diff --git a/src/libs/ifc/ifcdef.cpp b/src/libs/ifc/ifcdef.cpp
index eb5565f02..2315b2364 100644
--- a/src/libs/ifc/ifcdef.cpp
+++ b/src/libs/ifc/ifcdef.cpp
@@ -43,15 +43,13 @@ qreal WidthMainLine(Unit patternUnit)
     qreal _widthMainLine = DefWidth;
     switch (patternUnit)
     {
-        case Unit::Mm:
-            _widthMainLine = DefWidth;
-            break;
         case Unit::Cm:
             _widthMainLine = DefWidth/10.0;
             break;
         case Unit::Inch:
             _widthMainLine = DefWidth/25.4;
             break;
+        case Unit::Mm:
         default:
             _widthMainLine = DefWidth;
             break;
diff --git a/src/libs/ifc/xml/vabstractpattern.cpp b/src/libs/ifc/xml/vabstractpattern.cpp
index 8e714f415..fc1d3b9c6 100644
--- a/src/libs/ifc/xml/vabstractpattern.cpp
+++ b/src/libs/ifc/xml/vabstractpattern.cpp
@@ -771,12 +771,10 @@ Unit VAbstractPattern::MUnit() const
         case 0:// mm
             return Unit::Mm;
             break;
-        case 1:// cm
-            return Unit::Cm;
-            break;
         case 2:// in
             return Unit::Inch;
             break;
+        case 1:// cm
         default:
             return Unit::Cm;
             break;
@@ -922,7 +920,6 @@ QMap<GHeights, bool> VAbstractPattern::GetGradationHeights() const
                         return map;
                         break;
                     case 1: // TagSizes
-                        break;
                     default:
                         break;
                 }
@@ -1021,7 +1018,6 @@ void VAbstractPattern::SetGradationHeights(const QMap<GHeights, bool> &options)
                         return;
                         break;
                     case 1: // TagSizes
-                        break;
                     default:
                         break;
                 }
@@ -1081,8 +1077,6 @@ QMap<GSizes, bool> VAbstractPattern::GetGradationSizes() const
                 const QString defValue = trueStr;
                 switch (gTags.indexOf(domElement.tagName()))
                 {
-                    case 0: // TagHeights
-                        break;
                     case 1: // TagSizes
                         if (GetParametrBool(domElement, AttrAll, defValue))
                         {
@@ -1121,6 +1115,7 @@ QMap<GSizes, bool> VAbstractPattern::GetGradationSizes() const
                         map.insert(GSizes::S72, GetParametrBool(domElement, AttrS72, defValue));
                         return map;
                         break;
+                    case 0: // TagHeights
                     default:
                         break;
                 }
@@ -1153,8 +1148,6 @@ void VAbstractPattern::SetGradationSizes(const QMap<GSizes, bool> &options)
             {
                 switch (gTags.indexOf(domElement.tagName()))
                 {
-                    case 0: // TagHeights
-                        break;
                     case 1: // TagSizes
                         SetAttribute(domElement, AttrAll, options.value(GSizes::ALL));
                         if (options.value(GSizes::ALL))
@@ -1220,6 +1213,7 @@ void VAbstractPattern::SetGradationSizes(const QMap<GSizes, bool> &options)
                         emit patternChanged(false);
                         return;
                         break;
+                    case 0: // TagHeights
                     default:
                         break;
                 }
@@ -1509,8 +1503,6 @@ QDomElement VAbstractPattern::CheckTagExists(const QString &tag)
                                          << TagCustomerName << TagSize << TagShowDate << TagShowMeasurements;
         switch (tags.indexOf(tag))
         {
-            case 0: //TagUnit
-                return QDomElement();// Mandatory tag
             case 1: //TagImage
                 element = createElement(TagImage);
                 break;
@@ -1557,6 +1549,7 @@ QDomElement VAbstractPattern::CheckTagExists(const QString &tag)
             case 12: // TagShowMeasurements
                  element = createElement(TagShowMeasurements);
                  break;
+            case 0: //TagUnit (Mandatory tag)
             default:
