Remove prototypes with empty declarations (#12020)

Technically declaring a prototype with an empty declaration has been deprecated since the early days of C, but we never got a warning for it. C2x will apparently be introducing a breaking change if you are using this type of declarator, so Clang 15 has started issuing a warning with -pedantic. Although not apparently a problem for any of the compiler we build on, if feels like the right thing is to properly adhere to the C standard and use (void).

1 files changed, 2 insertions, 2 deletions

diff --git a/src/pubsub.c b/src/pubsub.c
index 2bbe40380..ed7350843 100644
--- a/src/pubsub.c
+++ b/src/pubsub.c
@@ -207,12 +207,12 @@ void addReplyPubsubPatUnsubscribed(client *c, robj *pattern) {
  *----------------------------------------------------------------------------*/
 
 /* Return the number of pubsub channels + patterns is handled. */
-int serverPubsubSubscriptionCount() {
+int serverPubsubSubscriptionCount(void) {
     return dictSize(server.pubsub_channels) + dictSize(server.pubsub_patterns);
 }
 
 /* Return the number of pubsub shard level channels is handled. */
-int serverPubsubShardSubscriptionCount() {
+int serverPubsubShardSubscriptionCount(void) {
     return dictSize(server.pubsubshard_channels);
 }