Program Listing for File NuMagSANSlib_Directory.h

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// File         : NuMagSANSlib_Directory.h
// Author       : Michael Philipp ADAMS, M.Sc.
// Company      : University of Luxembourg
// Department   : Department of Physics and Materials Sciences
// Group        : NanoMagnetism Group
// Group Leader : Prof. Andreas Michels
// Version      : 22 November 2024
// OS           : Linux Ubuntu
// Language     : CUDA C++

#include <iostream>
#include <fstream>
#include <sstream>
#include <sys/stat.h>
#include <sys/types.h>
#include <math.h>
#include <string>
#include <vector>
#include <stdlib.h>
#include <time.h>
#include <cuda_runtime.h>
#include <cublas_v2.h>
#include <stdexcept>
#include <math.h>
#include <chrono>
#include <dirent.h>
#include <unistd.h>
#include <limits.h>

using namespace std;

int count_NumberOfFolders(string Directory) {

    struct dirent* entity;
    DIR* dir = opendir(Directory.c_str()); // open directory stored in tmp_char
    entity = readdir(dir);                 // readdir command reads file and foldernames in directory
    string subfolder_name;
    int counter = 0; // counter that counts how many folders are in the MagData folder
    while (entity != NULL) {
        subfolder_name = entity->d_name;
        if (subfolder_name != "." && subfolder_name != ".." && subfolder_name != ".DS_Store" &&
            entity->d_type == DT_DIR) {
            counter += 1;
        }
        entity = readdir(dir);
    }
    closedir(dir);
    return counter;
}

int count_NumberOfElements(string Directory) {

    struct dirent* entity;
    DIR* dir = opendir(Directory.c_str()); // open directory stored in tmp_char
    entity = readdir(dir);                 // readdir command reads file and foldernames in directory
    string element_name;
    int counter = 0; // counter that counts how many folders are in the MagData folder
    while (entity != NULL) {
        element_name = entity->d_name;
        if (element_name != "." && element_name != ".." && element_name != ".DS_Store") {
            counter += 1;
        }
        entity = readdir(dir);
    }
    closedir(dir);
    return counter;
}

void read_FolderNames(string Directory, string* FolderNames, int Number_Of_FolderNames) {

    struct dirent* entity;
    DIR* dir = opendir(Directory.c_str()); // open directory stored in tmp_char
    entity = readdir(dir);                 // readdir command reads file and foldernames in directory
    string subfolder_name;
    int counter = 0; // counter that counts how many folders are in the MagData folder
    while (entity != NULL && counter < Number_Of_FolderNames) {
        subfolder_name = entity->d_name;
        if (subfolder_name != "." && subfolder_name != ".." && subfolder_name != ".DS_Store") {
            FolderNames[counter] = subfolder_name;
            counter += 1;
        }
        entity = readdir(dir);
    }
    closedir(dir);
}