Add __attribute__((const, pure, format)) in various places

I'm assuming that it's fine if a _const_ or _pure_ function
calls assert. It is assumed that the assert won't trigger,
and even if it does, it can only trigger on the first call
with a given set of parameters, and we don't care if the
compiler moves the order of calls.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/journal/lookup3.h b/src/journal/lookup3.h
index 502b42c20..3224473a6 100644
--- a/src/journal/lookup3.h
+++ b/src/journal/lookup3.h
@@ -5,13 +5,15 @@
 #include <inttypes.h>
 #include <sys/types.h>
 
-uint32_t jenkins_hashword(const uint32_t *k, size_t length, uint32_t initval);
+#include "macro.h"
+
+uint32_t jenkins_hashword(const uint32_t *k, size_t length, uint32_t initval) _pure_;
 void jenkins_hashword2(const uint32_t *k, size_t length, uint32_t *pc, uint32_t *pb);
 
-uint32_t jenkins_hashlittle(const void *key, size_t length, uint32_t initval);
+uint32_t jenkins_hashlittle(const void *key, size_t length, uint32_t initval) _pure_;
 void jenkins_hashlittle2(const void *key, size_t length, uint32_t *pc, uint32_t *pb);
 
-uint32_t jenkins_hashbig(const void *key, size_t length, uint32_t initval);
+uint32_t jenkins_hashbig(const void *key, size_t length, uint32_t initval) _pure_;
 
 static inline uint64_t hash64(const void *data, size_t length) {
         uint32_t a = 0, b = 0;