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I am adding to this chain as I find my issue is related to this.
Even though I am able to compile and link the project project using STLPort library. My code crashes when it tries to access a std::vector. The vector has been initialized using STLport STL.
when I initialized the vector it used stlp_std
MYApp.exe!stlp_std::vector<external_Lib::customString,stlp_std::allocator<external_Lib::customString> >::_M_insert_overflow(external_Lib::customString* __pos=0x075cc4d0, const external_Lib::customString & __x={...}, const stlp_std::__false_type & __formal={...}, unsigned int __fill_len=1, bool __atend=true) Line 161 + 0x38 bytes C++
when the 3rd party library code (built with Visual studio STL) access the vector it uses the Visual studio stl (std::vector) and hence crashes.
MYApp.exe!std::vector<external_Lib::customString,std::allocator<external_Lib::customString > >::begin() Line 633 + 0x13 bytes C++
Is there any solution to fix this?
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Are you STL port header files?
This thing happens when there is something mix up of STL port library and microsoft library.
Regards,
Vishal
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Actually my application uses STLPort libraries. So I am using the headers from STLPort 5.1 too. The 3rd party library (.lib) which I am trying to use in my application is using Visual studio STL. let me try to explain the problem.
This 3rd Party library has class OutputOptions which has a private member std::vector<string> _names. This class also has a public inline function addNames(string &name) {_names. pushback (name)}. In my application I have a OutputOptions object and I add names to this OutputOptions object using the inline function.[I can add the names, no issues in adding]. see the call stack at this point it uses stlp_std (stlport)
MYApp.exe!stlp_std::vector<3rdPartyLib::String,stlp_std::allocator<3rdPartyLib::String > >::push_back(const 3rdPartyLib::String & __x={...}) Line 368 C++
MYApp.exe!OutputOptions::addNames(const 3rdPartyLib::String & value={...})
But When the 3rd party library tries to access the _names vector using constant iterator the vector is corrupted and the application crashes. See the call stack when it tries to access the _names vector. it uses std::vector. I think that's the problem.
MYApp.exe!std::_Iterator_base::_Adopt(const std::_Container_base * _Parent=0x0190a3f4) Line 164 C++
MYApp.exe!std::_Vector_const_iterator<3rdPartyLib::String,std::allocator<3rdPartyLib::String> >::_Vector_const_iterator<3rdPartyLib::String,std::allocator<3rdPartyLib::String> >(3rdPartyLib::String * _Ptr=0x075c1bb8, const std::_Container_base * _Pvector=0x0190a3f4) Line 73 C++
MYApp.exe!std::vector<3rdPartyLib::String,std::allocator<3rdPartyLib::String> >::begin() Line 633 + 0x13 bytes C++
I don't know how to fix this.
-Avijit
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Hi Vishal,
I am also running into same errors, can you please let me know incase you got the linking error solution.
Thanks,
Sandeep
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I have been at this all night and I am still no closer to a solution.
The problem is that utf16_codecvt methods never get called and, therefore, the result is wrong. I have search the net, but all I can find is examples of what is supposed to work. Unfortunately none of them has worked. I have also seen other posters, on the net, with the same problem, but no one gave them and answer to it.
I have tested to make sure that it has the facet (utf16_codecvt) and it does. So I see no reason why its virtual methods are never called. Instead it keeps calling the codecvt<wchar_t,char, mbstate> methods.
Any ideas?
class utf16_codecvt : public std::codecvt<char16_t, char16_t, std::mbstate_t>
{
...
};
void MyTestFunc()
{
...
std::wifstream myFile;
std::locale myLoc = std::locale(myFile.getloc(), new utf16_codecvt);
myFile.imbue(myLoc);
myFile.open(pFileName, std::ios::in | std::ios::binary);
...
myFile.read(bom_buffer, 1);
...
}
The following link gives an example of the types of things I am trying to do.
April 01, 1999 - Unicode Files - P.J. Plauger http://www.ddj.com/cpp/184403638?pgno=1[^]
Signed, Very <blanking> tired. 
INTP
"Program testing can be used to show the presence of bugs, but never to show their absence."Edsger Dijkstra
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By changing the declaration of your codecvt facet to that shown below, I was able to get breakpoints in the replacement facet being set.
class utf16_codecvt : public std::codecvt<char16_t, char, std::mbstate_t>
{
typedef std::codecvt<char16_t, char, std::mbstate_t> Base;
typedef char16_t ElemT;
typedef char ByteT;
virtual result __CLR_OR_THIS_CALL do_in(std::mbstate_t& s,
const ByteT *_First1, const ByteT *_Last1, const ByteT *& _Mid1,
ElemT*_First2, ElemT* _Last2, ElemT *& _Mid2) const
{
return Base::do_in(s, _First1, _Last1, _Mid1, _First2, _Last2, _Mid2);
}
virtual result __CLR_OR_THIS_CALL do_out(std::mbstate_t& s,
const ElemT*_First1, const ElemT*_Last1, const ElemT*& _Mid1,
ByteT*_First2, ByteT*_Last2, ByteT*& _Mid2) const
{
return Base::do_out(s, _First1, _Last1, _Mid1, _First2, _Last2, _Mid2);
}
virtual result __CLR_OR_THIS_CALL do_unshift(std::mbstate_t& s,
ByteT*_First2, ByteT*_Last2, ByteT*&_Mid2) const
{
return Base::do_unshift(s, _First2, _Last2, _Mid2);
}
virtual int __CLR_OR_THIS_CALL do_length(const std::mbstate_t& s, const ByteT*_First1,
const ByteT*_Last1, size_t _Count) const
{
return Base::do_length(s, _First1, _Last1, _Count);
}
};
So, your replacement facet will have to know it needs two bytes read for every character (and vice versa, obviously). The best reference for that sort of information is probably Standard C++ IOStreams and Locales by Angelika Langer and Klaus Kreft[^] - but even then, locales and facets are heavy going in C++ 
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Thanks, Stuart
That worked great; I expected the problem was something like that. Something else I discovered was that the second template parameter has to be ‘char’ or it will not work. That is ‘unsigned char’ will not even work as the second parameter.
