use at instead of []

Co-authored-by: Remi Gacogne <github@coredump.fr>

diff --git a/pdns/syncres.cc b/pdns/syncres.cc
index 54334fd4d11184c3ec98adbe1611f40c8d5f271d..443b94fd63e9d0056dc602ab8fe918cb55af6a19 100644 (file)
--- a/pdns/syncres.cc
+++ b/pdns/syncres.cc
@@ -1842,7 +1842,7 @@ int SyncRes::doResolveNoQNameMinimization(const DNSName &qname, const QType qtyp
 
               d_totUsec += lwr.d_usec;
               accountAuthLatency(lwr.d_usec, remoteIP.sin4.sin_family);
-              ++g_stats.authRCode[lwr.d_rcode];
+              ++g_stats.authRCode.at(lwr.d_rcode);
               if (fromCache)
                 *fromCache = true;
 
@@ -5195,7 +5195,7 @@ bool SyncRes::doResolveAtThisIP(const std::string& prefix, const DNSName& qname,
 
   d_totUsec += lwr.d_usec;
   accountAuthLatency(lwr.d_usec, remoteIP.sin4.sin_family);
-  ++g_stats.authRCode[lwr.d_rcode];
+  ++g_stats.authRCode.at(lwr.d_rcode);
 
   if (!dontThrottle) {
     auto dontThrottleNames = g_dontThrottleNames.getLocal();