1 | /* Copyright (C) 2000-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library 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 GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <byteswap.h> |
19 | #include <stdio.h> |
20 | |
21 | extern unsigned long long int wash (unsigned long long int a); |
22 | |
23 | int |
24 | do_test (void) |
25 | { |
26 | int result = 0; |
27 | |
28 | /* Test the functions with constant arguments. */ |
29 | if (bswap_16 (0x1234) != 0x3412) |
30 | { |
31 | puts (s: "bswap_16 (constant) flunked" ); |
32 | result = 1; |
33 | } |
34 | if (bswap_32 (0x12345678) != 0x78563412) |
35 | { |
36 | puts (s: "bswap_32 (constant) flunked" ); |
37 | result = 1; |
38 | } |
39 | if (bswap_64 (0x1234567890abcdefULL) != 0xefcdab9078563412ULL) |
40 | { |
41 | puts (s: "bswap_64 (constant) flunked" ); |
42 | result = 1; |
43 | } |
44 | |
45 | /* Test the functions with non-constant arguments. */ |
46 | if (bswap_16 (wash (0x1234)) != 0x3412) |
47 | { |
48 | puts (s: "bswap_16 (non-constant) flunked" ); |
49 | result = 1; |
50 | } |
51 | if (bswap_32 (wash (0x12345678)) != 0x78563412) |
52 | { |
53 | puts (s: "bswap_32 (non-constant) flunked" ); |
54 | result = 1; |
55 | } |
56 | if (bswap_64 (wash (0x1234567890abcdefULL)) != 0xefcdab9078563412ULL) |
57 | { |
58 | puts (s: "bswap_64 (non-constant) flunked" ); |
59 | result = 1; |
60 | } |
61 | |
62 | return result; |
63 | } |
64 | |
65 | |
66 | unsigned long long int |
67 | wash (unsigned long long int a) |
68 | { |
69 | /* Do nothing. This function simply exists to avoid that the compiler |
70 | regards the argument to the bswap_*() functions as constant. */ |
71 | return a + 0; |
72 | } |
73 | |
74 | #include <support/test-driver.c> |
75 | |