From cb066d59f5394beb88ac5b92c8a6db51494c9799 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Fri, 21 Apr 2023 21:32:27 +0100
Subject: Don't use &vector.front() for vector which might be empty

Instead just use .data() which safely returns something which might be nullptr, but that's fine.
---
 libpqpp/pq-bulkselectcommand.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'libpqpp/pq-bulkselectcommand.cpp')

diff --git a/libpqpp/pq-bulkselectcommand.cpp b/libpqpp/pq-bulkselectcommand.cpp
index 8c9e1f0..298261e 100644
--- a/libpqpp/pq-bulkselectcommand.cpp
+++ b/libpqpp/pq-bulkselectcommand.cpp
@@ -18,8 +18,8 @@ void
 PQ::BulkSelectCommand::execute()
 {
 	if (!executed) {
-		execRes = c->checkResult(PQexecPrepared(c->conn, prepare(), static_cast<int>(values.size()), &values.front(),
-										 &lengths.front(), &formats.front(), binary),
+		execRes = c->checkResult(PQexecPrepared(c->conn, prepare(), static_cast<int>(values.size()), values.data(),
+										 lengths.data(), formats.data(), binary),
 				PGRES_TUPLES_OK);
 		nTuples = static_cast<decltype(nTuples)>(PQntuples(execRes));
 		tuple = static_cast<decltype(tuple)>(-1);
-- 
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