C2039 error c++

c2039 error c++

So, to better learn about C++ development in Unreal Engine, I decided to take the eBook tutorials by Packt (“Building an RPG”). C2039 can occur when you try to release managed or unmanaged resources. For more information, see Destructors and finalizers. The following. C++ with libpqxx-header produces error C2039: 'encoding_group': is not a member of '`global namespace'' I have been d. c2039 error c++

C2039 error c++ - above told

AuthorMessageDavid N.4117





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Hi All,

I inherit an existing project that contains old MFC/ATL C++ code. when I compile the code with VS2003, it compile fine. With VS2005, I got 409 errors. I try to concentrate on the C2039 error above.

Do you know why I got the error above What are the differences between VS2005 and VS2003 what makes they are so incompatible

Thanks.




Visual C++4  
 
  nobugz





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Concentrate on the first error message, not one down the list. One mistake can cause a flurry of error messages, getting 409 errors due to one syntax error is not unheard of.


 
 David N.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Hi Nobugz

This error is the first error on the list. This project has hunderds of files. So 409 errors is pretty normal for a converted project. I have seen project that has as many as 4,5 thousands of errors after being converting.

Note that this project is compiled/linked and worked fine under VS2003. After converting to VS2005, it has 409 compiled errors. It could be due to some compiler switches that are not supported any more or not converted correctly.



 
 nobugz





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Good. Give us a chance to help you troubleshoot it and post the code that causes the first compiler error. Please include anything that is relevant to that particular line of code.


 
 David N.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Here is the code:

// This line define the template

#define

BEGIN_TEMPLATE_MESSAGE_MAP(theTemplate, parentClass) \template<class CBaseClass> \const AFX_MSGMAP* theTemplate<CBaseClass>::GetMessageMap() const \

{

return &theTemplate<CBaseClass>::messageMap; } \template<class CBaseClass> \

AFX_COMDAT

const AFX_MSGMAP theTemplate<CBaseClass>::messageMap = \

{ &parentClass::messageMap, &theTemplate<CBaseClass>::_messageEntries[0] }; \

template<class CBaseClass> \

AFX_COMDAT

const AFX_MSGMAP_ENTRY theTemplate<CBaseClass>::_messageEntries[] = \

{

// and this line causes the compile error

BEGIN_TEMPLATE_MESSAGE_MAP(TCreate, CBaseClass)

ON_TEMPLATE_WM_CREATE()

END_TEMPLATE_MESSAGE_MAP()

Thanks



 
 Ted.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Message maps underlying implementation was changed between 2003 and 2005. 

So whoever implemented this custom message map (TEMPLATE_MESSAGE_MAP) will have to use VC 2005 based code to implement this.  This will involve looking at the MFC source code and comparing the message map implementation between VC 2003 and VC 2005. 


 
 David N.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

I wouldn't think that Microsoft changes the message mapping implementation without letting its developer community know about it. The MFC code of VS-2005 should be backward compatible with the VS-2003 MFC code.

Man... I wish I can re-write this whole darn thing using C# and .NET framework...



 
 Ted.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

one of the things that has changes is that there is no more messageMap variable. You have to use GetThisMessageMap instead.

implementation of BEGIN_MESSAGE_MAP in 2003

#define BEGIN_MESSAGE_MAP(theClass, baseClass) \
const AFX_MSGMAP* PASCAL theClass::GetThisMessageMap() \
{ return &theClass::messageMap; } \
const AFX_MSGMAP* theClass::GetMessageMap() const \
{ return &theClass::messageMap; } \
AFX_COMDAT const AFX_MSGMAP theClass::messageMap = \
{ &baseClass::GetThisMessageMap, &theClass::_messageEntries[0] }; \
AFX_COMDAT const AFX_MSGMAP_ENTRY theClass::_messageEntries[] = \
{ \

