tests/test-u64.c

   1 /* Test of <u64.h>
   2    Copyright (C) 2009-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Simon Josefsson <simon@josefsson.org>, 2009.  */
  18
  19 #include <config.h>
  20
  21 #include <u64.h>
  22
  23 int
  24 main (void)
  25 {
  26   u64 i = u64init (42, 4711);
  27   u64 j, k, l;
  28
  29   j = u64hilo (42, 4711);
  30
  31   if (u64lt (i, j) || u64lt (j, i))
  32     return 1;
  33
  34   i = u64hilo (0, 42);
  35   j = u64hilo (0, 43);
  36
  37   if (!u64lt (i, j))
  38     return 1;
  39
  40   k = u64plus (i, j);
  41   l = u64hilo (0, 42 + 43);
  42
  43   if (u64lt (k, l) || u64lt (l, k))
  44     return 1;
  45
  46   u64
  47     m = u64hilo (0x01020304, 0x05060708),
  48     n = u64hilo (0x08070605, 0x04030201),
  49     o = u64bswap (m);
  50   if (u64lt (n, o) || u64lt (o, n))
  51     return 1;
  52
  53   return 0;
  54 }