A directory traversal, access to an array of all the files in the directory path
. 1 #include <the iostream> 2 #include <dirent.h> . 3 #include <Vector> . 4 . 5 void listdir ( char * path, STD :: Vector <STD :: String > * Files) . 6 { . 7 the DIR * directory_pointer; . 8 struct dirent * entry; . 9 char childpath [ 512 ]; // define an array of characters, used to store the read path 10 char filepath [ 512 ]; // define an array of characters, used to store the read path . 11 directory_pointer = opendir (path); 12 is Memset (childpath, 0 , the sizeof (childpath)); // the array element of the array of characters all zero childpath 13 is the while ((entry = the readdir (directory_pointer)) = NULL!) // read pDir open directory, and assigned to ENT, while determining whether the directory is empty, not empty the loop is executed 14 { 15 IF (entry-> d_type & DT_DIR) // read open the directory file and the type of arithmetic operation and bit with DT_DIR, i.e., if d_type type read is DT_DIR (= 4 read directory table) 16 { . 17 IF (strcmp (entry-> d_name, " . " ) == 0 || strcmp (entry-> d_name, " .. " ) == 0 ) 18 { 19 // if d_name .. or read is represented in the current directory is read on a symbol and directory symbols, with contiue skipped, the following output is not performed. 20 is Continue ; 21 is } 22 is 23 is sprintf (childpath, " S% / S% " , path, entry-> d_name); // if non .. path and file name will be paid d_name childpath, and outputs the next line printf. 24 // the printf (" path:% S \ n- ", childpath); 25 listdir (childpath, Files); // recursive directory read word content lower, because it is recursive, so that all output sequentially from the outside inwards directory (directory name + path), 26 // before the else out sequentially outputted from the all file names 27 } 28 else //If the type is not read d_type DT_DIR, i.e., the read is not a directory, but the file, d_name output directly, i.e., the output file name 29 { 30 sprintf (filepath, " % S /% S " , path, entry-> d_name ); 31 is the printf ( " file path:% S \ n- " , filepath); // output filename directory belt 32 Files-> push_back (filepath); 33 is } 34 is } 35 } 36 37 [ int main ( int argc, const char * the argv []) { 38 is // INSERT code here Wallpaper ... 39 std::cout << "ListFile Start!\n"; 40 41 std::string res = "res"; 42 char *path = const_cast<char *>(res.c_str()); 43 std::vector<std::string> files; 44 listDir(path, &files); 45 return 0; 46 }
operation result:
