blob: cca704c0d25fc86c98f995bc0552cde576955169 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/* Copyright (C) 2000-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <byteswap.h>
#include <stdio.h>
extern unsigned long long int wash (unsigned long long int a);
int
main (void)
{
int result = 0;
/* Test the functions with constant arguments. */
if (bswap_16 (0x1234) != 0x3412)
{
puts ("bswap_16 (constant) flunked");
result = 1;
}
if (bswap_32 (0x12345678) != 0x78563412)
{
puts ("bswap_32 (constant) flunked");
result = 1;
}
if (bswap_64 (0x1234567890abcdefULL) != 0xefcdab9078563412ULL)
{
puts ("bswap_64 (constant) flunked");
result = 1;
}
/* Test the functions with non-constant arguments. */
if (bswap_16 (wash (0x1234)) != 0x3412)
{
puts ("bswap_16 (non-constant) flunked");
result = 1;
}
if (bswap_32 (wash (0x12345678)) != 0x78563412)
{
puts ("bswap_32 (non-constant) flunked");
result = 1;
}
if (bswap_64 (wash (0x1234567890abcdefULL)) != 0xefcdab9078563412ULL)
{
puts ("bswap_64 (non-constant) flunked");
result = 1;
}
return result;
}
unsigned long long int
wash (unsigned long long int a)
{
/* Do nothing. This function simply exists to avoid that the compiler
regards the argument to the bswap_*() functions as constant. */
return a + 0;
}
|
