diff --git a/src/app/tape/tmainwindow.cpp b/src/app/tape/tmainwindow.cpp
index a32825a03..d529556ef 100644
--- a/src/app/tape/tmainwindow.cpp
+++ b/src/app/tape/tmainwindow.cpp
@@ -3207,18 +3207,18 @@ void TMainWindow::ImportIndividualMeasurements(const QxtCsvModel &csv)
         }
     }
 
-    for(int i=0; i < measurements.size(); ++i)
+    for(auto im : qAsConst(measurements))
     {
-        m->AddEmpty(measurements.at(i).name, measurements.at(i).value);
+        m->AddEmpty(im.name, im.value);
 
-        if (not measurements.at(i).fullName.isEmpty())
+        if (not im.fullName.isEmpty())
         {
-            m->SetMFullName(measurements.at(i).name, measurements.at(i).fullName);
+            m->SetMFullName(im.name, im.fullName);
         }
 
-        if (not measurements.at(i).description.isEmpty())
+        if (not im.description.isEmpty())
         {
-            m->SetMDescription(measurements.at(i).name, measurements.at(i).description);
+            m->SetMDescription(im.name, im.description);
         }
     }
 
@@ -3317,21 +3317,21 @@ void TMainWindow::ImportMultisizeMeasurements(const QxtCsvModel &csv)
         }
     }
 
-    for(int i=0; i < measurements.size(); ++i)
+    for(auto mm : qAsConst(measurements))
     {
-        m->AddEmpty(measurements.at(i).name);
-        m->SetMBaseValue(measurements.at(i).name, measurements.at(i).base);
-        m->SetMSizeIncrease(measurements.at(i).name, measurements.at(i).sizeIncrease);
-        m->SetMHeightIncrease(measurements.at(i).name, measurements.at(i).heightIncrease);
+        m->AddEmpty(mm.name);
+        m->SetMBaseValue(mm.name, mm.base);
+        m->SetMSizeIncrease(mm.name, mm.sizeIncrease);
+        m->SetMHeightIncrease(mm.name, mm.heightIncrease);
 
-        if (not measurements.at(i).fullName.isEmpty())
+        if (not mm.fullName.isEmpty())
         {
-            m->SetMFullName(measurements.at(i).name, measurements.at(i).fullName);
+            m->SetMFullName(mm.name, mm.fullName);
         }
 
-        if (not measurements.at(i).description.isEmpty())
+        if (not mm.description.isEmpty())
         {
-            m->SetMDescription(measurements.at(i).name, measurements.at(i).description);
+            m->SetMDescription(mm.name, mm.description);
         }
     }
 
diff --git a/src/app/valentina/dialogs/dialogincrements.cpp b/src/app/valentina/dialogs/dialogincrements.cpp
index e388b0946..d623a1cec 100644
--- a/src/app/valentina/dialogs/dialogincrements.cpp
+++ b/src/app/valentina/dialogs/dialogincrements.cpp
@@ -585,15 +585,14 @@ bool DialogIncrements::IncrementUsed(const QString &name) const
 {
     const QVector<VFormulaField> expressions = doc->ListExpressions();
 
-    for(int i = 0; i < expressions.size(); ++i)
+    for(auto field : expressions)
     {
-        if (expressions.at(i).expression.indexOf(name) != -1)
+        if (field.expression.indexOf(name) != -1)
         {
             // Eval formula
             try
             {
-                QScopedPointer<qmu::QmuTokenParser> cal(new qmu::QmuTokenParser(expressions.at(i).expression, false,
-                                                                                false));
+                QScopedPointer<qmu::QmuTokenParser> cal(new qmu::QmuTokenParser(field.expression, false, false));
 
