How do I read an entire file into a std::string in C++?

Question

How do I read a file into a std::string, i.e., read the whole file at once?

Text or binary mode should be specified by the caller. The solution should b

Answer 1

#include 
#include 
#include 
using namespace std;
main(){
    fstream file;
    //Open a file
    file.open("test.txt");
    string copy,temp;
    //While loop to store whole document in copy string
    //Temp reads a complete line
    //Loop stops until temp reads the last line of document
    while(getline(file,temp)){
        //add new line text in copy
        copy+=temp;
        //adds a new line
        copy+="\n";
    }
    //Display whole document
    cout<