implementation of BEGIN_MESSAGE_MAP in 2005

#define BEGIN_MESSAGE_MAP(theClass, baseClass) \
PTM_WARNING_DISABLE \
const AFX_MSGMAP* theClass::GetMessageMap() const \
{ return GetThisMessageMap(); } \
const AFX_MSGMAP* PASCAL theClass::GetThisMessageMap() \
{ \
typedef theClass ThisClass; \
typedef baseClass TheBaseClass; \
static const AFX_MSGMAP_ENTRY _messageEntries[] = \
{


 
 freeeggegg





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

I modified the codes you provided, but there are still many errors generated. And, there is many errors appear when it is buildt DECLARE_TEMPLATE_MESSAGE_MAP()

Please help! Thank you so much~

Monica.



 
  

Introduction

3ds Max 2013 has been upgraded to use version 10.0 of the Microsoft C/C++ compiler. This is the compiler that comes with Visual Studio 2010 Service Pack 1. Plug-in developers can now use Visual Studio 2010 with Platform Toolset vc100 to compile their projects. This document is a guide for upgrading plugins to compile with Visual Studio Service Pack 1.

Breaking Changes in 3ds Max

With the introduction of VC 10.0 there were few breaking changes in the max code base. These are specific, or mostly specific to the 3ds Max code base. Simple issues such as adding includes will not be discussed here are they are simple to diagnose, and already described on the MSDN.

Renamed ParamTags::end to ParamTags::p_end

Inside of ParamType.h is an enum called ParamTags with an enumerator called end. This conflicts with new symbols in the STL std namespace. For instance,

1> ...\xmlmtlexporter.cpp(233): error C2872: 'end': ambiguous symbol 1> could be '...\paramtype.h(665): ParamTags end' 1> or 'end'

The compiler is not going to show what the conflicting symbol is. However this is caused by adding a 'using namespace std' declaration in a header file. It is generally not recommended to add a using namespace declaration in a header file. Also, the symbol name 'end' was too generic, so the enumeration was renamed to avoid potential conflicts here and in the future.

Small block heap no longer supported

The C Runtime (CRT) header file malloc.h no longer declares nor defines the functions _get_sbh_threshold or _set_sbh_threshold. As such, any usage of these functions should be removed.

STL Set Iterators are all const

The C++ Standard Template Library in VC 10.0 no longer supports non-const iterators for sets and hash_sets. Thus, the std::set<>::iterator behaves identically to the const_iterator.

In particular, de-referencing the iterators will now return const types instead of non-const types. For instance, the following code may no longer work for an std::set iterator.

Instead, you would have to make the type const.

const MyType& t = *it;

You could alternatively perform a copy using the assignment operator, and drop the reference symbol.

To ensure that iterators are not altered within a loop, only const methods can be called on const types. Because set and hash_set is keyed on the type itself, performing non-const operations on the instance is now forbidden.

// Avoid the following for an iterator 'it': (*it)->changeThis(); // Proper call of a const method: (*it)->MyConstMethod();

One way to fix this is to make the method declaration const. For instance, the virtual method SelectFilterCallback::IsFiltered in maxapi.h was not const and failed to compile because the filters were stored in a set, and iterated using iterators. Changing this method to const enabled the code to compile properly. Note however that the compiler does not always flag such instances as issues. For instance, the following code compiles properly:

const AnimatableNotifierPtr& pNotifier = (*it); pNotifier->SetOwnerSet(NULL);

In cases where the iterator will be modified, a useful alternative to std::set<> is std::map<>. For instance, a hash_set can be replaced by a hash_map.

Named Template Parameters

Passing in arguments to functions through the template type instead of the normal function parameter list is no longer supported. The following example illustrates the proper use of templates.

