diff --git a/src/app/container/calculator.cpp b/src/app/container/calculator.cpp
index 5fac47f0a..0178def70 100644
--- a/src/app/container/calculator.cpp
+++ b/src/app/container/calculator.cpp
@@ -182,18 +182,19 @@ void Calculator::InitCharacterSets()
 {
     //String with all unique symbols for supported alpabets.
     // See script alphabets.py for generation and more information.
-    const QString symbols = QStringLiteral("ցЀĆЈVӧĎАғΕĖӅИқΝĞơРңњΥĦШҫ̆جگĮаҳѕεشԶиһνԾрυلՆӝшËՎҔPÓՖXӛӟŞӣզhëծpóӞնxßվāŁЃֆĉЋCŬđ\
-                                            ҐГΒęҘЛΚŘġҠУGاհЫدԱҰгβطԹõлκKՁÀуςهՉÈыvیՑÐSOřӘћաőcӐթèkàѓżűðsķչøӥӔĀփїІĈЎґĐΗЖҙĘȚ\
-                                            ΟОҡĠآΧЦتЮұİزηжԸغοоÁՀقχцÉՈيюÑՐђӋіәťӆўáŠĺѐfөըnñŰӤӨӹոľЁրăЉŭċБӸēłΔҖЙŤěΜӜDСձģΤӰ\
-                                            ЩīņحҮбưԳصδHйԻŇμӲӴсՃمτƠщՋєLQŹՓŕÖYśÞaգĽæiŽիӓîqճöyջþĂօЄӦĊЌΑĒДҗјΙȘĚМΡéĵĢФūӚΩبĪ\
-                                            ЬүќαذԲдҷιظԺмρՂфÇωوՊьÏՒTŚĻJբdçժlïӪղtպӫAւąЇčŃЏĕӯЗΖEțŮĝПΞأĥĹЧΦثÆӳЯIسŲԵзζԽпξكՅ\
-                                            ÄчφNMՍӌяӢՕÔWÎŝÜџёźեägխoӒյôwĶBžսüЂĄև̈ЊČƏљΓВҕĔӮΛКĜΣТҥĤکЪƯخγвŅԴŪضλкԼĴσтÅՄنъÍՌR\
-                                            ӕՔZÝŜbåդﻩjíլļrӵմzýռپêЅքćچЍďӱҒЕůėژșΘØҚНğńءΠFҢХħΨҪЭųįҶرҲеԷňعθҺнԿفπÂхՇψÊэšՏÒU\
-                                            əÚѝŻşҤӑâeէŐımկòuշÕúտŔ");
+    //Note. MSVC doen't support normal string concatenation for long string. Thats why we use QStringList in this place.
+    QStringList symbols = QStringList() << "ցЀĆЈVӧĎАғΕĖӅИқΝĞơРңњΥĦШҫ̆جگĮаҳѕεشԶиһνԾрυلՆӝшËՎҔPÓՖXӛӟŞӣզhëծpóӞնxßվāŁЃֆĉЋ"
+                                        << "CŬđҐГΒęҘЛΚŘġҠУGاհЫدԱҰгβطԹõлκKՁÀуςهՉÈыvیՑÐSOřӘћաőcӐթèkàѓżűðsķչøӥӔĀփїІĈЎ"
+                                        << "ґĐΗЖҙĘȚΟОҡĠآΧЦتЮұİزηжԸغοоÁՀقχцÉՈيюÑՐђӋіәťӆўáŠĺѐfөըnñŰӤӨӹոľЁրăЉŭċБӸēłΔҖ"
+                                        << "ЙŤěΜӜDСձģΤӰЩīņحҮбưԳصδHйԻŇμӲӴсՃمτƠщՋєLQŹՓŕÖYśÞaգĽæiŽիӓîqճöyջþĂօЄӦĊЌΑĒДҗј"
+                                        << "ΙȘĚМΡéĵĢФūӚΩبĪЬүќαذԲдҷιظԺмρՂфÇωوՊьÏՒTŚĻJբdçժlïӪղtպӫAւąЇčŃЏĕӯЗΖEțŮĝПΞأĥ"
+                                        << "ثĹЧΦÆӳЯIسŲԵзζԽпξكՅÄчφNMՍӌяӢՕÔWÎŝÜџёźեägխoӒյôwĶBžսüЂĄև̈ЊČƏљΓВҕĔӮΛКĜΣТҥĤک"
+                                        << "ЪƯخγвŅԴŪضλкԼĴσтÅՄنъÍՌRӕՔZÝŜbåդﻩjíլļrӵմzýռپêЅքćچЍďӱҒЕůėژșΘØҚНğńءΠFҢХħΨҪ"
+                                        << "ЭųįҶرҲеԷňعθҺнԿفπÂхՇψÊэšՏÒUəÚѝŻşҤӑâeէŐımկòuշÕúտŔ";
 
     // Defining identifier character sets
-    DefineNameChars(QStringLiteral("0123456789_") + symbols);
-    DefineOprtChars(symbols + QStringLiteral("+-*^/?<>=#!$%&|~'_"));
+    DefineNameChars(QStringLiteral("0123456789_") + symbols.join(""));
+    DefineOprtChars(symbols.join("") + QStringLiteral("+-*^/?<>=#!$%&|~'_"));
 }
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/app/exception/vexception.h b/src/app/exception/vexception.h
index 5c6a86a48..e057d8db2 100644
--- a/src/app/exception/vexception.h
+++ b/src/app/exception/vexception.h
@@ -45,9 +45,9 @@ class VException : public QException
 public:
     VException(const QString &what);
     VException(const VException &e);
-    Q_NORETURN virtual ~VException() V_NOEXCEPT_EXPR (true){}
+    virtual ~VException() V_NOEXCEPT_EXPR (true){}
 
-    Q_NORETURN virtual void    raise() const;
+    Q_NORETURN virtual void raise() const;
     // cppcheck-suppress unusedFunction
     virtual VException *clone() const;
     virtual QString ErrorMessage() const;
diff --git a/src/libs/qmuparser/qmuparserdef.h b/src/libs/qmuparser/qmuparserdef.h
index 3296fe35d..cf6ce2652 100644
--- a/src/libs/qmuparser/qmuparserdef.h
+++ b/src/libs/qmuparser/qmuparserdef.h
@@ -37,15 +37,6 @@
 
 #define QMUP_CHARS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
 
-//// Is noexcept supported?
-//#if defined(__clang__) && defined(__has_feature) && __has_feature(cxx_noexcept) || \
-//    defined(__GXX_EXPERIMENTAL_CXX0X__) && __GNUC__ * 10 + __GNUC_MINOR__ >= 46 || \
-//    defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 180021114
-//#  define QMUP_NOEXCEPT_EXPR(x) noexcept(x)
-//#else
-//#  define QMUP_NOEXCEPT_EXPR(x)
-//#endif
-
 // Detect whether the compiler supports C++11 noexcept exception specifications.
 #  if   defined(__clang__)
 #    if __has_feature(cxx_noexcept)