Question

How to add (combined) two text files into one text file in C++

Answer 1

#include <iostream>
#include <fstream>

using std::cout;
using std::endl;
using std::ifstream;

int main()
{
	ifstream ifs1("d:\\data.txt");
	ifstream ifs2("d:\\test.txt");

	std::ofstream combined_files("d:\\combined_files.txt");

	combined_files << ifs1.rdbuf() << ifs2.rdbuf();

	ifs1.close();
	ifs2.close();
	combined_files.close();

	return 0;
}

/*
run:

combined_files.txt
------------------
c c++
c# java php python
C++ Programming

*/

 

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