From f7ca97b823656d1fc130d7066d1267700b567f02 Mon Sep 17 00:00:00 2001
From: Sanjit Bhat <sanjit.bhat@gmail.com>
Date: Sun, 24 Nov 2024 23:20:19 -0500
Subject: [PATCH] use std for overflow check

---
 kt/client.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kt/client.go b/kt/client.go
index eeaabd3..723442f 100644
--- a/kt/client.go
+++ b/kt/client.go
@@ -34,7 +34,7 @@ func checkDig(servSigPk []byte, seenDigs map[uint64]*SigDig, dig *SigDig) *Clien
 		return stdErr
 	}
 	// epoch not too high, which would overflow c.nextEpoch.
-	if dig.Epoch+1 == 0 {
+	if !std.SumNoOverflow(dig.Epoch, 1) {
 		return stdErr
 	}
 	// agrees with prior digs.