#pragma once

#include <stdint.h>

#define NUL 0 // TODO Fix VSCode thinking `NULL` conflicts with some other definition.

#define ONES(h, l) ((1ULL << ((h) - (l) + 1)) - 1)
#define BITS_R(s, h, l) (((s) >> (l)) & ONES(h, l))
#define BITS_W(s, h, l, v) ((s) = (__typeof__(s))(((s) & ~(ONES(h, l) << (l))) | (((v) & ONES(h, l)) << (l))))

#define STDIN 0
#define STDOUT 1
#define STDERR 2

typedef uint64_t exit_code_t;

#define EXIT_CODE_OK 0
#define EXIT_CODE_NOT_FOUND ((uint64_t)-2)
#define EXIT_CODE_GENERAL_FAILURE ((uint64_t)-1)

static inline void sleep(uint64_t ms) {
  for (volatile uint64_t i = 1000000 * ms; i; i--) // Very approximately
    ;
}