loplugin:constmethod in basic

Change-Id: Ib2056ab8437e163c7ae42e3ab7a4a3f8b6cb80a2
Reviewed-on: https://gerrit.libreoffice.org/78547
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

22 files changed, 83 insertions, 83 deletions

diff --git a/basic/source/basmgr/basmgr.cxx b/basic/source/basmgr/basmgr.cxx
index a8707a825d0f..d5fc199e792e 100644
--- a/basic/source/basmgr/basmgr.cxx
+++ b/basic/source/basmgr/basmgr.cxx
@@ -377,7 +377,7 @@ public:
 
     static BasicLibInfo*    Create( SotStorageStream& rSStream );
 
-    const uno::Reference< script::XLibraryContainer >& GetLibraryContainer()
+    const uno::Reference< script::XLibraryContainer >& GetLibraryContainer() const
         { return mxScriptCont; }
     void SetLibraryContainer( const uno::Reference< script::XLibraryContainer >& xScriptCont )
         { mxScriptCont = xScriptCont; }
diff --git a/basic/source/classes/sbunoobj.cxx b/basic/source/classes/sbunoobj.cxx
index 6e04394d5d99..3b698965abd0 100644
--- a/basic/source/classes/sbunoobj.cxx
+++ b/basic/source/classes/sbunoobj.cxx
@@ -4881,7 +4881,7 @@ StructRefInfo SbUnoStructRefObject::getStructMember( const OUString& rMemberName
     return aRet;
 }
 
-OUString SbUnoStructRefObject::getDbgObjectName()
+OUString SbUnoStructRefObject::getDbgObjectName() const
 {
     OUString aName = GetClassName();
     if( aName.isEmpty() )
diff --git a/basic/source/classes/sbxmod.cxx b/basic/source/classes/sbxmod.cxx
index 74f96ac2740c..35fdb4bd0937 100644
--- a/basic/source/classes/sbxmod.cxx
+++ b/basic/source/classes/sbxmod.cxx
@@ -1658,7 +1658,7 @@ public:
         StarBASIC::SetGlobalErrorHdl(mErrHandler);
     }
     DECL_LINK( BasicErrorHdl, StarBASIC *, bool );
-    bool HasError() { return mbError; }
+    bool HasError() const { return mbError; }
 };
 
 IMPL_LINK( ErrorHdlResetter, BasicErrorHdl, StarBASIC *, /*pBasic*/, bool)
diff --git a/basic/source/comp/codegen.cxx b/basic/source/comp/codegen.cxx
index dbed7a50ac0b..f22f98135277 100644
--- a/basic/source/comp/codegen.cxx
+++ b/basic/source/comp/codegen.cxx
@@ -42,7 +42,7 @@ SbiCodeGen::SbiCodeGen( SbModule& r, SbiParser* p, short nInc )
     nForLevel = 0;
 }
 
-sal_uInt32 SbiCodeGen::GetPC()
+sal_uInt32 SbiCodeGen::GetPC() const
 {
     return aCode.GetSize();
 }
diff --git a/basic/source/comp/exprnode.cxx b/basic/source/comp/exprnode.cxx
index ca341228d113..6b712a639046 100644
--- a/basic/source/comp/exprnode.cxx
+++ b/basic/source/comp/exprnode.cxx
@@ -161,17 +161,17 @@ void SbiExprNode::ConvertToIntConstIfPossible()
     }
 }
 
-bool SbiExprNode::IsNumber()
+bool SbiExprNode::IsNumber() const
 {
     return eNodeType == SbxNUMVAL;
 }
 
-bool SbiExprNode::IsVariable()
+bool SbiExprNode::IsVariable() const
 {
     return eNodeType == SbxVARVAL;
 }
 