// Wrong: the 'AccumulatorType wholeScale' is included in the template definition. template <class AccumulatorType, class DataType, AccumulatorType wholeScale> static inline void scale(const DataType *source, int sourceCount, DataType *dest, int destCount) { //... } // Correct: the 'AccumulatorType wholeScale' is a parameter in the scale() function. template <class AccumulatorType, class DataType> static inline void scale(const DataType* source, int sourceCount, DataType* dest, int destCount, AccumulatorType wholeScale) { // ... }

.NET 4.0

Previous versions of 3ds Max used a range of .NET 2.0 and .NET 4.0 functionality. 3ds Max 2013 now only uses .NET 4.0.

Possible Compiler Errors

The following is a list of frequently encountered compiler errors encountered while porting 3ds Max to the VC 10.0 compiler.

error C2678 - std::set<>::iterator is now const; it cannot have non-const methods invoked on it.

binary '=' : no operator found which takes a left-hand operand of type 'const <type>' (or there is no acceptable conversion)

Operations such as the following ones are therefore disallowed:

// Will not compile: MaterialTemplates::iterator p = MaterialTemplates::msTemplates.find(info.mID); *p = info;

error C2872 or error C2664 - ParamTags::end was renamed to ParamTags::p_end in paramtype.h.

error C2872: 'end' : ambiguous symbol could be '<filepath> : ParamTags end' or 'end'

error C1189 - The use of #define _WIN32_WINNT 0x0400 targets Windows 95 and below. Note that 3ds Max is not supported on Windows 95, nor Windows 98, nor Windows 2000. Plugin developers should adhere to #define _WIN32_WINNT 0x0502 (MaxWindowsVersion.h in the sdk), corresponding to Windows XP Service Pack 2.

fatal error C1189: #error : This file requires _WIN32_WINNT to be #defined at least to 0x0403. The value 0x0501 or higher is recommended.

error C2440 - This may occur if you are attempting to pass a NULL or zero (0) value to an STL method or constructor which requires a real pointer. Note that the keyword nullptr has been introduced in VC 10.0 to account for null value instantiations.

error C2440: 'initializing' : cannot convert from 'int' to 'StPathObject *'

For example, an std::map can be defined in the following way:

std::map<int*, int*> mymap;

If you tried to insert NULL into it, the compiler would complain with the warning above.

// Will not compile: mymap.insert(std::pair<int*, int*>(NULL, NULL));

Similarly, defining a standard pair is also invalid:

// Will not compile: std::pair<int*, int*>mypair(NULL, NULL);

Both of these approaches can be fixed by passing in properly typed arguments. For instance, you can now pass in nullptr.

// Will compile: mymap.insert(std::pair<int*, int*>(nullptr, nullptr));

error C2039 - Resolved by using boost version 1.44 or newer.

1> ...\file.hpp(141): error C2039: 'unchecked_copy' : is not a member of 'stdext'

This is documented by Microsoft as a breaking change, where it says "In the <algorithm> header, the checked_* and unchecked_* functions are removed".

Possible Linker Errors

error LNK2019 - A result of linking against libraries which contain STL code compiled with VC 9.0.

error: LNK2019: unresolved external symbol "__declspec(dllimport) public:class std::basic_string<whcar_t,struct std::char_traits<wchar_t>,..."

error LNK2005 - Occurs with DLLs which make extensive use of MFC. Ensure that stdafx.h is included first at the top of every .cpp file in the project. Consult the knowledge base article on Microsoft: http://support.microsoft.com/kb/148652.

error: LNK2005: [email protected] already defined in MSVCRTD.LIB (dllmain.obj)

Creative Commons License Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Please see the Autodesk Creative Commons FAQ for more information.


C2653 or C2039 error when you try to reference a function from the STD C++ library

  • Article
  • 2 minutes to read

This article provides the information about solving the C2653 or C2039 error that occurs when you reference a function from the STD C++ library.

Original product version:   Visual C++
Original KB number:   243444

Symptoms

Attempting to reference a function from the STD C++ library header using the namespace (for example, ) causes the compiler to emit a C2653 or a C2039 (depending upon whether or not namespace is defined at the point where the error is emitted) error message.

Cause

does not define the namespace . This is contrary to the Visual C++ documentation, which says:

Include the standard header to effectively include the standard header within the namespace.