                 // Tokens (variables, measurements)
                 if (cal->GetTokens().values().contains(name))
diff --git a/src/app/valentina/dialogs/dialoglayoutsettings.cpp b/src/app/valentina/dialogs/dialoglayoutsettings.cpp
index 95fd20c3d..6324c1572 100644
--- a/src/app/valentina/dialogs/dialoglayoutsettings.cpp
+++ b/src/app/valentina/dialogs/dialoglayoutsettings.cpp
@@ -746,9 +746,9 @@ void DialogLayoutSettings::InitPrinter()
     QStringList printerNames;
 #if QT_VERSION < QT_VERSION_CHECK(5, 3, 0)
     const QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();
-    for(int i = 0; i < printers.size(); ++i)
+    for(auto printer : printers)
     {
-        const QString name = printers.at(i).printerName();
+        const QString name = printer.printerName();
         if (not name.isEmpty())
         {
             printerNames.append(name);
diff --git a/src/app/valentina/dialogs/dialogpatternmaterials.cpp b/src/app/valentina/dialogs/dialogpatternmaterials.cpp
index 73e9a90fb..3db107744 100644
--- a/src/app/valentina/dialogs/dialogpatternmaterials.cpp
+++ b/src/app/valentina/dialogs/dialogpatternmaterials.cpp
@@ -44,11 +44,11 @@ QStringList PrepareKnowMaterials(const QStringList &patternMaterials, bool remem
 
     if (rememberPM)
     {
-        for(int i=0; i < patternMaterials.size(); ++i)
+        for(auto &patternMaterial : patternMaterials)
         {
-            if (not patternMaterials.at(i).isEmpty() && not knownMaterials.contains(patternMaterials.at(i)))
+            if (not patternMaterial.isEmpty() && not knownMaterials.contains(patternMaterial))
             {
-                knownMaterials.append(patternMaterials.at(i));
+                knownMaterials.append(patternMaterial);
             }
         }
     }
diff --git a/src/libs/qmuparser/qmudef.cpp b/src/libs/qmuparser/qmudef.cpp
index 92eee1476..0233e1d65 100644
--- a/src/libs/qmuparser/qmudef.cpp
+++ b/src/libs/qmuparser/qmudef.cpp
@@ -292,26 +292,26 @@ QString NameRegExp()
         QString decimalPoints;
         QString groupSeparators;
 
-        for(int i = 0; i < allLocales.size(); ++i)
+        for(auto &locale : allLocales)
         {
-            if (not positiveSigns.contains(allLocales.at(i).positiveSign()))
+            if (not positiveSigns.contains(locale.positiveSign()))
             {
-                positiveSigns.append(allLocales.at(i).positiveSign());
+                positiveSigns.append(locale.positiveSign());
             }
 
-            if (not negativeSigns.contains(allLocales.at(i).negativeSign()))
+            if (not negativeSigns.contains(locale.negativeSign()))
             {
-                negativeSigns.append(allLocales.at(i).negativeSign());
+                negativeSigns.append(locale.negativeSign());
             }
 
-            if (not decimalPoints.contains(allLocales.at(i).decimalPoint()))
+            if (not decimalPoints.contains(locale.decimalPoint()))
             {
-                decimalPoints.append(allLocales.at(i).decimalPoint());
+                decimalPoints.append(locale.decimalPoint());
             }
 
-            if (not groupSeparators.contains(allLocales.at(i).groupSeparator()))
+            if (not groupSeparators.contains(locale.groupSeparator()))
             {
-                groupSeparators.append(allLocales.at(i).groupSeparator());
+                groupSeparators.append(locale.groupSeparator());
             }
         }
 
diff --git a/src/libs/vdxf/vdxfengine.cpp b/src/libs/vdxf/vdxfengine.cpp
index 41b6b5e52..37dc493fa 100644
--- a/src/libs/vdxf/vdxfengine.cpp
+++ b/src/libs/vdxf/vdxfengine.cpp
@@ -622,10 +622,8 @@ bool VDxfEngine::ExportToAAMA(const QVector<VLayoutPiece> &details)
 
     ExportAAMAGlobalText(input, details);
 
-    for(int i = 0; i < details.size(); ++i)
+    for(auto &detail : details)
     {
-        const VLayoutPiece &detail = details.at(i);
-
         dx_ifaceBlock *detailBlock = new dx_ifaceBlock();
 