I need to dig up a copy of the standard to see if this is compliant and makes since, because having template parameters that can only be of a single integral type is illogical.
INTP
"Program testing can be used to show the presence of bugs, but never to show their absence."Edsger Dijkstra
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John R. Shaw wrote: Something else I discovered was that the second template parameter has to be ‘char’ or it will not work. That is ‘unsigned char’ will not even work as the second parameter.
I need to dig up a copy of the standard to see if this is compliant and makes since, because having template parameters that can only be of a single integral type is illogical.
I think there are two pertinent ideas here - firstly, files are streams of bytes (that's the basic concept underlying file streams in C++), which is why they always convert to/from bytes. Secondly, codecvt facets can be used on their own, without streams.
So, say you'd read in a file converting from a byte stream to (say) UCS-2. Then you want to write the UTF-32 equivalent to a file. You could use a codecvt facet that could convert from UCS-2 to UTF-32. The example code in the codecvt::in documentation on MSDN[^] shows this sort of scenario.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Hi,
I am looking for a possibility to have a two way associative array. What I mean is that I would like to have an array say
My2WayArray<int, string=""> _twoWayArray;
and I can do the following
_twoWayArray["user1"] = 123;
_twoWayArray["user2"] = 456;
and
_twoWayArray[123] = "user1";
_twoWayArray[456] = "user2";
this way I will be able to lookup a user if the integer (used as user id) is specified and integer id if user name is provided.
I don't want to use it anywhere, it is just out of curiosity.
While I am posting this question I am trying to figure it out at my end.
Thanks and Regards
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Bah - you beat me to it by a matter of seconds
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Like this[^]?
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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It's a pity they don't have something like this in the .NET collection classes. And it doesn't seem to exist in the third party libraries either. 
Kevin
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Probably be quite difficult to port the approach used in Boost - one of the first comments I saw in the bimap headers was:
Once you're using the words 'mpl' (== C++ template metaprogramming library) and 'magic' together, there's little to no hope of translating the code directly to another language. I suspect some form of code generator would be the best bet (I seem to remember a container generator being written by someone before C# got generics - that would be similar).
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Thank you Andy and Stuart for the reply.
I was looking for boost bi-map type functionality.
Regards
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Hi,
I need to implement the RPC in windows XP based system and I created an IDL file which contains the RPC calls and i created stub files. While compiling with server and client application it shows "You need a Windows NT Version 4.0 or Later to run this stub".But i am using Microsoft Visual C++ 6.0. Can anyone help to solve this problem?
Thanks,
S.Suthakar
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You probably need to set WINVER[^] to reflect you're using Windows XP, rather than Windows 98, which was the current version of Windows when VC6 came out.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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What Stuart said and depending on what you are using you might need to have an updated Platform SDK[^] from the original VC6
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I am using original version. The auto generated code only shows the error(defined in #).if i remove that then it is compiled.
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suthakar56 wrote: I am using original version. The auto generated code only shows the error(defined in #).if i remove that then it is compiled.
I have no new information. Follow the advice previously given by myself and Stuart.
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Good point - I forgot that one. So long since I used VC6....since I moved to VS2003, I've always used a Visual Studio newer than my standard target (Windows 2000 - we've not managed to make the giant leap to XP or Vista at the company I work for).
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Hi,
I compiled the idl file and it creates server and client (ie client_c.c and server_s.c) stub files.Client stub file is working properly in application.But In server stub file Interface definition is not implemented(generated code).(I created idl file project type is ATL COM AppWizard and server type as Service).
Regrads,
Suthakar
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suthakar56 wrote: But In server stub file Interface definition is not implemented
What do you mean by 'not implemented'?
I just tried a quick sample of IDL, which I processed with midl /server stub /client stub a.idl - seemed to have the correct server marshalling code.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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I just compiled .idl by vc++ editer itself.It creates the client and server stub files.I want to know that whether i should compile .idl file using midl compiler only or the the first is enough.
Not implemented -->The function(idl) definition is implemented in server stub file (in my sample code).But original code it was not there.
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suthakar56 wrote: I just compiled .idl by vc++ editer itself.It creates the client and server stub files.I want to know that whether i should compile .idl file using midl compiler only or the the first is enough.
VC++ uses MIDL. That's fine.
suthakar56 wrote: Not implemented -->The function(idl) definition is implemented in server stub file (in my sample code).But original code it was not there.
Can you explain what you mean by 'But original code it was not there'
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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