Resolution

To work around the problem, place the in the namespace .

More information

Attempting to compile the following will cause the compiler to display the following error:

error C2653: 'std' : is not a class or namespace name

However, attempting to compile the following causes the compiler to display the following error:

error C2039: 'exit' : is not a member of 'std'

In the first case, the C2653 is displayed, because the namespace has not been defined. In the second case, the C2039 is displayed, because the namespace has been defined (in the header ), but the function is not part of that namespace. To work around the problem in either case, simply enclose the in the namespace , as follows:

Unreal Engine Forums

So, to better learn about C++ development in Unreal Engine, I decided to take the eBook tutorials by Packt (“Building an RPG”). I had many irritating hours of error fixing, old code replacement with new, writing and trying to understand the code better, and all of those situations I managed to compile projects (even though VS IDE kept spitting out errors that did not even exist there – somehow Visual Studio has really odd flaws and syntax gliches whenever you include new headers or edit code).

Anyway, I finally stumbled upon this:

This error does seem to make sense, because I can’t seem to find any declaration of this member/variable in any of the header files in the whole project, even after specifically searching in the solution explorer. It’s not mentioned anywhere in the book till page 63, in which they just show you a fragment of the code and tells you that CombatInstance pointer of all characters should point to itself, which will be done in the constructor. This one’s not that bad of a bad situations, because sometimes they don’t even document specific things they do and instead tells you to replace the whole code with “this-and-that” … and later on you realise that there are about 5 missing includes and a whole code block with 60% typos… this isn’t the case, but it still irritates a bit.

#GameCharacter.h

#CombatEngine.cpp

Introduction

3ds Max 2013 has been upgraded to use version 10.0 of the Microsoft C/C++ compiler. This is the compiler that comes with Visual Studio 2010 Service Pack 1. Plug-in developers c2039 error c++ can now use Visual Studio 2010 with Platform Toolset vc100 to compile their projects. C2039 error c++ document is a guide for upgrading plugins to compile with Visual Studio Service Pack 1.

Breaking Changes in 3ds Max c2039 error c++

With the introduction of VC 10.0 there were few breaking changes in c2039 error c++ holy terror tumblr code base. These are specific, or mostly specific to the 3ds Max code base. Simple issues such as adding includes will not be discussed here are they are simple to diagnose, and already described on the MSDN.

Renamed ParamTags::end to ParamTags::p_end

Inside of ParamType.h is an enum called ParamTags with an enumerator called end. This conflicts with a disk error occurred vista symbols in the STL std namespace, c2039 error c++. For instance,

1> .\xmlmtlexporter.cpp(233): error C2872: 'end': ambiguous symbol 1> could be '.\paramtype.h(665): ParamTags end' 1> or 'end'

The compiler is not going to show what the conflicting symbol is. However this is raised exception class einouterror caused by adding a 'using namespace std' declaration in a header file. It is generally not recommended to add a using namespace declaration in a header file. Also, the symbol name 'end' was too generic, so the enumeration was renamed to avoid potential conflicts here and in the future.

Small block heap no longer supported firebird error code -104 error 13155 p-cad

The C Runtime (CRT) header file malloc.h no longer declares nor defines the functions _get_sbh_threshold or _set_sbh_threshold. As such, any usage of these functions should be removed.

STL Set Iterators are all const

The C++ Standard Template Library in VC 10.0 no longer supports non-const iterators for sets and hash_sets. Thus, the std::set<>::iterator behaves identically to the const_iterator. c2039 error c++

In particular, de-referencing the iterators will now return const types instead of non-const types. For instance, the following code may no longer work for an std::set iterator.

Instead, you would have to make the type const.

const MyType& t = *it;

You could alternatively perform a copy using the assignment operator, and drop the reference symbol.

To ensure that iterators are not altered within a loop, only const methods can be called on const types. Because set and hash_set is keyed on the type itself, c2039 error c++ non-const operations on the instance is now forbidden.