         QString blockName = detail.GetName();
@@ -736,11 +734,10 @@ void VDxfEngine::ExportAAMANotch(dx_ifaceBlock *detailBlock, const VLayoutPiece
 {
     if (detail.IsSeamAllowance())
     {
-        QVector<QLineF> passmarks = detail.GetPassmarks();
-        for(int i = 0; i < passmarks.size(); ++i)
+        const QVector<QLineF> passmarks = detail.GetPassmarks();
+        for(auto passmark : passmarks)
         {
-            DRW_Entity *e = AAMALine(passmarks.at(i), "4");
-            if (e)
+            if (DRW_Entity *e = AAMALine(passmark, "4"))
             {
                 detailBlock->ent.push_back(e);
             }
diff --git a/src/libs/vgeometry/vcubicbezierpath.cpp b/src/libs/vgeometry/vcubicbezierpath.cpp
index ed3b716ff..58d49913c 100644
--- a/src/libs/vgeometry/vcubicbezierpath.cpp
+++ b/src/libs/vgeometry/vcubicbezierpath.cpp
@@ -83,9 +83,9 @@ VCubicBezierPath VCubicBezierPath::Rotate(const QPointF &originPoint, qreal degr
 {
     const QVector<VPointF> points = GetCubicPath();
     VCubicBezierPath curve;
-    for(int i=0; i < points.size(); ++i)
+    for(auto &point : points)
     {
-        curve.append(points.at(i).Rotate(originPoint, degrees));
+        curve.append(point.Rotate(originPoint, degrees));
     }
     curve.setName(name() + prefix);
     curve.SetColor(GetColor());
@@ -99,9 +99,9 @@ VCubicBezierPath VCubicBezierPath::Flip(const QLineF &axis, const QString &prefi
 {
     const QVector<VPointF> points = GetCubicPath();
     VCubicBezierPath curve;
-    for(int i=0; i < points.size(); ++i)
+    for(auto &point : points)
     {
-        curve.append(points.at(i).Flip(axis));
+        curve.append(point.Flip(axis));
     }
     curve.setName(name() + prefix);
     curve.SetColor(GetColor());
@@ -115,9 +115,9 @@ VCubicBezierPath VCubicBezierPath::Move(qreal length, qreal angle, const QString
 {
     const QVector<VPointF> points = GetCubicPath();
     VCubicBezierPath curve;
-    for(int i=0; i < points.size(); ++i)
+    for(auto &point : points)
     {
-        curve.append(points.at(i).Move(length, angle));
+        curve.append(point.Move(length, angle));
     }
     curve.setName(name() + prefix);
     curve.SetColor(GetColor());
diff --git a/src/libs/vlayout/vlayoutpiece.cpp b/src/libs/vlayout/vlayoutpiece.cpp
index 006ea75c2..7b5f8b4ba 100644
--- a/src/libs/vlayout/vlayoutpiece.cpp
+++ b/src/libs/vlayout/vlayoutpiece.cpp
@@ -305,9 +305,9 @@ QVector<QPointF> CorrectPosition(const QRectF &parentBoundingRect, QVector<QPoin
 QVector<VSAPoint> PrepareAllowance(const QVector<QPointF> &points)
 {
     QVector<VSAPoint> allowancePoints;
-    for(int i = 0; i < points.size(); ++i)
+    for(auto point : points)
     {
-        allowancePoints.append(VSAPoint(points.at(i)));
+        allowancePoints.append(VSAPoint(point));
     }
     return allowancePoints;
 }
@@ -348,9 +348,10 @@ QStringList PieceLabelText(const QVector<QPointF> &labelShape, const VTextManage
 QVector<VLayoutPlaceLabel> ConvertPlaceLabels(const VPiece &piece, const VContainer *pattern)
 {
     QVector<VLayoutPlaceLabel> labels;
-    for(int i=0; i < piece.GetPlaceLabels().size(); ++i)
+    const QVector<quint32> placeLabels = piece.GetPlaceLabels();
+    for(auto placeLabel : placeLabels)
     {
-        const auto label = pattern->GeometricObject<VPlaceLabelItem>(piece.GetPlaceLabels().at(i));
+        const auto label = pattern->GeometricObject<VPlaceLabelItem>(placeLabel);
         VLayoutPlaceLabel layoutLabel;
         layoutLabel.shape = label->LabelShape();
         layoutLabel.center = label->toQPointF();
diff --git a/src/libs/vpatterndb/vcontainer.cpp b/src/libs/vpatterndb/vcontainer.cpp
index 1ee71abfd..1d16a0491 100644
--- a/src/libs/vpatterndb/vcontainer.cpp
+++ b/src/libs/vpatterndb/vcontainer.cpp
@@ -591,11 +591,11 @@ void VContainer::ClearUniqueIncrementNames()
     const QList<QString> list = uniqueNames.toList();
     ClearUniqueNames();
 
