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-rw-r--r--tests/auto/qmodbuspdu/tst_qmodbuspdu.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/auto/qmodbuspdu/tst_qmodbuspdu.cpp b/tests/auto/qmodbuspdu/tst_qmodbuspdu.cpp
index f442344..4472131 100644
--- a/tests/auto/qmodbuspdu/tst_qmodbuspdu.cpp
+++ b/tests/auto/qmodbuspdu/tst_qmodbuspdu.cpp
@@ -856,7 +856,7 @@ private slots:
QCOMPARE(QModbusRequest::calculateDataSize(wfrRequest), 1 + longData.size());
longData = QByteArray(4 + 128, ' ');
- longData[4] = 128;
+ longData[4] = char(128);
const QModbusRequest wmcRequest(QModbusPdu::WriteMultipleCoils, longData);
QCOMPARE(QModbusRequest::calculateDataSize(wmcRequest), 1 + longData.size());