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IIRC, STLPort doesn't use namespace std - it uses something like _STL and uses a macro (#define std _STLPORT) to make that look like std in the code that uses STLPort.
You (obviously) need to make that distinction more explicit - I suspect you might be able to get your system to work by getting creative with macros.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Thanks Stuart.
But before going in to this step,I am getting one more porblem.
I am trying to compile my library with "Visual studio 8" first time and it is giving some errors
related to stlport.I found the reason on net that current version of STLport on my system is not compatible with VC++ 8.0 version.
I tried to take the latest version from STLport.org but I am not finding the way by which I can build
stlport library from it.
Could you please help me?
Thanks and Regards,
Vishal soni
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Version 5.2.1?
Downloading it and unpacking it reveals a configure.bat file, which you'll use to tell it what options to build into STLport. That builds a makefile which (as the configure script tells you) you use by going to build/lib folder and type "nmake clean install" to build and install STLport to the "lib" and "bin" folders.
Seems simple enough to me...
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Stuart Dootson wrote: Seems simple enough to me...
LMAO Thanks, get's my '5'
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I am trying same but if I give the command "nmake clean install", then it gives
the error unknown command
After this I tried by giving command
"C:\Program Files\Microsoft Visual Studio 8\VC\bin\nmake" clean install
By this I am getting the error
'cl' is not recognized as an internal or external command,
operable program or batch file.
NMAKE : fatal error U1077: 'cl' : return code '0x1'
Pleas tell that where I am wrong.
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Thanks Stuart.
I am able to compile the stlport.After this I have given the Path of library file and header file
in VC8.This paths are on the top of the path list.
While compiling the project,90% of error have been removed but still there are some
errors like:
'value_type' : illegal qualified name in member declaration
missing type specifier - int assumed. Note: C++ does not support default-int
'allocator_type' : illegal qualified name in member declaration
missing type specifier - int assumed. Note: C++ does not support default-int
value_type and allocator_type are defined in CStdString.h file as
#define MYBASE std::basic_string<CT>
typedef MYBASE::value_type MYVAL;
typedef MYBASE::allocator_type MYALLOC;
Regards,
Vishal Soni
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I'll suggest you pass CStdString.h through the pre-processor (use cl /p and see what the definitions of allocator_type and value_type look like. I suspect that there are macros not playing nicely together.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Thanks Stuart
Those error have been removed with this setting but now another error is coming as following:
LINK : fatal error LNK1104: cannot open file '.\Debug\AgencyObject.obj'.
AgencyObject.cpp/h are exist in the same project.
Is this error related to setting we have done or I am doing something wrong?
thanks and Regards,
Vishal soni
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Vishal Kumar Soni wrote: Those error have been removed with this setting but now another error is coming as following:
No - you misunderstood me. I suggested using cl /p to generate a pre-processed version of your file to see what code the compiler was really seeing. That gets rid of the error you were seeing because the compiler isn't run - so object code isn't generated for that file (AgencyObject.cpp, I guess).
So. If you do cl /p AgencyObject.cpp, you'll get a file called AgencyObject.i. This will contain the code that the pre-processor produces. All comments have been removed, all macros have been substituted with their definitions. In this file, you can see what the compiler sees when it produces the error messages about allocator_type and value_type and hopefully you'll realise why the error's happening.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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In AgencyObject.cpp file, I included CStdSting.h. So I checked the AgnecyObject.i file and macros are coming like following
template<typename CT>
class _SS : public stlp_std::basic_string<CT>
{
typedef stlp_std::basic_string<CT> MYBASE;
typedef _SS<CT> MYTYPE;
typedef MYBASE::const_pointer PCMYSTR;
typedef MYBASE::pointer PMYSTR;
typedef MYBASE::iterator MYITER;
typedef MYBASE::const_iterator MYCITER;
typedef MYBASE::size_type MYSIZE;
typedef MYBASE::value_type MYVAL;
typedef MYBASE::allocator_type MYALLOC;
VS8 is giving the error for last 2
typedef MYBASE::value_type MYVAL;
typedef MYBASE::allocator_type MYALLOC;
Regards,
Vishal Soni
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I'm guessing you're also getting error message something like this?
a.cpp(18) : warning C4346: 'stlp_std::basic_string<_CharT,_Traits,_Alloc>::value_type' : dependent name is not a type
prefix with 'typename' to indicate a type
a.cpp(20) : see reference to class template instantiation '_SS<CT>' being compiled
If so, it's a shame you didn't mention those before, 'cause they explain everything - VC++ used to be less standards compliant - it would presume that was the name of a type, where it shouldn't have done. The error message says what's needed - the declaration of allocator_type and value_type need to have typename added to the type being aliased, like this:
typedef typename MYBASE::value_type MYVAL;
typedef typename MYBASE::allocator_type MYALLOC;
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Thanks Stuart. It is workiing now.
I did not cheked the warning message before you pointed me.I was ignoring all warnings.
I was using same CStdString.h file in VC6 from long time.
Thanks again. Now I will try to use both Stlport and Microsoft STL in same project.
Regards,
Vishal Soni
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I am adding to this chain I find 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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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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