blob: 03e190ad782f6fa907e51c22a3b5ee49331e00a7 (
plain)
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
|
/* { dg-do run } */
/* { dg-require-effective-target stdint_types } */
/* { dg-options "-Wall" } */
#include <stdint.h>
#define MAKE_FUN(suffix, type) \
type my_bswap##suffix(type x) { \
type result = 0; \
int shift; \
for (shift = 0; shift < 8 * sizeof (type); shift += 8) \
{ \
result <<= 8; \
result |= (x >> shift) & 0xff; \
} \
return result; \
} \
MAKE_FUN(32, uint32_t);
MAKE_FUN(64, uint64_t);
extern void abort (void);
#define NUMS32 \
{ \
0x00000000UL, \
0x11223344UL, \
0xffffffffUL, \
}
#define NUMS64 \
{ \
0x0000000000000000ULL, \
0x1122334455667788ULL, \
0xffffffffffffffffULL, \
}
uint32_t uint32_ts[] =
NUMS32;
uint64_t uint64_ts[] =
NUMS64;
#define N(table) (sizeof (table) / sizeof (table[0]))
int
main (void)
{
int i;
for (i = 0; i < N(uint32_ts); i++)
if (__builtin_bswap32 (uint32_ts[i]) != my_bswap32 (uint32_ts[i]))
abort ();
for (i = 0; i < N(uint64_ts); i++)
if (__builtin_bswap64 (uint64_ts[i]) != my_bswap64 (uint64_ts[i]))
abort ();
return 0;
}
|
