/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 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/nexgen32e/ffs.h"
#include "libc/nexgen32e/nexgen32e.h"
#include "libc/testlib/testlib.h"

TEST(ffs, test) {
  EXPECT_EQ(__builtin_ffs(0), (ffs)(0));
  EXPECT_EQ(__builtin_ffs(1), (ffs)(1));
  EXPECT_EQ(__builtin_ffs(0x00100000), (ffs)(0x00100000));
  EXPECT_EQ(__builtin_ffs(-1), (ffs)(-1));
}

TEST(ffsl, test) {
  EXPECT_EQ(__builtin_ffsl(0), (ffsl)(0));
  EXPECT_EQ(__builtin_ffsl(1), (ffsl)(1));
  EXPECT_EQ(__builtin_ffsl(0x00100000), (ffsl)(0x00100000));
  EXPECT_EQ(__builtin_ffsl(0x0010000000000000), (ffsl)(0x0010000000000000));
  EXPECT_EQ(__builtin_ffsl(-1), (ffsl)(-1));
}

TEST(ffsll, test) {
  EXPECT_EQ(__builtin_ffsll(0), (ffsll)(0));
  EXPECT_EQ(__builtin_ffsll(1), (ffsll)(1));
  EXPECT_EQ(__builtin_ffsll(0x00100000), (ffsll)(0x00100000));
  EXPECT_EQ(__builtin_ffsll(0x0010000000000000), (ffsll)(0x0010000000000000));
  EXPECT_EQ(__builtin_ffsll(-1), (ffsll)(-1));
}
