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/login/logind-user.h b/src/login/logind-user.h
index a679d43a3..080354da7 100644
--- a/src/login/logind-user.h
+++ b/src/login/logind-user.h
@@ -80,5 +80,5 @@ extern const DBusObjectPathVTable bus_user_vtable;
 int user_send_signal(User *u, bool new_user);
 int user_send_changed(User *u, const char *properties);
 
-const char* user_state_to_string(UserState s);
-UserState user_state_from_string(const char *s);
+const char* user_state_to_string(UserState s) _const_;
+UserState user_state_from_string(const char *s) _pure_;