Question

How reverse text in text file using C++

Answer 1

#include <iostream>
#include <string>
#include <fstream>

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

int main()
{
	std::ifstream ifs("d:\\data.txt");

	std::string s((std::istreambuf_iterator<char>(ifs)), (std::istreambuf_iterator<char>()));

	ifs.close();
	
	if (!isalpha(s[s.size() - 1]))
		s.pop_back();

	reverse(s.begin(), s.end());

	std::ofstream ofs("d:\\data.txt");
	ofs << s;
	ofs.close();

	return 0;
}

/*
run:

nohtyp php avaj #c
++c c

*/

 

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