Recursive Method to list all the file present in a Directory using cpp

#include < iostream > 
#include < dirent.h > 

using namespace std;

class recDir
{
    private:
        int fileCount;
    public:
        recDir()
        {
            fileCount = 0;
        }
        void showFileList(char *dirPath)
        {
            char *subDir="",*temp;
            DIR *curDir;
            struct dirent *entry;
            if(curDir = opendir(dirPath))
            {
                while(entry = readdir(curDir))
                {
                    if(strcmp(entry- > d_name,".") != 0 && 
                        strcmp(entry- > d_name,"..") != 0)
                    {
                        temp=strstr(entry- > d_name,".");
                        if(temp!=NULL
                        {
                            fileCount++;
                            cout <<  "File [" <<  
                            fileCount <<  "]  " <<
                            entry- > d_name <<  endl;
                        }
   else
   {
           subDir = dirPath;
              strcat(subDir,"/");
           strcat(subDir,entry- > d_name);
           showFileList(subDir);
   } 
                    }
                }
                closedir(curDir);
            }
            else
            cout << "Error:Could not open directory/file\n";
        }
        int totalFiles()
        {
            return fileCount;
        }
};


int main(int argc,char *argv[])
{
    recDir obj;
    obj.showFileList(argv[1]);
    cout <<  endl <<  "Total Files = 
    " <<  obj.totalFiles() <<  endl;
}