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macros: fix alignment issue reported by clang

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char_device.c:131:52: warning: cast from 'uint8_t *'
(aka 'unsigned char *') to 'SpiceCharDeviceMsgToClientItem *'
(aka 'struct SpiceCharDeviceMsgToClientItem *')
increases required alignment from 1 to 8 [-Wcast-align]

 SpiceCharDeviceMsgToClientItem *msg_item = SPICE_CONTAINEROF(item,
                                            ^~~~~~~~~~~~~~~~~~~~~~~

../spice-common/spice-protocol/spice/macros.h:142:6: note: expanded
from macro 'SPICE_CONTAINEROF'

 ((struct_type *)((uint8_t *)(ptr) - SPICE_OFFSETOF(struct_type, member)))
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This commit is contained in:
Victor Toso 2015-08-14 18:24:23 +02:00 committed by Frediano Ziglio
parent fa19ebb83f
commit 39be7a8fce
1 changed files with 1 additions and 1 deletions
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2
spice/macros.h
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@ -140,7 +140,7 @@
#endif
#define SPICE_CONTAINEROF(ptr, struct_type, member) \
((struct_type *)((uint8_t *)(ptr) - SPICE_OFFSETOF(struct_type, member)))
((struct_type *)(void *)((uint8_t *)(ptr) - SPICE_OFFSETOF(struct_type, member)))
#define SPICE_MEMBER_P(struct_p, struct_offset) \
((gpointer) ((guint8*) (struct_p) + (glong) (struct_offset)))