我指向virtual __CLR_OR_THIS_CALL ~basic_filebuf()fstream 标头内的这个函数。

void main()
{
    vector<string> fileNames;
    vector<time_t> fileTimes;

    CImg<unsigned char> image("Image.bmp");

    ofstream out("Result_Data.txt",ios::out|ios::app);
    if(!out.is_open())
    {
        cout<<"File Not Opened!\n";
    }
    unsigned long originalSize = my_image_functions::getFileSize("Image.bmp");
    time_t before = 0, after = 0;

    before=clock();
    my_image_functions::compressDualLevelBTC(image,"dualBTC_2_8.dtc",2,8);
    after = clock();

    fileTimes.push_back(after-before);
    fileNames.push_back("dualBTC_2_8.dtc");

    //...
    /* Several of these segments*/
    //...


    before=clock();
    my_image_functions::compressDualLevelBTC(image,"dualBTC_32_64.dtc",32,64);
    after = clock();

    fileTimes.push_back(after-before);
    fileNames.push_back("dualBTC_32_64.dtc");

    while(!fileNames.empty() && !fileTimes.empty())
    {
        out<< fileNames.back() <<";"<< fileTimes.back() <<";"<< my_image_functions::getFileSize(fileNames.back()) << ";" << ((float) originalSize)/my_image_functions::getFileSize(fileNames.back()) << endl;
        fileNames.pop_back();
        fileTimes.pop_back();
        if(!out.is_open())
        {
            cout<<"File Not Opened!\n";
        }
    }
    out.close();
}
4

2 回答 2

1

最可能的原因是您在运行发行版时缺少所需的 dll。

在可执行文件上运行 Dependency Walker：http: //dependencywalker.com/

于 2012-09-16T16:03:45.537 回答
0

您似乎在检查文件是否打开。如果不是，您打印消息“未打开”但仍然继续？

ofstream out("Result_Data.txt",ios::out|ios::app);
if(!out.is_open())
{
    cout<<"File Not Opened!\n";
}
于 2012-09-16T16:24:03.117 回答