Read text file character by character in C++

read-file-by-chars.cpp

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

/** Description:
 *  Replacement for std::endl. Prints new line without
 *  flushing the output buffer.
 *
 */

template <typename T, typename Traits = char_traits<T>>
std::basic_ostream<T, Traits>&
NL(std::basic_ostream<T, Traits>& out)
{
    return out << out.widen('\n');
}

int main()
{
    std::ifstream inputFile;
    inputFile.open("main.c", std::ios::in);

    if (!inputFile.is_open())
    {
        std::cerr << "[Error]: Failed to open input file..." << NL;

        return EXIT_FAILURE;
    }
    
    char input = 0;

    while ((input = inputFile.get()) != EOF)
    {
        std::cout << input;
    }

    inputFile.close();
    return EXIT_SUCCESS;
}