-    for(int i = 0; i < list.size(); ++i)
+    for(auto &name : list)
     {
-        if (not list.at(i).startsWith('#'))
+        if (not name.startsWith('#'))
         {
-            uniqueNames.insert(list.at(i));
+            uniqueNames.insert(name);
         }
     }
 }
diff --git a/src/libs/vpatterndb/vpiece.cpp b/src/libs/vpatterndb/vpiece.cpp
index e7adc718a..941583c24 100644
--- a/src/libs/vpatterndb/vpiece.cpp
+++ b/src/libs/vpatterndb/vpiece.cpp
@@ -448,11 +448,11 @@ QVector<QLineF> VPiece::PassmarksLines(const VContainer *data, const QVector<QPo
 QVector<PlaceLabelImg> VPiece::PlaceLabelPoints(const VContainer *data) const
 {
     QVector<PlaceLabelImg> points;
-    for(int i=0; i < d->m_placeLabels.size(); ++i)
+    for(auto placeLabel : d->m_placeLabels)
     {
         try
         {
-            const auto label = data->GeometricObject<VPlaceLabelItem>(d->m_placeLabels.at(i));
+            const auto label = data->GeometricObject<VPlaceLabelItem>(placeLabel);
             points.append(label->LabelShape());
         }
         catch (const VExceptionBadId &e)
diff --git a/src/libs/vpatterndb/vpiecepath.cpp b/src/libs/vpatterndb/vpiecepath.cpp
index 9b3723970..b629ad35d 100644
--- a/src/libs/vpatterndb/vpiecepath.cpp
+++ b/src/libs/vpatterndb/vpiecepath.cpp
@@ -995,9 +995,9 @@ QVector<VSAPoint> VPiecePath::CurveSeamAllowanceSegment(const VContainer *data,
     qreal w2 = end.GetSABefore();
     if (w1 < 0 && w2 < 0)
     {// no local widths
-        for(int i = 0; i < points.size(); ++i)
+        for(auto point : points)
         {
-            VSAPoint p(points.at(i));
+            VSAPoint p(point);
             if (i == 0)
             { // first point
                 p.SetSAAfter(begin.GetSAAfter());
@@ -1036,9 +1036,9 @@ QVector<VSAPoint> VPiecePath::CurveSeamAllowanceSegment(const VContainer *data,
 
         qreal length = 0; // how much we handle
 
-        for(int i = 1; i < points.size(); ++i)
+        for(auto point : points)
         {
-            p = VSAPoint(points.at(i));
+            p = VSAPoint(point);
 
             if (i == points.size() - 1)
             {// last point
diff --git a/src/libs/vtools/tools/vabstracttool.cpp b/src/libs/vtools/tools/vabstracttool.cpp
index b788279a8..efd09b52e 100644
--- a/src/libs/vtools/tools/vabstracttool.cpp
+++ b/src/libs/vtools/tools/vabstracttool.cpp
@@ -411,12 +411,12 @@ void VAbstractTool::ToolCreation(const Source &typeCreation)
 //---------------------------------------------------------------------------------------------------------------------
 VToolRecord VAbstractTool::GetRecord(const quint32 id, const Tool &toolType, VAbstractPattern *doc)
 {
-    QVector<VToolRecord> *history = doc->getHistory();
-    for(int i = 0; i < history->size(); ++i)
+    const QVector<VToolRecord> *history = doc->getHistory();
+    for(auto &record : *history)
     {
-        if (history->at(i).getId() == id && history->at(i).getTypeTool() == toolType)
+        if (record.getId() == id && record.getTypeTool() == toolType)
         {
-            return history->at(i);
+            return record;
         }
     }
     return VToolRecord();
diff --git a/src/libs/vtools/tools/vtoolseamallowance.cpp b/src/libs/vtools/tools/vtoolseamallowance.cpp
index edc784cb3..a29575c49 100644
--- a/src/libs/vtools/tools/vtoolseamallowance.cpp
+++ b/src/libs/vtools/tools/vtoolseamallowance.cpp
@@ -1240,9 +1240,9 @@ void VToolSeamAllowance::keyReleaseEvent(QKeyEvent *event)
                     {
                         qApp->getUndoStack()->beginMacro(tr("multi deletion"));
 
