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Avoid warning from shifting

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This commit is contained in:
Ulrich Drepper
2011-11-12 01:31:29 -05:00
parent 5e2b63c658
commit 294ce12680
2 changed files with 9 additions and 2 deletions
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8
sysdeps/unix/sysv/linux/internal_statvfs.c
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@ -237,9 +237,13 @@ INTERNAL_STATVFS (const char *name, struct STATVFS *buf,
buf->f_files = fsbuf->f_files;
buf->f_ffree = fsbuf->f_ffree;
if (sizeof (buf->f_fsid) == sizeof (fsbuf->f_fsid))
/* The shifting uses 'unsigned long long int' even though the target
field might only have 32 bits. This is OK since the 'if' branch
is not used in this case but the compiler would still generate
warnings. */
buf->f_fsid = ((fsbuf->f_fsid.__val[0]
& ((1UL << (8 * sizeof (fsbuf->f_fsid.__val[0]))) - 1))
| ((unsigned long int) fsbuf->f_fsid.__val[1]
& ((1ULL << (8 * sizeof (fsbuf->f_fsid.__val[0]))) - 1))
| ((unsigned long long int) fsbuf->f_fsid.__val[1]
<< (8 * (sizeof (buf->f_fsid)
- sizeof (fsbuf->f_fsid.__val[0])))));
else