C++ 递归读取目录下所有文件

windows版本

#include <iostream>
#include <io.h>
#include <fstream>
#include <string>
#include <sstream>
using namespace std;

void getAllFiles(string path, vector<string>& files)
{
    //文件句柄  
    long   hFile = 0;
    //文件信息  
    struct _finddata_t fileinfo;  //很少用的文件信息读取结构
    string p;  //string类很有意思的一个赋值函数:assign()，有很多重载版本
    if ((hFile = _findfirst(p.assign(path).append("\*").c_str(), &fileinfo)) != -1)
    {
        do
        {
            if ((fileinfo.attrib &  _A_SUBDIR))  //比较文件类型是否是文件夹
            {
                if (strcmp(fileinfo.name, ".") != 0 && strcmp(fileinfo.name, "..") != 0)
                {
                    files.push_back(p.assign(path).append("/").append(fileinfo.name));
                    getAllFiles(p.assign(path).append("/").append(fileinfo.name), files);
                }
            }
            else
            {
                files.push_back(p.assign(path).append("/").append(fileinfo.name));
            }
        } while (_findnext(hFile, &fileinfo) == 0);  //寻找下一个，成功返回0，否则-1
        _findclose(hFile);
    }
}

int main(){
    char * inPath = "./srcImg";
    vector<string> files;
    //测试
    char * distAll = "AllFiles.txt";
    getAllFiles(inPath, files);
    ofstream ofn(distAll);
    int size = files.size();
    ofn << size << endl;
    for (int i = 0; i<size; i++)
    {
    ofn << files[i] << endl;
    }
    ofn.close();

    return 0;
}

linux版本

#include <iostream>
#include <string>
#include <iostream>
#include <string>
#include <vector>
#include <fstream>
extern "C"{
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <unistd.h>
    #include <errno.h>
    #include <dirent.h>
    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
}
using namespace std;

void getAllFiles(string path, vector<string>& files)
{
    DIR *dir;
    struct dirent *ptr;
    if((dir=opendir(path.c_str()))==NULL){
        perror("Open dri error...");
        exit(1);
    }
    while((ptr=readdir(dir))!=NULL){
        if(strcmp(ptr->d_name,".")==0||strcmp(ptr->d_name,"..")==0)
            continue;
        else if(ptr->d_type==8)//file
            files.push_back(path+"/"+ptr->d_name);
        else if(ptr->d_type==10)//link file
            continue;
        else if(ptr->d_type==4){
            //files.push_back(ptr->d_name);//dir
            getAllFiles(path+"/"+ptr->d_name,files);
        }
    }
    closedir(dir);
}
int main(int argc,char **argv){
    if(argc<2){
        cout<<"USAGE:./a.out path"<<endl;
        exit(-1);
    }
    char * filePath = argv[1];
    vector<string> files;
    char * distAll = "allFiles.txt";
    getAllFiles(filePath, files);
    ofstream ofn(distAll);
    int size = files.size();
    //ofn << size << endl;
    for (int i = 0; i<size; i++)
    {
        ofn << files[i] << endl;
    }
    ofn.close();
    return 0;
}