-                        for(int i=0; i < toolList.size(); ++i)
+                        for(auto tool : toolList)
                         {
-                            toolList.at(i)->RemoveWithConfirm(false);
+                            tool->RemoveWithConfirm(false);
                         }
                     }
                     DeleteToolWithConfirm(false);
@@ -1892,9 +1892,9 @@ QList<VToolSeamAllowance *> VToolSeamAllowance::SelectedTools() const
 
         if (not list.isEmpty())
         {
-            for(int i=0; i < list.size(); ++i)
+            for(auto item : list)
             {
-                VToolSeamAllowance *tool = qgraphicsitem_cast<VToolSeamAllowance *>(list.at(i));
+                VToolSeamAllowance *tool = qgraphicsitem_cast<VToolSeamAllowance *>(item);
                 if (tool != nullptr && tool->getId() != m_id)
                 {
                     tools.append(tool);
@@ -2011,9 +2011,8 @@ QVector<CustomSARecord> VToolSeamAllowance::DuplicateCustomSARecords(const QVect
                                                                      const QMap<quint32, quint32> &replacements)
 {
     QVector<CustomSARecord> newRecords;
-    for(int i=0; i < records.size(); ++i)
+    for(auto record : records)
     {
-        CustomSARecord record = records.at(i);
         record.path = DuplicatePiecePath(record.path, initData);
         record.startPoint = replacements.value(record.startPoint, NULL_ID);
         record.endPoint = replacements.value(record.endPoint, NULL_ID);
@@ -2027,9 +2026,9 @@ QVector<quint32> VToolSeamAllowance::DuplicateInternalPaths(const QVector<quint3
                                                             const VToolSeamAllowanceInitData &initData)
 {
     QVector<quint32> newPaths;
-    for(int i=0; i < iPaths.size(); ++i)
+    for(auto iPath : iPaths)
     {
-        newPaths.append(DuplicatePiecePath(iPaths.at(i), initData));
+        newPaths.append(DuplicatePiecePath(iPath, initData));
     }
     return newPaths;
 }
@@ -2039,11 +2038,11 @@ QVector<quint32> VToolSeamAllowance::DuplicatePins(const QVector<quint32> &pins,
                                                    const VToolSeamAllowanceInitData &initData)
 {
     QVector<quint32> newPins;
-    for(int i=0; i < pins.size(); ++i)
+    for(auto p : pins)
     {
-        QSharedPointer<VPointF> pin = initData.data->GeometricObject<VPointF>(pins.at(i));
+        QSharedPointer<VPointF> pin = initData.data->GeometricObject<VPointF>(p);
 
-        VAbstractNode *tool = qobject_cast<VAbstractNode *>(VAbstractPattern::getTool(pins.at(i)));
+        VAbstractNode *tool = qobject_cast<VAbstractNode *>(VAbstractPattern::getTool(p));
         SCASSERT(tool != nullptr)
 
         VToolPinInitData initNodeData;
@@ -2068,10 +2067,10 @@ QVector<quint32> VToolSeamAllowance::DuplicatePlaceLabels(const QVector<quint32>
                                                           const VToolSeamAllowanceInitData &initData)
 {
     QVector<quint32> newPlaceLabels;
-    for(int i=0; i < placeLabels.size(); ++i)
+    for(auto placeLabel : placeLabels)
     {
-        QSharedPointer<VPlaceLabelItem> label = initData.data->GeometricObject<VPlaceLabelItem>(placeLabels.at(i));
-        VAbstractNode *tool = qobject_cast<VAbstractNode *>(VAbstractPattern::getTool(placeLabels.at(i)));
+        QSharedPointer<VPlaceLabelItem> label = initData.data->GeometricObject<VPlaceLabelItem>(placeLabel);
+        VAbstractNode *tool = qobject_cast<VAbstractNode *>(VAbstractPattern::getTool(placeLabel));
         SCASSERT(tool != nullptr)
 
