D vs C++ (simple)

// D

import std.stdio;
import std.file;

void main(string[] args){
    char[] bytes;
    try
        bytes = cast(char[]) std.file.read("input.txt");
    catch(Exception e){
        writeln("Failed to open file.");
        return;
    }
    try
        std.file.append("output.txt", cast(void[]) (bytes ~ '\n'));
    catch(Exception e){
        writeln("Failed to write to file.");
        return;
    }
}

// C++

#include <fstream>
#include <iostream>

int main(int argc, char* argv[]){
    std::ifstream infile("Whatever.txt");
    std::ofstream oufile("Whatever2.txt", std::ios::app);
    if(infile.is_open() && oufile.is_open()){
        char buf[512];
        while(infile.good()){
            infile.getline(buf, 512);
            oufile << buf << '\n';
        }
    }else{
        std::cout << "Failed to open files." << std::endl;
    }
    infile.close();
    oufile.close();
    return 0;
}