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| author | Daniel P. Berrange <berrange@redhat.com> | 2013-09-09 10:02:28 +0100 |
|---|---|---|
| committer | Daniel P. Berrange <berrange@redhat.com> | 2013-11-12 18:02:07 +0000 |
| commit | e4f29984fa6662af4f0a7dea18dc68199248ce11 (patch) | |
| tree | 941efcc99343f42bb3bc1f9a2a7b6e4f8c68cead | |
| parent | a825a495cd7ba38edd5d085db51780a861ae6a0d (diff) | |
| download | libvirt-python-v6-e4f29984fa6662af4f0a7dea18dc68199248ce11.tar.gz libvirt-python-v6-e4f29984fa6662af4f0a7dea18dc68199248ce11.tar.xz libvirt-python-v6-e4f29984fa6662af4f0a7dea18dc68199248ce11.zip | |
Import gnulib's ignore_value macro
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
| -rw-r--r-- | libvirt-utils.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libvirt-utils.h b/libvirt-utils.h index 05c1135..a62db2b 100644 --- a/libvirt-utils.h +++ b/libvirt-utils.h @@ -43,4 +43,15 @@ #define xalloc_oversized(n, s) \ ((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n)) + +/* The __attribute__((__warn_unused_result__)) feature + is available in gcc versions 3.4 and newer, + while the typeof feature has been available since 2.7 at least. */ +#if 3 < __GNUC__ + (4 <= __GNUC_MINOR__) +# define ignore_value(x) \ + (__extension__ ({ __typeof__ (x) __x = (x); (void) __x; })) +#else +# define ignore_value(x) ((void) (x)) +#endif + #endif /* __LIBVIRT_UTILS_H__ */ |