-bool SbiExprNode::IsLvalue()
+bool SbiExprNode::IsLvalue() const
 {
     return IsVariable();
 }
diff --git a/basic/source/comp/exprtree.cxx b/basic/source/comp/exprtree.cxx
index 24b004f424ef..a7f5188aa075 100644
--- a/basic/source/comp/exprtree.cxx
+++ b/basic/source/comp/exprtree.cxx
@@ -110,7 +110,7 @@ static bool DoParametersFollow( SbiParser* p, SbiExprType eCurExpr, SbiToken eTo
 // definition of a new symbol
 
 static SbiSymDef* AddSym ( SbiToken eTok, SbiSymPool& rPool, SbiExprType eCurExpr,
-                           const OUString& rName, SbxDataType eType, SbiExprList* pPar )
+                           const OUString& rName, SbxDataType eType, const SbiExprList* pPar )
 {
     SbiSymDef* pDef;
     // A= is not a procedure
diff --git a/basic/source/inc/buffer.hxx b/basic/source/inc/buffer.hxx
index 525a193566c6..2291e8d0bea8 100644
--- a/basic/source/inc/buffer.hxx
+++ b/basic/source/inc/buffer.hxx
@@ -45,7 +45,7 @@ public:
     bool operator += (sal_uInt32);      // save integer
     void operator += (sal_Int32);       // save integer
     char*  GetBuffer();             // give out buffer (delete yourself!)
-    sal_uInt32 GetSize()                { return nOff; }
+    sal_uInt32 GetSize() const { return nOff; }
 };
 
 #endif
diff --git a/basic/source/inc/codegen.hxx b/basic/source/inc/codegen.hxx
index 5a969d1f2cb7..4abf53504295 100644
--- a/basic/source/inc/codegen.hxx
+++ b/basic/source/inc/codegen.hxx
@@ -45,8 +45,8 @@ public:
     void BackChain( sal_uInt32 off )    { aCode.Chain( off );  }
     void Statement();
     void GenStmnt();            // create statement-opcode maybe
-    sal_uInt32 GetPC();
-    sal_uInt32 GetOffset()              { return GetPC() + 1; }
+    sal_uInt32 GetPC() const;
+    sal_uInt32 GetOffset() const { return GetPC() + 1; }
     void Save();
 
     // #29955 service for-loop-level
diff --git a/basic/source/inc/dlgcont.hxx b/basic/source/inc/dlgcont.hxx
index 93e917dd1cd2..d138b77ce5e6 100644
--- a/basic/source/inc/dlgcont.hxx
+++ b/basic/source/inc/dlgcont.hxx
@@ -130,11 +130,11 @@ public:
     virtual css::uno::Reference< css::resource::XStringResourceResolver >
         SAL_CALL getStringResource(  ) override;
 
-    const OUString& getName()
+    const OUString& getName() const
         { return m_aName; }
 
     const css::uno::Reference< css::resource::XStringResourcePersistence >&
-        getStringResourcePersistence()
+        getStringResourcePersistence() const
     {
         return m_xStringResourcePersistence;
     }
diff --git a/basic/source/inc/expr.hxx b/basic/source/inc/expr.hxx
index e0b088ef15d8..d83594c4951f 100644
--- a/basic/source/inc/expr.hxx
+++ b/basic/source/inc/expr.hxx
@@ -106,10 +106,10 @@ class SbiExprNode final {           // operators (and operands)
     void  FoldConstantsBinaryNode(SbiParser*);
     void  FoldConstantsUnaryNode(SbiParser*);
     void  CollectBits();            // converting numbers to strings
-    bool  IsOperand()
+    bool  IsOperand() const
         { return eNodeType != SbxNODE && eNodeType != SbxTYPEOF && eNodeType != SbxNEW; }
-    bool  IsNumber();
-    bool  IsLvalue();               // true, if usable as Lvalue
+    bool  IsNumber() const;
+    bool  IsLvalue() const;        // true, if usable as Lvalue
     void  GenElement( SbiCodeGen&, SbiOpcode );
 
 public:
@@ -122,22 +122,22 @@ public:
     SbiExprNode( sal_uInt16 );                  // new <type>
     ~SbiExprNode();
 
