Question

If I made a program that stores strings on a text file using the “list”-function(#include ), and then I want to copy all of the text from that file and call it something(so I can tell the program to type in all of the text I copied somewhere by using that one variable to refer to the text), do I use a string,double,int or what do I declare that chunk of text as?

I’m making the program using c++ in a simple console application.

Easier explanation for PoweRoy:

I have a text in a .txt file,I want to copy everything in it and then all this that I just copied, I want to call it “int text” or “string text” or whatever.But I don’t know which one of those “int”,”string”,”double” etc. to use.

Answer 1

To take some pity on you, this is about the simplest C++ program that reads a file into memory and then does something with it:

#include <iostream>
#include <string>
#include <vector>
#include <fstream>
using namespace std;

int main() {

    ifstream  input( "foo.txt" );
    if ( ! input.is_open() ) {
        cerr << "could not open input file" << endl;
        return 1;
    }

    vector <string> lines;
    string line;
    while( getline( input, line ) ) {
        lines.push_back( line );
    }

    for ( unsigned int i = 0; i < lines.size(); i++ ) {
        cout << (i+1) << ": " << lines[i] << "\n"; 
    }
}