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Chris Maunder
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Dear Community!
Concerning a topic that deals with the compilation of a program written in C++ i would like to ask for your support.
Just for information at the beginning: I am a beginner in C++ programming. Most of the things I do in Python, Java and PHP.
However, for writing the master thesis, I have to deal with an open source software where the relevant part is written in C++ where i have to modify one part and now have to compile the folder where the source files are located to a shared library (.so)
The source code is from https://github.com/qgis/QGIS
The file i modified was https://github.com/qgis/QGIS/blob/master/src/analysis/raster/qgskde.cpp
(In the installed version of QGIS, the folder analysis appears just as _analysis.so)
I am working on a MacBook using MacOS 10.15.4 and a Raspberry Pi using Raspbian and have CMake Version 3.4 installed.
The CMakeLists.txt File i try to compile using the command "cmake . --debug-output" (having directed to the directory "..../QGIS-master/src/analysis/" before) is
https://github.com/qgis/QGIS/blob/master/src/analysis/CMakeLists.txt
where i added
cmake_minimum_required(VERSION 3.4.0)
in Line 4.
The output i get when executing the command described above is:
Running with debug output on.
CMake Error at CMakeLists.txt:390 (find_package):
By not providing "FindEXIV2.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "EXIV2", but
CMake did not find one.
Could not find a package configuration file provided by "EXIV2" with any of
the following names:
EXIV2Config.cmake
exiv2-config.cmake
Add the installation prefix of "EXIV2" to CMAKE_PREFIX_PATH or set
"EXIV2_DIR" to a directory containing one of the above files. If "EXIV2"
provides a separate development package or SDK, be sure it has been
installed.
Called from: [1] /home/pi/QGIS-master/src/analysis/CMakeLists.txt
-- Configuring incomplete, errors occurred!
See also "/home/pi/QGIS-master/src/analysis/CMakeFiles/CMakeOutput.log".
After several attempts of trying to solve this problem using google i don't get any further. I attached the CMakeOutput.log below.
Can someone give my advice on how i proceed here?
Thanks for any help in advance.
Best regards!
CMakeOutput.log
----------------------------------------------
The system is: Linux - 4.1.19+ - armv6l
Compiling the C compiler identification source file "CMakeCCompilerId.c" succeeded.
Compiler: /usr/bin/cc
Build flags:
Id flags:
The output was:
0
Compilation of the C compiler identification source "CMakeCCompilerId.c" produced "a.out"
The C compiler identification is GNU, found in "/home/pi/QGIS-master/src/analysis/CMakeFiles/3.4.0/CompilerIdC/a.out"
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded.
Compiler: /usr/bin/c++
Build flags:
Id flags:
The output was:
0
Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "a.out"
The CXX compiler identification is GNU, found in "/home/pi/QGIS-master/src/analysis/CMakeFiles/3.4.0/CompilerIdCXX/a.out"
Determining if the C compiler works passed with the following output:
Change Dir: /home/pi/QGIS-master/src/analysis/CMakeFiles/CMakeTmp
Run Build Command:"/usr/bin/make" "cmTC_4142a/fast"
/usr/bin/make -f CMakeFiles/cmTC_4142a.dir/build.make CMakeFiles/cmTC_4142a.dir/build
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make[1]: Leaving directory '/home/pi/QGIS-master/src/analysis/CMakeFiles/CMakeTmp'
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Detecting CXX compiler ABI info compiled with the following output:
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Has anyone tackled moving a project using C++/CLI to target .NET 5?
After struggling with the project settings, I am very close as everything compiles and resolves references now. But, I'm stuck with a useless link error. Adding /VERBOSE and /VERBOSE:CLR don't add any more info.
Just wondering if it's supported or not..
FWIW, here's the link error. There is usually a message after the "(80131195) :"
12>MSVCMRTD_netcore.LIB(mstartup.obj) : error LNK2022: metadata operation failed (80131195) :
12>LINK : fatal error LNK1255: link failed because of metadata errors
12>Done building project "JmpCLR.vcxproj" -- FAILED.
John
modified 5-Jan-21 10:22am.
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Hello everybody
I have modified status bar in CMyMainFrame class to show current time.In fact I have added an Indicator_ID to add a place next to the other 3 default indicators on status bar(Caps lock/Num lock/Scroll lock).
It generally works and show current time, But problem is that current time is updated just when I move the mouse or click somewhere.
How can I update that pragmatically from inside the project?
Best Regards.
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Hi,
I'm looking into whether we can move our current C++/CLI (and C#) code to using .NET 5.
One challenge seems to be that my C++/CLI Library project cannot reference a number of the UI classes any more.
For a simple test library, trying to call System::Windows::MessageBox::Show( msg ); results in:
1>C:\Users\john\source\repos\CppNetCoreLib\Widget.cpp(19,20): error C2039: 'MessageBox': is not a member of 'System::Windows'
I have switched to /clr:netcore and net5.0-windows as the target Framework. I can build and run if I don't use WinForms or WPF calls but trying those will fail.
So, I'm left searching for ways to reference those assemblies. But, simply referencing assemblies is no longer the way to add System::* dependencies. Instead, it looks like one must refernce 'Frameworks'. But C++/CLI doesn't support that in the VS IDE.
In C#, the csproj file adds <UseWPF>true</UseWPF> and/or <UseWindowsForms>true</UseWindowsForms>. Those don't seem to have any effect in C++/CLI.
Anyone have ideas or suggestions on what I could try?
John
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I've gotten further. It looks like you need to hand-edit the .vcxproj file and add the proper framework references. For example:
<ItemGroup>
<FrameworkReference Include="Microsoft.WindowsDesktop.App.WPF" />
<FrameworkReference Include="Microsoft.WindowsDesktop.App.WindowsForms" />
</ItemGroup>
Alas, now I can compile but am left with unhelpful link errors.