-    bool IsValid()                  { return !bError; }
-    bool IsConstant()               // true: constant operand
+    bool IsValid() const               { return !bError; }
+    bool IsConstant() const           // true: constant operand
         { return eNodeType == SbxSTRVAL || eNodeType == SbxNUMVAL; }
     void ConvertToIntConstIfPossible();
-    bool IsVariable();
+    bool IsVariable() const;
 
     void SetWithParent( SbiExprNode* p )    { pWithParent = p; }
 
-    SbxDataType GetType()           { return eType; }
+    SbxDataType GetType() const     { return eType; }
     void SetType( SbxDataType eTp ) { eType = eTp; }
-    SbiNodeType GetNodeType()       { return eNodeType; }
+    SbiNodeType GetNodeType() const { return eNodeType; }
     SbiSymDef* GetVar();
     SbiSymDef* GetRealVar();        // last variable in x.y.z
     SbiExprNode* GetRealNode();     // last node in x.y.z
-    const OUString& GetString()     { return aStrVal; }
-    short GetNumber()               { return static_cast<short>(nVal); }
+    const OUString& GetString() const { return aStrVal; }
+    short GetNumber() const         { return static_cast<short>(nVal); }
     SbiExprList* GetParameters()    { return aVar.pPar; }
 
     void Optimize(SbiParser*);                // tree matching
@@ -180,17 +180,17 @@ public:
    ~SbiExpression();
     OUString& GetName()             { return aArgName;            }
     void SetBased()                 { bBased = true;              }
-    bool IsBased()                  { return bBased;              }
+    bool IsBased() const            { return bBased;              }
     void SetByVal()                 { bByVal = true;              }
-    bool IsBracket()                { return bBracket;            }
-    bool IsValid()                  { return pExpr->IsValid();    }
-    bool IsVariable()               { return pExpr->IsVariable(); }
-    bool IsLvalue()                 { return pExpr->IsLvalue();   }
+    bool IsBracket() const          { return bBracket;            }
+    bool IsValid() const            { return pExpr->IsValid();    }
+    bool IsVariable() const         { return pExpr->IsVariable(); }
+    bool IsLvalue() const           { return pExpr->IsLvalue();   }
     void ConvertToIntConstIfPossible() { pExpr->ConvertToIntConstIfPossible();     }
-    const OUString& GetString()     { return pExpr->GetString();  }
+    const OUString& GetString() const { return pExpr->GetString();  }
     SbiSymDef* GetRealVar()         { return pExpr->GetRealVar(); }
     SbiExprNode* GetExprNode()      { return pExpr.get();         }
-    SbxDataType GetType()           { return pExpr->GetType();    }
+    SbxDataType GetType() const     { return pExpr->GetType();    }
     void Gen( RecursiveMode eRecMode = UNDEFINED );
 };
 
@@ -200,9 +200,9 @@ class SbiConstExpression : public SbiExpression {
     SbxDataType eType;
 public:                             // numeric constant
     SbiConstExpression( SbiParser* );
-    SbxDataType GetType() { return eType; }
-    const OUString& GetString() { return aVal; }
-    double GetValue() { return nVal; }
+    SbxDataType GetType() const { return eType; }
+    const OUString& GetString() const { return aVal; }
+    double GetValue() const { return nVal; }
     short GetShortValue();
 };
 
@@ -216,10 +216,10 @@ public:
     ~SbiExprList();
     static SbiExprListPtr ParseParameters(SbiParser*, bool bStandaloneExpression = false, bool bPar = true);
     static SbiExprListPtr ParseDimList( SbiParser* );
-    bool  IsBracket()               { return bBracket;        }
-    bool  IsValid()                 { return !bError; }
-    short GetSize()                 { return aData.size();    }
-    short GetDims()                 { return nDim;            }
+    bool  IsBracket() const         { return bBracket;        }
+    bool  IsValid() const           { return !bError; }
+    short GetSize() const           { return aData.size();    }
+    short GetDims() const           { return nDim;            }
     SbiExpression* Get( size_t );
     void  Gen( SbiCodeGen& rGen);                    // code generation
     void addExpression( std::unique_ptr<SbiExpression>&& pExpr  );
diff --git a/basic/source/inc/image.hxx b/basic/source/inc/image.hxx
index f286e3e286fb..bc64dc6730d6 100644
--- a/basic/source/inc/image.hxx
+++ b/basic/source/inc/image.hxx
@@ -81,7 +81,7 @@ public:
                             // nVer is set to version
                             // of image
     bool Save( SvStream&, sal_uInt32 = B_CURVERSION );
-    bool IsError()                  { return bError;    }
+    bool IsError() const            { return bError;    }
 
