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, 2 insertions, 2 deletions

diff --git a/src/shared/logs-show.h b/src/shared/logs-show.h
index 5a4c9f24d7..b0f93a661a 100644
--- a/src/shared/logs-show.h
+++ b/src/shared/logs-show.h
@@ -63,5 +63,5 @@ void json_escape(
                 size_t l,
                 OutputFlags flags);
 
-const char* output_mode_to_string(OutputMode m);
-OutputMode output_mode_from_string(const char *s);
+const char* output_mode_to_string(OutputMode m) _const_;
+OutputMode output_mode_from_string(const char *s) _pure_;