/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/stdio/rand.h"
#include "libc/testlib/benchmark.h"
#include "libc/testlib/testlib.h"

uint64_t getrandom64(void) {
  uint64_t x;
  unassert(getrandom(&x, 8, 0) == 8);
  return x;
}

uint64_t getentropy64(void) {
  uint64_t x;
  unassert(!getentropy(&x, 8));
  return x;
}

TEST(lemur64, test) {
  EXPECT_EQ(1819718037028923529, lemur64());
  EXPECT_EQ(-3120132252617434764, lemur64());
}

BENCH(lemur64, bench) {
  BENCHMARK(10000, 8, X(lemur64()));
  BENCHMARK(10000, 4, X(rand()));
  BENCHMARK(10000, 8, X(_rand64()));
  BENCHMARK(10000, 8, X(rdrand()));
  BENCHMARK(10000, 8, X(rdseed()));
  BENCHMARK(10000, 8, X(getrandom64()));
  BENCHMARK(10000, 8, X(getentropy64()));
}