     const char* GetCode() const     { return pCode.get();     }
     sal_uInt32  GetCodeSize() const { return nCodeSize; }
@@ -89,7 +89,7 @@ public:
     OUString    GetString( short nId ) const;
     const SbxObject* FindType (const OUString& aTypeName) const;
 
-    const SbxArrayRef& GetEnums()          { return rEnums; }
+    const SbxArrayRef& GetEnums() const { return rEnums; }
 
     void        SetFlag( SbiImageFlags n ) { nFlags |= n;      }
     bool        IsFlag( SbiImageFlags n ) const { return bool(nFlags & n); }
diff --git a/basic/source/inc/runtime.hxx b/basic/source/inc/runtime.hxx
index 754336ea089e..11da4275c77b 100644
--- a/basic/source/inc/runtime.hxx
+++ b/basic/source/inc/runtime.hxx
@@ -167,13 +167,13 @@ public:
     void Abort();                               // with current error code
 
     void    Stop();
-    ErrCode const & GetErr()                { return nErr; }
-    const OUString& GetErrorMsg()           { return aErrorMsg; }
-    sal_Int32 GetErl()             { return nErl; }
+    ErrCode const & GetErr() const       { return nErr; }
+    const OUString& GetErrorMsg() const  { return aErrorMsg; }
+    sal_Int32 GetErl() const             { return nErl; }
     void    EnableReschedule( bool bEnable ) { bReschedule = bEnable; }
-    bool    IsReschedule() { return bReschedule; }
+    bool    IsReschedule() const { return bReschedule; }
     void    EnableCompatibility( bool bEnable ) { bCompatibility = bEnable; }
-    bool    IsCompatibility() { return bCompatibility; }
+    bool    IsCompatibility() const { return bCompatibility; }
 
     ComponentVector_t& getComponentVector()  { return ComponentVector; }
 
@@ -343,7 +343,7 @@ class SbiRuntime
 public:
     void          SetVBAEnabled( bool bEnabled );
     bool          IsImageFlag( SbiImageFlags n ) const;
-    sal_uInt16      GetBase();
+    sal_uInt16      GetBase() const;
     sal_Int32  nLine,nCol1,nCol2;
     SbiRuntime* pNext;               // Stack-Chain
 
@@ -359,7 +359,7 @@ public:
     void block()     { bBlocked = true; }
     void unblock()   { bBlocked = false; }
     SbModule* GetModule()  { return pMod;    }
-    BasicDebugFlags GetDebugFlags() { return nFlags;  }
+    BasicDebugFlags GetDebugFlags() const { return nFlags;  }
     void SetDebugFlags( BasicDebugFlags nFl ) { nFlags = nFl;  }
     SbMethod* GetCaller() { return pMeth;}
     SbxVariable* GetExternalCaller(){ return mpExtCaller; }
diff --git a/basic/source/inc/sbunoobj.hxx b/basic/source/inc/sbunoobj.hxx
index 1116767e34ca..2c38ed5542f4 100644
--- a/basic/source/inc/sbunoobj.hxx
+++ b/basic/source/inc/sbunoobj.hxx
@@ -56,7 +56,7 @@ public:
     css::uno::TypeClass getTypeClass() const;
 
     void* getInst();
-    bool isEmpty() { return (mnPos == -1); }
+    bool isEmpty() const { return (mnPos == -1); }
 
     css::uno::Any getValue();
     void setValue( const css::uno::Any& );
@@ -79,10 +79,10 @@ class SbUnoStructRefObject: public SbxObject
     void implCreateDbgProperties();
     void initMemberCache();
     OUString Impl_DumpProperties();
-    OUString getDbgObjectName();
+    OUString getDbgObjectName() const;
 public:
     StructRefInfo getStructMember( const OUString& rMember );
-    const StructRefInfo& getStructInfo() { return maMemberInfo; }
+    const StructRefInfo& getStructInfo() const { return maMemberInfo; }
     SbUnoStructRefObject( const OUString& aName_, const StructRefInfo& rMemberInfo );
     virtual ~SbUnoStructRefObject() override;
 