// Avoid the following for an iterator 'it': (*it)->changeThis(); // Proper call of a const method: (*it)->MyConstMethod();

One way to fix this is to make the method declaration const. For instance, the virtual method SelectFilterCallback::IsFiltered in maxapi.h was not const and failed to compile because the filters were apache error log referrer in a set, and iterated using iterators. Changing this method to const enabled the code to compile properly. Note however that the compiler does not always flag such instances as issues, c2039 error c++. For instance, c2039 error c++ the following code compiles properly:

const AnimatableNotifierPtr& pNotifier = (*it); pNotifier->SetOwnerSet(NULL);

In cases where the iterator will be modified, a useful alternative to std::set<> is std::map<>. For instance, a hash_set can be replaced by a hash_map.

Named Template Parameters

Passing in arguments to functions through the template type instead of the normal function parameter list is no longer supported. The following example illustrates the proper use of templates.

// Wrong: the 'AccumulatorType wholeScale' is included in the template definition, c2039 error c++. template <class AccumulatorType, class DataType, AccumulatorType wholeScale> static inline void scale(const DataType *source, int sourceCount, DataType *dest, int destCount) { //. } // Correct: the 'AccumulatorType wholeScale' is a parameter in the scale() function, c2039 error c++. template <class AccumulatorType, class DataType> static inline void scale(const DataType* source, int sourceCount, DataType* dest, int destCount, AccumulatorType wholeScale) { // . }

.NET 4.0

Previous versions of 3ds Max used a range of .NET 2.0 and .NET 4.0 functionality, c2039 error c++. 3ds Max 2013 now only uses .NET 4.0.

Possible Compiler Errors

The following is a list of frequently encountered compiler errors encountered while porting 3ds Max to the VC 10.0 compiler.

error C2678 - hard disk 301 error is now const; it cannot have non-const methods invoked on it.

binary '=' : no operator found which takes a left-hand operand of type 'const <type>' (or there is no acceptable conversion)

Operations such as the following ones are therefore disallowed: c2039 error c++ Will not compile: MaterialTemplates::iterator p = MaterialTemplates::msTemplates.find(info.mID); *p = info;

error C2872 or error C2664 - ParamTags::end was renamed to ParamTags::p_end in paramtype.h, c2039 error c++. c2039 error c++

error C2872: 'end' : ambiguous symbol could be '<filepath> : ParamTags end' or 'end'

error C1189 - The use of #define _WIN32_WINNT 0x0400 targets Windows 95 and below. Note that 3ds Max is not supported on Windows 95, nor Windows 98, nor Windows 2000. Plugin developers should adhere to #define _WIN32_WINNT 0x0502 (MaxWindowsVersion.h in the sdk), corresponding to Windows XP Service Pack 2.

fatal error C1189: #error : This file requires _WIN32_WINNT to be #defined at least to 0x0403. The value 0x0501 or higher is recommended.

error C2440 - This may occur if you are attempting to pass a NULL or zero (0) value to an STL method or constructor which requires a real pointer. Note that the keyword nullptr has been introduced in VC 10.0 to account for null value instantiations.

error C2440: 'initializing' : cannot convert from 'int' to 'StPathObject *'

For example, an std::map can be defined in the following way:

std::map<int*, int*> mymap;

If you tried to insert NULL into it, the compiler would complain with the warning above.

// Will not compile: mymap.insert(std::pair<int*, c2039 error c++, int*>(NULL, NULL));

Similarly, defining a standard pair is also invalid:

// Will not compile: std::pair<int*, int*>mypair(NULL, NULL);

Both of these approaches can be fixed c2039 error c++ passing in properly typed arguments. For android drm client error instance, you can now pass in nullptr.

// Will compile: mymap.insert(std::pair<int*, int*>(nullptr, nullptr));

error C2039 - Resolved by using boost version 1.44 or newer.

