libk/stdlib.h


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#pragma once

#include <string.h>
#include <type_traits.h>

class Console {
public:
  virtual void write(char c) = 0;
  virtual void write(const String &msg) = 0;
  virtual void write(int n) = 0;
  virtual void write(unsigned int n) = 0;

  static void set(Console *ptr);
  static Console *get();
};

template <typename T> void printk(const T &a) {
  if (auto *c = Console::get()) {
    if constexpr (is_same<T, const char *>())
      c->write(String(a));
    else
      c->write(a);
  }
}

template <typename T, typename... Args>
void printk(const T &a, const Args &...x) {
  printk(a);
  printk(x...);
}

__attribute__((__noreturn__)) void abort();