@@ -133,12 +133,12 @@ public:
 
     // give out value
     css::uno::Any getUnoAny();
-    const css::uno::Reference< css::beans::XIntrospectionAccess >& getIntrospectionAccess()    { return mxUnoAccess; }
-    const css::uno::Reference< css::script::XInvocation >& getInvocation()         { return mxInvocation; }
+    const css::uno::Reference< css::beans::XIntrospectionAccess >& getIntrospectionAccess() const { return mxUnoAccess; }
+    const css::uno::Reference< css::script::XInvocation >& getInvocation() const { return mxInvocation; }
 
     void Notify( SfxBroadcaster&, const SfxHint& rHint ) override;
 
-    bool isNativeCOMObject()
+    bool isNativeCOMObject() const
         { return bNativeCOMObject; }
 };
 typedef tools::SvRef<SbUnoObject> SbUnoObjectRef;
@@ -171,7 +171,7 @@ public:
 
     const css::uno::Sequence< css::reflection::ParamInfo >& getParamInfos();
 
-    bool isInvocationBased()
+    bool isInvocationBased() const
         { return mbInvocation; }
 };
 
@@ -195,10 +195,10 @@ public:
     SbUnoProperty( const OUString& aName_, SbxDataType eSbxType, SbxDataType eRealSbxType,
         const css::beans::Property& aUnoProp_, sal_Int32 nId_, bool bInvocation, bool bUnoStruct );
 
-    bool isUnoStruct() { return mbUnoStruct; }
-    bool isInvocationBased()
+    bool isUnoStruct() const { return mbUnoStruct; }
+    bool isInvocationBased() const
         { return mbInvocation; }
-    SbxDataType getRealType() { return mRealType; }
+    SbxDataType getRealType() const { return mRealType; }
 };
 
 // factory class to create uno-structs per DIM AS NEW
@@ -227,7 +227,7 @@ public:
     virtual SbxVariable* Find( const OUString&, SbxClassType ) override;
 
 
-    const css::uno::Reference< css::reflection::XIdlClass >& getUnoClass() { return m_xClass; }
+    const css::uno::Reference< css::reflection::XIdlClass >& getUnoClass() const { return m_xClass; }
 
 };
 
@@ -271,7 +271,7 @@ public:
     virtual ~SbUnoServiceCtor() override;
     virtual SbxInfo* GetInfo() override;
 
-    const css::uno::Reference< css::reflection::XServiceConstructorDescription >& getServiceCtorDesc()
+    const css::uno::Reference< css::reflection::XServiceConstructorDescription >& getServiceCtorDesc() const
         { return m_xServiceCtorDesc; }
 };
 
@@ -299,7 +299,7 @@ public:
         , mVal( rVal )
     {}
 
-    const css::uno::Any& getValue()
+    const css::uno::Any& getValue() const
         { return mVal; }
 
 };
diff --git a/basic/source/inc/scanner.hxx b/basic/source/inc/scanner.hxx
index 5b5b03653b3b..9b03b0adc568 100644
--- a/basic/source/inc/scanner.hxx
+++ b/basic/source/inc/scanner.hxx
@@ -69,14 +69,14 @@ public:
     SbiScanner( const OUString&, StarBASIC* = nullptr );
 