1> .\file.hpp(141): error C2039: 'unchecked_copy' : is not a member of 'stdext'

This is documented by Microsoft as a breaking change, where it says "In the <algorithm> header, the checked_* and unchecked_* functions are removed".

Possible Linker Errors

error LNK2019 - A result of linking against libraries which contain STL code compiled with VC 9.0.

error: LNK2019: unresolved external symbol "__declspec(dllimport) public:class std::basic_string<whcar_t,struct std::char_traits<wchar_t>."

error LNK2005 - Occurs with DLLs which make extensive use of MFC. Ensure that stdafx.h is included first at the top of every .cpp file in the project. Consult the knowledge base article networkerror 500 internal server error on Microsoft: http://support.microsoft.com/kb/148652.

error: LNK2005: [email protected] already defined in MSVCRTD.LIB (dllmain.obj)

Creative Commons License Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported Error code 12031. Please see the Autodesk Creative Commons FAQ for more information.


C2653 or C2039 error when you try to reference a function from the STD C++ library

  • Article
  • 2 minutes to read

This article provides the information about solving the C2653 builder c+ + asynchronous socket error 10061 C2039 error that occurs when you reference a function from the STD C++ library.

Original product version:   Visual C++
Original KB number:   243444

Symptoms

Attempting to reference a function from the STD C++ library header using the namespace (for example, ) causes the compiler to emit a C2653 or a C2039 (depending upon whether or not namespace is defined at the point where the error is emitted) error message.

Cause

does not define the namespace. This is contrary to the Visual C++ documentation, which says:

Include the standard header to effectively include the standard header within the namespace.

Resolution

To work around the problem, place the in fatal error no screens found asplinux namespace .

More information

Attempting to compile the following will cause the compiler to display the following error:

error C2653: 'std' : is not a class or namespace name

However, attempting to compile the following causes the compiler to display the following error:

error C2039: 'exit' : is not a member of 'std'

In the first case, the C2653 is displayed, because the namespace has not been defined. In the second case, the C2039 is displayed, because the namespace has been defined (in the header c2039 error c++, but the function c2039 error c++ not part of that namespace. To work around the problem in either case, simply enclose the in the namespace c2039 error c++, as follows:

AuthorMessageDavid N.4117





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Hi All,

I inherit an existing project that contains old MFC/ATL C++ code. when I compile the code with VS2003, it compile fine. With VS2005, I got 409 errors. I try to concentrate on the C2039 error above.

Do you know why I got the error above What are the differences between VS2005 and VS2003 what makes they are so incompatible

Thanks.




Visual C++4  
 
  nobugz





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Concentrate on the first error message, not one down the list. One mistake can cause a flurry of error messages, getting 409 errors due to one syntax error is not unheard of.


 
 David N.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Hi Nobugz

This error is the first error on the list. This project has hunderds of files. So 409 errors is pretty normal for a converted project. I have seen project that has as many c2039 error c++ 4,5 thousands of errors after being converting.

Note that this project is compiled/linked and worked fine under VS2003. After converting to VS2005, it c2039 error c++ 409 compiled errors. It could be due to some compiler switches that are not supported any more or not converted correctly.



 
 nobugz





PostPosted: Visual C++ General, error C2039 error c++ 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Good. Give us a chance to help you troubleshoot it and post the code that causes the first compiler error. Please include anything that is relevant to that particular line of code.


 
 David N.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Here is the code:

// Squid error no running copy redhat line define the template

#define

BEGIN_TEMPLATE_MESSAGE_MAP(theTemplate, parentClass) \template<class CBaseClass> \const AFX_MSGMAP* theTemplate<CBaseClass>::GetMessageMap() const \

{

return &theTemplate<CBaseClass>::messageMap; } \template<class CBaseClass> \

AFX_COMDAT

const AFX_MSGMAP theTemplate<CBaseClass>::messageMap = \

{ &parentClass::messageMap, &theTemplate<CBaseClass>::_messageEntries[0] }; \

template<class CBaseClass> \

AFX_COMDAT

const AFX_MSGMAP_ENTRY theTemplate<CBaseClass>::_messageEntries[] = \

{

// and this line causes the compile error

BEGIN_TEMPLATE_MESSAGE_MAP(TCreate, c2039 error c++, CBaseClass)

ON_TEMPLATE_WM_CREATE()

END_TEMPLATE_MESSAGE_MAP()

Thanks



 
 Ted.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

Message maps underlying implementation was changed between 2003 and 2005. 

