| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2000 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Ulrich Drepper <drepper@cygnus.com>. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | #include <byteswap.h> |
| 21 | #include <stdio.h> |
| 22 | |
| 23 | extern unsigned long long int wash (unsigned long long int a); |
| 24 | |
| 25 | int |
| 26 | main (void) |
| 27 | { |
| 28 | int result = 0; |
| 29 | |
| 30 | /* Test the functions with constant arguments. */ |
| 31 | if (bswap_16 (0x1234) != 0x3412) |
| 32 | { |
| 33 | puts ("bswap_16 (constant) flunked"); |
| 34 | result = 1; |
| 35 | } |
| 36 | if (bswap_32 (0x12345678) != 0x78563412) |
| 37 | { |
| 38 | puts ("bswap_32 (constant) flunked"); |
| 39 | result = 1; |
| 40 | } |
| 41 | if (bswap_64 (0x1234567890abcdefULL) != 0xefcdab9078563412ULL) |
| 42 | { |
| 43 | puts ("bswap_64 (constant) flunked"); |
| 44 | result = 1; |
| 45 | } |
| 46 | |
| 47 | /* Test the functions with non-constant arguments. */ |
| 48 | if (bswap_16 (wash (0x1234)) != 0x3412) |
| 49 | { |
| 50 | puts ("bswap_16 (non-constant) flunked"); |
| 51 | result = 1; |
| 52 | } |
| 53 | if (bswap_32 (wash (0x12345678)) != 0x78563412) |
| 54 | { |
| 55 | puts ("bswap_32 (non-constant) flunked"); |
| 56 | result = 1; |
| 57 | } |
| 58 | if (bswap_64 (wash (0x1234567890abcdefULL)) != 0xefcdab9078563412ULL) |
| 59 | { |
| 60 | puts ("bswap_64 (non-constant) flunked"); |
| 61 | result = 1; |
| 62 | } |
| 63 | |
| 64 | return result; |
| 65 | } |
| 66 | |
| 67 | |
| 68 | unsigned long long int |
| 69 | wash (unsigned long long int a) |
| 70 | { |
| 71 | /* Do nothing. This function simply exists to avoid that the compiler |
| 72 | regards the argument to the bswap_*() functions as constant. */ |
| 73 | return a + 0; |
| 74 | } |