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authorSebastian Hahn <sebastian@torproject.org>2014-02-13 08:25:08 +0100
committerNick Mathewson <nickm@torproject.org>2014-02-14 23:43:15 -0500
commit3f567f529f88a7430278b9a2135abb70af109bde (patch)
tree8044b2b3592eb3ba77d15acb3fa25142b464e0bf /src/common/compat.h
parentd6e6eaba601d87ff18d20c1766b3f8fcac69e77f (diff)
downloadtor-3f567f529f88a7430278b9a2135abb70af109bde.tar
tor-3f567f529f88a7430278b9a2135abb70af109bde.tar.gz
gcc/clang: Mark macro-generated functions as possible unused
clang 3.4 introduced a new by-default warning about unused static functions, which we triggered heavily for the hashtable and map function generating macros. We can use __attribute__ ((unused)) (thanks nickm for the suggestion :-) ) to silence these warnings.
Diffstat (limited to 'src/common/compat.h')
-rw-r--r--src/common/compat.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/common/compat.h b/src/common/compat.h
index 8ab719052..51fb8c527 100644
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -162,6 +162,7 @@ extern INLINE double U64_TO_DBL(uint64_t x) {
*
* #define ATTR_NONNULL(x) __attribute__((nonnull x)) */
#define ATTR_NONNULL(x)
+#define ATTR_UNUSED __attribute__ ((unused))
/** Macro: Evaluates to <b>exp</b> and hints the compiler that the value
* of <b>exp</b> will probably be true.
@@ -185,6 +186,7 @@ extern INLINE double U64_TO_DBL(uint64_t x) {
#define ATTR_MALLOC
#define ATTR_NORETURN
#define ATTR_NONNULL(x)
+#define ATTR_UNUSED
#define PREDICT_LIKELY(exp) (exp)
#define PREDICT_UNLIKELY(exp) (exp)
#endif