Viewing file:  bitfld-3.c (1.63 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* Test that operations on bit-fields yield results reduced to bit-field
type. */
/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
extern void exit (int);
extern void abort (void);
struct s {
unsigned long long u33: 33;
unsigned long long u40: 40;
unsigned long long u41: 41;
};
struct s a = { 0x100000, 0x100000, 0x100000 };
struct s b = { 0x100000000ULL, 0x100000000ULL, 0x100000000ULL };
struct s c = { 0x1FFFFFFFFULL, 0, 0 };
int
main (void)
{
if (a.u33 * a.u33 != 0 || a.u33 * a.u40 != 0 || a.u40 * a.u33 != 0
|| a.u40 * a.u40 != 0)
abort ();
if (a.u33 * a.u41 != 0x10000000000ULL
|| a.u40 * a.u41 != 0x10000000000ULL
|| a.u41 * a.u33 != 0x10000000000ULL
|| a.u41 * a.u40 != 0x10000000000ULL
|| a.u41 * a.u41 != 0x10000000000ULL)
abort ();
if (b.u33 + b.u33 != 0)
abort ();
if (b.u33 + b.u40 != 0x200000000ULL
|| b.u33 + b.u41 != 0x200000000ULL
|| b.u40 + b.u33 != 0x200000000ULL
|| b.u40 + b.u40 != 0x200000000ULL
|| b.u40 + b.u41 != 0x200000000ULL
|| b.u41 + b.u33 != 0x200000000ULL
|| b.u41 + b.u40 != 0x200000000ULL
|| b.u41 + b.u41 != 0x200000000ULL)
abort ();
if (a.u33 - b.u33 != 0x100100000ULL
|| a.u33 - b.u40 != 0xFF00100000ULL
|| a.u33 - b.u41 != 0x1FF00100000ULL
|| a.u40 - b.u33 != 0xFF00100000ULL
|| a.u40 - b.u40 != 0xFF00100000ULL
|| a.u40 - b.u41 != 0x1FF00100000ULL
|| a.u41 - b.u33 != 0x1FF00100000ULL
|| a.u41 - b.u40 != 0x1FF00100000ULL
|| a.u41 - b.u41 != 0x1FF00100000ULL)
abort ();
if (++c.u33 != 0 || --c.u40 != 0xFFFFFFFFFFULL || c.u41-- != 0)
abort ();
exit (0);
}
|
