1.glob
------
```c++
#include <glob.h>

glob_t glob_result;
glob("/your_directory/*",GLOB_TILDE,NULL,&glob_result);
for(unsigned int i=0; i<glob_result.gl_pathc; ++i){
  cout << glob_result.gl_pathv[i] << endl;
}
globfree(&glob_result);
```

**vector封装:**
```c++
#include <glob.h>
#include <vector>
#include <string>

inline std::vector<std::string> glob(const std::string& pat){
    using namespace std;
    glob_t glob_result;
    glob(pat.c_str(),GLOB_TILDE,NULL,&glob_result);
    vector<string> ret;
    for(unsigned int i=0;i<glob_result.gl_pathc;++i){
        ret.push_back(string(glob_result.gl_pathv[i]));
    }
    globfree(&glob_result);
    return ret;
}
```


2.c++17
-------
```c++
#include <string>
#include <iostream>
#include <filesystem>
namespace fs = std::filesystem;

int main()
{
    std::string path = "path_to_directory";
    for (auto & p : fs::directory_iterator(path))
        std::cout << p << std::endl;
}
```


3.boost
-------
```c++
#include <string>
#include <iostream>
#include <boost/filesystem.hpp>
using namespace std;
using namespace boost::filesystem;

int main()
{
    path p("D:/AnyFolder");
    for (auto i = directory_iterator(p); i != directory_iterator(); i++)
    {
        if (!is_directory(i->path())) //we eliminate directories
        {
            cout << i->path().filename().string() << endl;
        }
        else
            continue;
    }
}
```


4. dirent
-------
```c++
#include <dirent.h>

DIR *dir;
struct dirent *ent;
if ((dir = opendir ("c:\\src\\")) != NULL) {
  /* print all the files and directories within directory */
  while ((ent = readdir (dir)) != NULL) {
    printf ("%s\n", ent->d_name);
  }
  closedir (dir);
} else {
  /* could not open directory */
  perror ("");
  return EXIT_FAILURE;
}
```