清单目录中的boost ::文件系统的文件递归 [英] list directory files recursively with boost::filesystem

问题描述

我使用新的动力，V1.5.3，开展这项工作就像下，由于类recursive_directory_iterator（我没有写递归code）：

I'm using new boost, v1.5.3, to carry out this task like following, thanks to the class recursive_directory_iterator (I don't have to write recursive code):

void ListDirRec(const char *Dir, vector<string>& DirFileList, const char* ext)
{    
recursive_directory_iterator rdi(Dir);  
recursive_directory_iterator end_rdi;

DirFileList.empty();

string ext_str0(ext);   
for (; rdi != end_rdi; rdi++)
{
    rdi++;
    //cout << (*di).path().string() << endl;
    cout << (*rdi).path().string() << endl;

    //cout << " <----- " << (*rdi).path().extension() << endl;

    //string ext_str1 = (*rdi).path().extension().string();
    if (ext_str0.compare((*rdi).path().extension().string()) == 0)
    {
        DirFileList.push_back((*rdi).path().string());
    }
}

函数列表文件与特定扩展。此功能为案件，但经常返回断言失败错误，如：

the function list files with specific extension. This function works for cases but frequently return an "assertion fails error" like:

**** Internal program error - .... assertion (m_imp.get()) ... operations.hpp(952): dereference of end recursive_directory_iterator

我刚刚想出这个错误的原因。可以在任何尝试..赶上帮助？
在此先感谢您的帮助。

I barely figure out the cause of this error. Can any try.. catch help? thanks in advance for any help

推荐答案

正在递增 RDI 内循环，以及在为声明：

You are incrementing rdi inside the loop as well as in the for declaration:

for (; rdi != end_rdi; rdi++)
{
    rdi++;

这意味着 RDI 可能是 end_rdi （结束迭代器，这意味着过去的最后一个元素）内你的循环。有你这样做的原因是什么？ （如果这是故意的，你应该检查，以确保 RDI！= end_rdi 您增加后再次它。）

That means that rdi might be end_rdi (the end-iterator, which means past the last element) within your loop. Is there any reason you're doing this? (If this is intentional, you should check to make sure rdi != end_rdi again after you increment it.)

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