         VToolPlaceLabelInitData initNodeData;
diff --git a/src/libs/vtools/tools/vtooluniondetails.cpp b/src/libs/vtools/tools/vtooluniondetails.cpp
index bf3a395db..9acbee524 100644
--- a/src/libs/vtools/tools/vtooluniondetails.cpp
+++ b/src/libs/vtools/tools/vtooluniondetails.cpp
@@ -1161,9 +1161,9 @@ void CreateUnitedDetailCSA(VPiece &newDetail, const VPiece &d, QVector<quint32>
                            quint32 pRotate, qreal angle)
 {
     QVector<quint32> nodeChildren;
-    for(int i=0; i < d.GetCustomSARecords().size(); ++i)
+    const QVector<CustomSARecord> records = d.GetCustomSARecords();
+    for(auto record : records)
     {
-        CustomSARecord record = d.GetCustomSARecords().at(i);
         const VPiecePath path = initData.data->GetPiecePath(record.path);
         VPiecePath newPath = path;
         newPath.Clear();//Clear nodes
@@ -1220,9 +1220,10 @@ void CreateUnitedDetailInternalPaths(VPiece &newDetail, const VPiece &d, QVector
                                      qreal dy, quint32 pRotate, qreal angle)
 {
     QVector<quint32> nodeChildren;
-    for(int i=0; i < d.GetInternalPaths().size(); ++i)
+    const QVector<quint32> internalPaths = d.GetInternalPaths();
+    for(auto iPath : internalPaths)
     {
-        const VPiecePath path = initData.data->GetPiecePath(d.GetInternalPaths().at(i));
+        const VPiecePath path = initData.data->GetPiecePath(iPath);
         VPiecePath newPath = path;
         newPath.Clear();//Clear nodes
 
@@ -1280,9 +1281,10 @@ void CreateUnitedDetailPins(VPiece &newDetail, const VPiece &d, QVector<quint32>
                             quint32 pRotate, qreal angle)
 {
     QVector<quint32> nodeChildren;
-    for(int i=0; i < d.GetPins().size(); ++i)
+    const QVector<quint32> pins = d.GetPins();
+    for(auto pin : pins)
     {
-        const quint32 id = AddPin(d.GetPins().at(i), initData, children, drawName, dx, dy, pRotate, angle);
+        const quint32 id = AddPin(pin, initData, children, drawName, dx, dy, pRotate, angle);
         newDetail.GetPins().append(id);
     }
     children += nodeChildren;
@@ -1294,10 +1296,10 @@ void CreateUnitedDetailPlaceLabels(VPiece &newDetail, const VPiece &d, QVector<q
                                    qreal dy, quint32 pRotate, qreal angle)
 {
     QVector<quint32> nodeChildren;
-    for(int i=0; i < d.GetPlaceLabels().size(); ++i)
+    const QVector<quint32> placeLabels = d.GetPlaceLabels();
+    for(auto placeLabel : placeLabels)
     {
-        const quint32 id = AddPlaceLabel(d.GetPlaceLabels().at(i), initData, children, drawName, dx, dy, pRotate,
-                                         angle);
+        const quint32 id = AddPlaceLabel(placeLabel, initData, children, drawName, dx, dy, pRotate, angle);
         newDetail.GetPlaceLabels().append(id);
     }
     children += nodeChildren;
@@ -1645,9 +1647,9 @@ void VToolUnionDetails::incrementReferens()
     if (_referens == 1)
     {
         const QVector<quint32> objects = GetReferenceObjects();
-        for(int i = 0; i < objects.size(); ++i)
+        for(auto object : objects)
         {
-            doc->IncrementReferens(objects.at(i));
+            doc->IncrementReferens(object);
         }
 
         QDomElement domElement = doc->elementById(m_id, getTagName());
@@ -1665,9 +1667,9 @@ void VToolUnionDetails::decrementReferens()
     if (_referens == 0)
     {
         const QVector<quint32> objects = GetReferenceObjects();
-        for(int i = 0; i < objects.size(); ++i)
+        for(auto object : objects)
         {
-            doc->DecrementReferens(objects.at(i));
+            doc->DecrementReferens(object);
         }
 
         QDomElement domElement = doc->elementById(m_id, getTagName());
diff --git a/src/test/ValentinaTest/tst_nameregexp.cpp b/src/test/ValentinaTest/tst_nameregexp.cpp
index abd79e3a5..4432a3557 100644
--- a/src/test/ValentinaTest/tst_nameregexp.cpp
+++ b/src/test/ValentinaTest/tst_nameregexp.cpp
@@ -49,14 +49,14 @@ void TST_NameRegExp::TestNameRegExp_data()
     const QList<QLocale> allLocales =
             QLocale::matchingLocales(QLocale::AnyLanguage, QLocale::AnyScript, QLocale::AnyCountry);
 
