binary_read_write.cpp

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

int read_binary_file(string path, char** data){
 ifstream fin;
 fin.open(path.c_str(), ios_base::binary);
 if(!fin.is_open()){
 return -1;
 }

 fin.seekg(0, ios_base::end);
 int length = fin.tellg();
 fin.seekg(0, ios_base::beg);

 *data = new char[length];
 fin.read(*data, length);
 fin.close();
 return length;
}

int write_binary_file(string path, const char* const data, const int length){
 ofstream fout;
 fout.open(path.c_str(), ios_base::binary|ios_base::trunc);
 if(!fout.is_open()){
 return -1;
 }

 fout.write(data, length);
 fout.close();
 return length;
}

int main(){
 string lyrics = "Didn't even really wanna go\nBut if you get me out, you get a show\n";
 string filename = "down_lyrics.txt";
 write_binary_file(filename, lyrics.c_str(), lyrics.length());

 char* data;
 int len = read_binary_file(filename, &data);

 for(int i = 0; i < len; i++)
 cout << data[i];
 return 0;
}