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clang: Fix the "expression result unused" warning.

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This commit makes macro function "ASSIGN_CONTAINER()" evaluates
to "(void)0". This is to avoid the 'clang' warning: "expression
result unused", since most of time, the final evaluated value
is not used.

Signed-off-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Alex Wang
2013-07-22 09:19:57 -07:00
committed by Ben Pfaff
parent 55d2690646
commit 33e191a01b
6 changed files with 13 additions and 13 deletions
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2
lib/hindex.h
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@@ -147,7 +147,7 @@ struct hindex_node *hindex_node_with_hash(const struct hindex *, size_t hash);
#define HINDEX_FOR_EACH_SAFE(NODE, NEXT, MEMBER, HINDEX) \
for (ASSIGN_CONTAINER(NODE, hindex_first(HINDEX), MEMBER); \
(NODE != OBJECT_CONTAINING(NULL, NODE, MEMBER) \
? ASSIGN_CONTAINER(NEXT, hindex_next(HINDEX, &(NODE)->MEMBER), MEMBER) \
? ASSIGN_CONTAINER(NEXT, hindex_next(HINDEX, &(NODE)->MEMBER), MEMBER), 1 \
: 0); \
(NODE) = (NEXT))