krdln

#include <sstream>
#include <iostream>
#include <string>
using namespace std;

string ss2s(ostream const& os) { 
	return static_cast<stringstream const&>(os).str();
}

int main() {

krdln

use std::rt::io::Writer;
use std::rt::io::stdio::with_task_stdout;

struct MagicWriter();
impl Writer for MagicWriter {
    fn write(&mut self, buf: &[u8]) {
        do with_task_stdout |o| { o.write(buf); }
    }
    fn flush(&mut self) {
        do with_task_stdout |o| { o.flush(); }

krdln

use std::rt::io::{stdout,Writer};

fn main() {
    print("Hello");
    stdout().write(" World".as_bytes());
    println("!");
}

krdln

#define F_CPU 12000000UL

#include <krdln/port.h>

int main() {
	Output<A::Pin<0>> led;
	Output<A::Pin<2>, false> err; // false: "on" level is 0V
	Button<C::Pin<3>> but; // automagic pullup, yay!
	int const T = 300;
	

krdln

#include <cstdio>

struct _Ms { int x; };
struct _Us { int x; };

constexpr _Ms operator "" ms(long long unsigned x) { return {(int)x}; }
constexpr _Us operator"" us(long long unsigned x) { return {(int)x}; }

void fun(_Ms x) { printf("%d milisekund\n", x.x); }
void fun(_Us x) { printf("%d mikrosekund\n", x.x); }