                 return QDomElement();
         }
diff --git a/src/libs/ifc/xml/vdomdocument.cpp b/src/libs/ifc/xml/vdomdocument.cpp
index ebea2dc6e..cd1683307 100644
--- a/src/libs/ifc/xml/vdomdocument.cpp
+++ b/src/libs/ifc/xml/vdomdocument.cpp
@@ -254,14 +254,10 @@ bool VDomDocument::GetParametrBool(const QDomElement &domElement, const QString
         switch (bools.indexOf(parametr))
         {
             case 0: // true
-                val = true;
-                break;
-            case 1: // false
-                val = false;
-                break;
             case 2: // 1
                 val = true;
                 break;
+            case 1: // false
             case 3: // 0
                 val = false;
                 break;
@@ -563,15 +559,13 @@ Unit VDomDocument::StrToUnits(const QString &unit)
         case 0:// mm
             result = Unit::Mm;
             break;
-        case 1:// cm
-            result = Unit::Cm;
-            break;
         case 2:// inch
             result = Unit::Inch;
             break;
         case 3:// px
             result = Unit::Px;
             break;
+        case 1:// cm
         default:
             result = Unit::Cm;
             break;
@@ -594,54 +588,17 @@ QString VDomDocument::UnitsToStr(const Unit &unit, const bool translate)
     switch (unit)
     {
         case Unit::Mm:
-            if (translate)
-            {
-                result = QObject::tr("mm");
-            }
-            else
-            {
-                result = UnitMM;
-            }
-            break;
-        case Unit::Cm:
-            if (translate)
-            {
-                result = QObject::tr("cm");
-            }
-            else
-            {
-                result = UnitCM;
-            }
+            translate ? result = QObject::tr("mm") : result = UnitMM;
             break;
         case Unit::Inch:
-            if (translate)
-            {
-                result = QObject::tr("inch");
-            }
-            else
-            {
-                result = UnitINCH;
-            }
+            translate ? result = QObject::tr("inch") : result = UnitINCH;
             break;
         case Unit::Px:
-            if (translate)
-            {
-                result = QObject::tr("px");
-            }
-            else
-            {
-                result = UnitPX;
-            }
+            translate ? result = QObject::tr("px") : result = UnitPX;
             break;
+        case Unit::Cm:
         default:
-            if (translate)
-            {
-                result = QObject::tr("cm");
-            }
-            else
-            {
-                result = UnitCM;
-            }
+            translate ? result = QObject::tr("cm") : result = UnitCM;
             break;
     }
     return result;
diff --git a/src/libs/ifc/xml/vpatternconverter.cpp b/src/libs/ifc/xml/vpatternconverter.cpp
index ff1c45e6d..6906379fb 100644
--- a/src/libs/ifc/xml/vpatternconverter.cpp
+++ b/src/libs/ifc/xml/vpatternconverter.cpp
@@ -1735,14 +1735,6 @@ void VPatternConverter::FixSubPaths(int i, quint32 id, quint32 baseCurve)
             switch(splTypes.indexOf(type))
             {
                 case 0: //strModelingPath
-                {
-                    const quint32 spl = element.attribute(strIdObject).toUInt();
-                    if (spl == id+1 || spl == id+2)
-                    {
-                        element.setAttribute(strIdObject, baseCurve);
-                    }
-                    break;
-                }
                 case 1: //strModelingSpline
                 {
                     const quint32 spl = element.attribute(strIdObject).toUInt();
diff --git a/src/test/ParserTest/main.cpp b/src/test/ParserTest/main.cpp
index a3c1b76a7..0d4a8cf53 100644
--- a/src/test/ParserTest/main.cpp
+++ b/src/test/ParserTest/main.cpp
@@ -38,8 +38,6 @@ void testMessageOutput(QtMsgType type, const QMessageLogContext &context, const
     switch (type)
     {
         case QtDebugMsg:
-            fprintf(stderr, "%s\n", localMsg.constData());
-            break;
         case QtWarningMsg:
             fprintf(stderr, "%s\n", localMsg.constData());
             break;