     void  EnableErrors()            { bError = false; }
-    bool  IsHash()                  { return bHash;   }
-    bool  IsCompatible()            { return bCompatible; }
+    bool  IsHash() const            { return bHash;   }
+    bool  IsCompatible() const      { return bCompatible; }
     void  SetCompatible( bool b )   { bCompatible = b; }        // #118206
-    bool  IsVBASupportOn()          { return bVBASupportOn; }
+    bool  IsVBASupportOn() const    { return bVBASupportOn; }
     bool  WhiteSpace()              { return bSpaces; }
-    sal_Int32 GetErrors()           { return nErrors; }
-    sal_Int32 GetLine()             { return nLine;   }
-    sal_Int32 GetCol1()             { return nCol1;   }
+    sal_Int32 GetErrors() const     { return nErrors; }
+    sal_Int32 GetLine() const       { return nLine;   }
+    sal_Int32 GetCol1() const       { return nCol1;   }
     void  SetCol1( sal_Int32 n )    { nCol1 = n;      }
     StarBASIC* GetBasic()           { return pBasic;  }
     void  SaveLine()                { nSaveLineIdx = nLineIdx; }
@@ -86,9 +86,9 @@ public:
     bool  DoesColonFollow();
 
     bool NextSym();
-    const OUString& GetSym() { return aSym;  }
-    SbxDataType GetType()           { return eScanType; }
-    double    GetDbl()              { return nVal;  }
+    const OUString& GetSym() const  { return aSym;  }
+    SbxDataType GetType() const     { return eScanType; }
+    double    GetDbl() const        { return nVal;  }
 };
 
 #endif
diff --git a/basic/source/inc/symtbl.hxx b/basic/source/inc/symtbl.hxx
index 64a11ea814f3..cecfb797da22 100644
--- a/basic/source/inc/symtbl.hxx
+++ b/basic/source/inc/symtbl.hxx
@@ -136,7 +136,7 @@ public:
     void       SetDefinedAs()   { bAs = true;       }
     void       SetGlobal(bool b){ bGlobal = b;  }
     void       SetDefaultId( sal_uInt16 n ) { nDefaultId = n; }
-    sal_uInt16 GetDefaultId() { return nDefaultId; }
+    sal_uInt16 GetDefaultId() const { return nDefaultId; }
     bool       IsOptional() const{ return bOpt;     }
     bool       IsParamArray() const{ return bParamArray; }
     bool       IsWithEvents() const{ return bWithEvents; }
@@ -188,9 +188,9 @@ public:
     sal_uInt16 GetLine1() const     { return nLine1;   }
     void SetLine2( sal_uInt16 n )   { nLine2 = n;      }
     sal_uInt16 GetLine2() const     { return nLine2;   }
-    PropertyMode getPropertyMode()  { return mePropMode; }
+    PropertyMode getPropertyMode() const { return mePropMode; }
     void setPropertyMode( PropertyMode ePropMode );
-    const OUString& GetPropName()     { return maPropName; }
+    const OUString& GetPropName() const { return maPropName; }
 
     // Match with a forward-declaration. The parameter names are
     // compared and the forward declaration is replaced by this
@@ -211,8 +211,8 @@ public:
     virtual SbiConstDef* GetConstDef() override;
     void Set( double, SbxDataType );
     void Set( const OUString& );
-    double GetValue()           { return nVal; }
-    const OUString& GetString() { return aVal; }
+    double GetValue() const { return nVal; }
+    const OUString& GetString() const { return aVal; }
 };
 
 
diff --git a/basic/source/inc/token.hxx b/basic/source/inc/token.hxx
index fd991ba1bb6e..5178013172b3 100644
--- a/basic/source/inc/token.hxx
+++ b/basic/source/inc/token.hxx
@@ -112,8 +112,8 @@ protected:
 public:
     SbiTokenizer( const OUString&, StarBASIC* = nullptr );
 
-    bool IsEof()             { return bEof; }
-    bool IsEos()             { return bEos; }
+    bool IsEof() const         { return bEof; }
+    bool IsEos() const         { return bEos; }
 
     void  Push( SbiToken );
     const OUString& Symbol( SbiToken );   // reconversion
diff --git a/basic/source/runtime/ddectrl.cxx b/basic/source/runtime/ddectrl.cxx
index 47858f2b97ff..37d3c7d0c44d 100644
--- a/basic/source/runtime/ddectrl.cxx
+++ b/basic/source/runtime/ddectrl.cxx
@@ -47,7 +47,7 @@ static const ErrCode nDdeErrMap[] =
     /* DMLERR_UNFOUND_QUEUE_ID    */  ErrCode(0x4011), ERRCODE_BASIC_DDE_NO_CHANNEL
 };
 