So whoever implemented this custom message map (TEMPLATE_MESSAGE_MAP) will have to use VC 2005 based code to implement this.  This will involve looking at the MFC source code and comparing the message map implementation between VC 2003 and VC 2005. 


 
 David N.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

I wouldn't think that Microsoft changes the message mapping implementation without letting its developer community know about it, c2039 error c++. The MFC code of VS-2005 should be backward compatible with the VS-2003 MFC code.

Man., c2039 error c++. I wish I can re-write this whole darn thing using C# and .NET framework.



 
 Ted.





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

one of the things that has changes is that there is no more messageMap variable. You have to use GetThisMessageMap instead.

implementation of BEGIN_MESSAGE_MAP in 2003

#define BEGIN_MESSAGE_MAP(theClass, baseClass) \
const AFX_MSGMAP* PASCAL theClass::GetThisMessageMap() \
{ return &theClass::messageMap; } \
const AFX_MSGMAP* theClass::GetMessageMap() const \
{ return &theClass::messageMap; } \
AFX_COMDAT const AFX_MSGMAP theClass::messageMap = \
{ &baseClass::GetThisMessageMap, &theClass::_messageEntries[0] }; \
AFX_COMDAT const AFX_MSGMAP_ENTRY theClass::_messageEntries[] = \
{ \

implementation of BEGIN_MESSAGE_MAP in 2005

#define BEGIN_MESSAGE_MAP(theClass, baseClass) \
PTM_WARNING_DISABLE \
const AFX_MSGMAP* theClass::GetMessageMap() const \
{ return GetThisMessageMap(); } \
const AFX_MSGMAP* PASCAL theClass::GetThisMessageMap() \
{ \
c2039 error c++ typedef theClass ThisClass; \
typedef baseClass TheBaseClass; hardware error 0x00000124 \
static const AFX_MSGMAP_ENTRY _messageEntries[] = \
{


 
 freeeggegg





PostPosted: Visual C++ General, error C2039: 'messageMap' : is not a member of 'TCreate<CBaseClass>' Top

I modified the codes you provided, but there are c2039 error c++ many errors generated. And, there is many errors appear when it is buildt DECLARE_TEMPLATE_MESSAGE_MAP()

Please help! Thank you so much~

Monica.



 
  

Unreal Engine Forums

So, c2039 error c++, to better learn about C++ development in Unreal Engine, I decided to take the eBook tutorials by Packt (“Building an RPG”). I had many irritating hours of error fixing, old code replacement with new, writing and trying to understand the code better, and all of those situations I managed to compile projects (even though VS IDE kept spitting out errors that did not even exist there – somehow Visual Studio has really odd flaws and syntax gliches whenever you include new headers or edit code).

Anyway, I finally stumbled upon this:

This error does seem to make sense, because I can’t seem to find any declaration of this member/variable in any of the header files in the whole project, even after specifically searching in the solution explorer. It’s not mentioned anywhere in the book till page 63, c2039 error c++, c2039 error c++ which they just show you a fragment of the code and tells you that CombatInstance pointer of all characters should point to itself, which will be done in the constructor. This one’s not that bad of a bad situations, because sometimes they don’t even document specific things they do and instead tells you to replace the whole code with “this-and-that” … and later on you realise that there are about 5 missing includes and a whole code block with 60% typos… this isn’t the case, but it still irritates a bit.

#GameCharacter.h

#CombatEngine.cpp