[Solved] how to read .dat files in c++ [closed]

Introduction

Reading .dat files in C++ can be a tricky task, especially if you are unfamiliar with the language. Fortunately, there are a few simple steps you can take to make the process easier. In this article, we will discuss how to read .dat files in C++, including the different methods available and the advantages and disadvantages of each. We will also provide some tips and tricks to help you get the most out of your .dat file reading experience. By the end of this article, you should have a better understanding of how to read .dat files in C++.

Solution

The best way to read .dat files in C++ is to use the fstream library. This library provides functions for reading and writing to files. To read a .dat file, you can use the ifstream class.

// Include the fstream library
#include

// Create an ifstream object
ifstream myFile;

// Open the file
myFile.open(“myFile.dat”);

// Check if the file is open
if (myFile.is_open())
{
// Read the file
string line;
while (getline(myFile, line))
{
// Do something with the line
}

// Close the file
myFile.close();
}

Yes, you can use fstream for this.

Here is some code you could use
for splitting the data into an array devided by a delimiter. just change the
DELIMITER to your delimiter.

#include <iostream>
using std::cout;
using std::endl;

#include <fstream>
using std::ifstream;

#include <cstring>

const int MAX_CHARS_PER_LINE = 512;
const int MAX_TOKENS_PER_LINE = 20;
const char* const DELIMITER = " ";

int main()
{
  // create a file-reading object
  ifstream fin;
  fin.open("data.txt"); // open a file
  if (!fin.good()) 
    return 1; // exit if file not found

  // read each line of the file
  while (!fin.eof())
  {
    // read an entire line into memory
    char buf[MAX_CHARS_PER_LINE];
    fin.getline(buf, MAX_CHARS_PER_LINE);

    // parse the line into blank-delimited tokens
    int n = 0; // a for-loop index

    // array to store memory addresses of the tokens in buf
    const char* token[MAX_TOKENS_PER_LINE] = {}; // initialize to 0

    // parse the line
    token[0] = strtok(buf, DELIMITER); // first token
    if (token[0]) // zero if line is blank
    {
      for (n = 1; n < MAX_TOKENS_PER_LINE; n++)
      {
    token[n] = strtok(0, DELIMITER); // subsequent tokens
        if (!token[n]) break; // no more tokens
  }
}

    // process (print) the tokens
    for (int i = 0; i < n; i++) // n = #of tokens
      cout << "Token[" << i << "] = " << token[i] << endl;
    cout << endl;
  }
}

To store the data into a database take a look at MySql