-ErrCode SbiDdeControl::GetLastErr( DdeConnection* pConv )
+ErrCode SbiDdeControl::GetLastErr( const DdeConnection* pConv )
 {
     if( !pConv )
     {
diff --git a/basic/source/runtime/ddectrl.hxx b/basic/source/runtime/ddectrl.hxx
index dd12241a31b5..ea4557d4d02e 100644
--- a/basic/source/runtime/ddectrl.hxx
+++ b/basic/source/runtime/ddectrl.hxx
@@ -30,7 +30,7 @@ class SbiDdeControl
 {
 private:
     DECL_LINK( Data, const DdeData*, void );
-    static ErrCode GetLastErr( DdeConnection* );
+    static ErrCode GetLastErr( const DdeConnection* );
     size_t GetFreeChannel();
     std::vector<std::unique_ptr<DdeConnection>> aConvList;
     OUString aData;
diff --git a/basic/source/runtime/iosys.cxx b/basic/source/runtime/iosys.cxx
index d73a177ac223..cf433052014c 100644
--- a/basic/source/runtime/iosys.cxx
+++ b/basic/source/runtime/iosys.cxx
@@ -69,7 +69,7 @@ class SbiInputDialog : public weld::GenericDialogController
     DECL_LINK(Cancel, weld::Button&, void);
 public:
     SbiInputDialog(weld::Window*, const OUString&);
-    const OUString& GetInput() { return m_aText; }
+    const OUString& GetInput() const { return m_aText; }
 };
 
 SbiInputDialog::SbiInputDialog(weld::Window* pParent, const OUString& rPrompt)
diff --git a/basic/source/runtime/runtime.cxx b/basic/source/runtime/runtime.cxx
index 70300cc6542e..74fe533bd4a5 100644
--- a/basic/source/runtime/runtime.cxx
+++ b/basic/source/runtime/runtime.cxx
@@ -99,7 +99,7 @@ void StarBASIC::SetVBAEnabled( bool bEnabled )
     }
 }
 
-bool StarBASIC::isVBAEnabled()
+bool StarBASIC::isVBAEnabled() const
 {
     if ( bDocBasic )
     {
@@ -1261,7 +1261,7 @@ bool SbiRuntime::IsImageFlag( SbiImageFlags n ) const
     return pImg->IsFlag( n );
 }
 
-sal_uInt16 SbiRuntime::GetBase()
+sal_uInt16 SbiRuntime::GetBase() const
 {
     return pImg->GetBase();
 }
diff --git a/basic/source/sbx/sbxdec.cxx b/basic/source/sbx/sbxdec.cxx
index 8ae493031c0c..cd4566b105b7 100644
--- a/basic/source/sbx/sbxdec.cxx
+++ b/basic/source/sbx/sbxdec.cxx
@@ -127,7 +127,7 @@ bool SbxDecimal::neg()
     return bRet;
 }
 
-bool SbxDecimal::isZero()
+bool SbxDecimal::isZero() const
 {
     SbxDecimal aZeroDec;
     aZeroDec.setLong( 0 );
@@ -310,7 +310,7 @@ bool SbxDecimal::neg()
     return false;
 }
 
-bool SbxDecimal::isZero()
+bool SbxDecimal::isZero() const
 {
     return false;
 }
diff --git a/basic/source/sbx/sbxdec.hxx b/basic/source/sbx/sbxdec.hxx
index ed054642ded9..cfd2290aa517 100644
--- a/basic/source/sbx/sbxdec.hxx
+++ b/basic/source/sbx/sbxdec.hxx
@@ -93,7 +93,7 @@ public:
     bool operator *= ( const SbxDecimal &r );
     bool neg();
 
-    bool isZero();
+    bool isZero() const;
 
     // must match the return values of the Microsoft VarDecCmp Automation function
     enum class CmpResult { LT, EQ, GT };