-    for(int i = 0; i < allLocales.size(); ++i)
+    for(auto &locale : allLocales)
     {
-        INIT_LOCALE_VARIABLES(allLocales.at(i));
+        INIT_LOCALE_VARIABLES(locale);
         Q_UNUSED(positiveSign)
         Q_UNUSED(expUpper)
         Q_UNUSED(expLower)
 
-        const QString localeName = allLocales.at(i).name();
+        const QString localeName = locale.name();
         QString tag = localeName+QLatin1String(". First character can't be ")+sign0;
         QTest::newRow(qUtf8Printable(tag)) << sign0+QLatin1String("a") << false;
 
diff --git a/src/test/ValentinaTest/tst_qmutokenparser.cpp b/src/test/ValentinaTest/tst_qmutokenparser.cpp
index 8650b571d..693baf289 100644
--- a/src/test/ValentinaTest/tst_qmutokenparser.cpp
+++ b/src/test/ValentinaTest/tst_qmutokenparser.cpp
@@ -84,9 +84,8 @@ void TST_QmuTokenParser::TokenFromUser_data()
 
     const QList<QLocale> allLocales =
             QLocale::matchingLocales(QLocale::AnyLanguage, QLocale::AnyScript, QLocale::AnyCountry);
-    for(int i = 0; i < allLocales.size(); ++i)
+    for(auto &locale : allLocales)
     {
-        const QLocale locale = allLocales.at(i);
         PrepareVal(1000.5, locale);
         PrepareVal(-1000.5, locale);
     }
diff --git a/src/test/ValentinaTest/tst_readval.cpp b/src/test/ValentinaTest/tst_readval.cpp
index 7e46024ef..88a3ddae4 100644
--- a/src/test/ValentinaTest/tst_readval.cpp
+++ b/src/test/ValentinaTest/tst_readval.cpp
@@ -50,9 +50,8 @@ void TST_ReadVal::TestReadVal_data()
 
     const QList<QLocale> allLocales =
             QLocale::matchingLocales(QLocale::AnyLanguage, QLocale::AnyScript, QLocale::AnyCountry);
-    for(int i = 0; i < allLocales.size(); ++i)
+    for(auto &locale : allLocales)
     {
-        const QLocale locale = allLocales.at(i);
         PrepareVal(1., locale);
         PrepareVal(1.0, locale);
         PrepareVal(-1.0, locale);
diff --git a/src/test/ValentinaTest/tst_vtranslatevars.cpp b/src/test/ValentinaTest/tst_vtranslatevars.cpp
index ad0d15a5a..5d9bd414b 100644
--- a/src/test/ValentinaTest/tst_vtranslatevars.cpp
+++ b/src/test/ValentinaTest/tst_vtranslatevars.cpp
@@ -58,10 +58,10 @@ void TST_VTranslateVars::TestFormulaFromUser_data()
 
     const QList<QLocale> allLocales =
             QLocale::matchingLocales(QLocale::AnyLanguage, QLocale::AnyScript, QLocale::AnyCountry);
-    for(int i = 0; i < allLocales.size(); ++i)
+    for(auto &locale : allLocales)
     {
-        PrepareValFromUser(1000.5, allLocales.at(i));
-        PrepareValFromUser(-1000.5, allLocales.at(i));
+        PrepareValFromUser(1000.5, locale);
+        PrepareValFromUser(-1000.5, locale);
     }
 }
 
@@ -88,10 +88,10 @@ void TST_VTranslateVars::TestFormulaToUser_data()
 
     const QList<QLocale> allLocales =
             QLocale::matchingLocales(QLocale::AnyLanguage, QLocale::AnyScript, QLocale::AnyCountry);
-    for(int i = 0; i < allLocales.size(); ++i)
+    for(auto &locale : allLocales)
     {
-        PrepareValToUser(1000.5, allLocales.at(i));
-        PrepareValToUser(-1000.5, allLocales.at(i));
+        PrepareValToUser(1000.5, locale);
+        PrepareValToUser(-1000.5, locale);
     }
 }