Program Listing for File NuMagSANSlib_ReadWrite.h

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// File         : NuMagSANSlib_ReadWrite.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>

using namespace std;

// Read and Write Function library

// ##############################################################################################################################################
// ##############################################################################################################################################

void WriteCSV_double_vector(unsigned long int N, double *data, string filename){
    ofstream fout;
    fout.open(filename);
    for(unsigned long int n=0; n<N; n++) fout << data[n] << "\n";
    fout.close();
}

void WriteCSV_float_vector(unsigned long int N, float *data, string filename){
    ofstream fout;
    fout.open(filename);
    for(unsigned long int n=0; n<N; n++) fout << data[n] << "\n";
    fout.close();
}

void ReadCSV_double_vector(unsigned long int N, double *data, string filename){
    ifstream fin;
    fin.open(filename);
    for(unsigned long int n=0; n<N; n++) fin >> data[n];
    fin.close();
}

void ReadCSV_float_vector(unsigned long int N, float *data, string filename){
    ifstream fin;
    fin.open(filename);
    for(unsigned long int n=0; n<N; n++) fin >> data[n];
    fin.close();
}

void ReadCSV_double_matrix(unsigned long int N, unsigned long int M, double **data, string filename){
    ifstream fin;
    fin.open(filename);
    for(unsigned long int n=0; n<N; n++){
        for(unsigned long int m=0; m<M; m++) fin >> data[n][m];
    }
    fin.close();
}

void WriteCSV_float_matrix(unsigned long int N, unsigned long int M, float **data, string filename){
    ofstream fout;
    fout.open(filename);
    for(unsigned long int n=0; n<N; n++){
        for(unsigned long int m=0; m<M; m++){
            fout << data[n][m];
            if(m<M-1) fout << ",";
        }
        fout << "\n";
    }
    fout.close();
}








/*

void NumberOfEntriesInNucFile(int *NumberOfColumns, string filename){

    ifstream fin;
    fin.open(filename);
    std::string line;

    float x, y, z, Nuc;

    int line_counter = 0;
    int error_counter = 0;

    while(std::getline(fin, line)){
        std::istringstream ss(line);
        if(ss >> x >> y >> z >> Nuc){
            line_counter += 1;
        } else{
            error_counter ++;
//          std::cerr << "Error in row: " << line_counter + error_counter << ": " << line << "\n";
        }
    }
    fin.close();
    *NumberOfColumns = line_counter;

}
*/

/*
void NumberOfNonZeroMagneticMomentsInFile(int *NumberOfNonZeroMoments, int *NumberOfColumns, string filename){

    ifstream fin;
    fin.open(filename);
    std::string line;

    float x, y, z, mx, my, mz;

    int line_counter = 0;
    int moment_counter = 0;
    int error_counter = 0;

    while(std::getline(fin, line)){
        std::istringstream ss(line);
        if(ss >> x >> y >> z >> mx >> my >> mz){
            if(mx != 0.0 || my != 0.0 || mz != 0.0){
                moment_counter += 1;
            }
            line_counter += 1;
        } else{
            error_counter ++;
            std::cerr << "Error in row: " << line_counter + error_counter << ": " << line << "\n";
        }
    }
    fin.close();
    *NumberOfColumns = line_counter;
    *NumberOfNonZeroMoments = moment_counter;

}
*/

/*
void CountColumnsAndRowsInMagDataFile(int *Number_Of_Rows, int *Number_Of_Columns, string filename){

    ifstream fin;
    fin.open(filename);
    string line;
    //float ghost_buf = 0.0;

    *Number_Of_Rows = 0;
    *Number_Of_Columns = 0;
    while(getline(fin, line)){
        //cout << line.size() << "\n";
        *Number_Of_Rows += 1;
    }
}
*/