1>MSVCMRTD_netcore.LIB(mstartup.obj) : error LNK2022: metadata operation failed (80131195) :
1>MSVCMRTD_netcore.LIB(mstartup.obj) : error LNK2022: metadata operation failed (80131195) :
1>LINK : fatal error LNK1255: link failed because of metadata errors
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I am trying to apply DESPOT POMDP solver with using given examples to build my own decision making problem and I followed the documentation in the repository to build different relevant classes and functions in the header file
class SimpleState: public State {
public:
int position;
int context;
int time;
SimpleState();
SimpleState(int _position, int _context, int _time) :
rat_position(_position),
context(_context),
time(_time) {
}
SimpleState(int _state_id);
~SimpleState();
std::string text() const;
};
SimpleState::SimpleState() {
}
class StarMazeProblem : public DSPOMDP,
public MDP {
protected:
std::vector<std::vector<std::vector<State> > > transition_probabilities_;
mutable MemoryPool<SimpleState> memory_pool_;
std::vector<SimpleState*> states_;
mutable std::vector<ValuedAction> mdp_policy_;
public:
enum {CENTER = 0, RIGHT = 1, LEFT = 2};
public:
StarMazeProblem();
int NumStates() const;
void ComputeDefaultActions(std::string type) const;
ParticleUpperBound* CreateParticleUpperBound(std::string name = "DEFAULT") const;
ScenarioUpperBound* CreateScenarioUpperBound(std::string name = "DEFAULT",
std::string particle_bound_name = "DEFAULT") const;
ScenarioLowerBound* CreateScenarioLowerBound(std::string name = "DEFAULT",
std::string particle_bound_name = "DEFAULT") const;
}
and in the `starmaze.cpp` file the relevant lines are
int StarMazeProblem::NumStates() const {
return CONTEXT * POSITIONS * TIME;
}
void StarMazeProblem::ComputeDefaultActions(string type) const {
cerr << "Default action = " << type << endl;
if (type == "MDP") {
const_cast<StarMazeProblem*>(this)->ComputeOptimalPolicyUsingVI();
int num_states = NumStates();
default_action_.resize(num_states);
double value = 0;
for (int s = 0; s < num_states; s++) {
default_action_[s] = policy_[s].action;
value += policy_[s].value;
}
} else {
cerr << "Unsupported default action type " << type << endl;
exit(0);
}
}
ScenarioLowerBound* StarMazeProblem::CreateScenarioLowerBound(string name,
string particle_bound_name="DEFAULT") const {
const DSPOMDP* model = this;
const StateIndexer* indexer = this;
const StatePolicy* policy = this;
ScenarioLowerBound* bound = NULL;
if (name == "TRIVIAL" ) {
bound = new TrivialParticleLowerBound(this);
} else if (name == "RANDOM") {
bound = new RandomPolicy(this,
CreateParticleLowerBound(particle_bound_name));
} else if (name == "MODE" || name == "DEFAULT") {
ComputeDefaultActions("MDP");
bound = new ModeStatePolicy(model, *indexer, *policy,
CreateParticleLowerBound(particle_bound_name));
} else {
cerr << "Unsupported scenario lower bound: " << name << endl;
exit(1);
}
return bound;
}
here I got the following error for the above code:
src/starmaze.cpp:301:36: error: passing 'const std::vector<int>' as 'this' argument discards qualifiers [-fpermissive]
default_action_.resize(num_states);
^
In file included from /opt/local/include/gcc7/c++/vector:64:0,
from ../../../include/despot/interface/lower_bound.h:4,
from ../../../include/despot/core/builtin_lower_bounds.h:4,
from src/starmaze.h:3,
from src/starmaze.cpp:1:
/opt/local/include/gcc7/c++/bits/stl_vector.h:689:7: note: in call to 'void std::vector<_Tp, _Alloc>::resize(std::vector<_Tp, _Alloc>::size_type) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::size_type = long unsigned int]'
resize(size_type __new_size)
^~~~~~
I have basic c++ knowledge and I could not figure out the reason for the error since I followed the examples. Any suggestion?
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Image Transformation
Digital images are represented as a matrix and each element in the matrix represents the RGB value of a pixel. Given the pixel values of a nXn image. Write a code to transform the image into another image by alternate swap of edge pixels. That is for example, given a 4 X 4 image as follows:
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
The edge elements of the above image are 1, 2, 3, 4, 8, 12, 16, 15, 14, 13, 9 and 5. The following steps are involved in the transformation:
1 and 3 are swapped
1 and 8 are swapped
1 and 16 are swapped
1 and 14 are swapped
1 and 9 are swapped
After doing alternate swap of edge elements the pixel values of the image looks as follows:
3 2 8 4
5 6 7 16
1 10 11 12
13 9 15 14
And given an image of dimension 5 X 5 as follows:
2 4 5 6 3
3 11 12 7 9
7 15 13 8 1
2 21 25 13 14
17 10 16 19 3
Should transform as:
5 4 3 6 1
3 11 12 7 9
2 15 13 8 3
2 21 25 13 14
7 10 17 19 16
Input Format
First line contains the dimension of the matrix, n
Next nxn lines contain the elements of the matrix in row major order. That is the elements in the first row are given followed by second row and so on
Output Format
Print the transformed nxn matrix in ‘n’ lines
Each line contains the elements of a row separated by a tab.
Note: There is a tab at the end of each line
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I have two sets of classes, C++/CLI classes and native classes.
They are supposed to be counterparts of each other, used for passing messages & data between a managed module and a native module, with a mixed-mode module in between.
The CLI classes are set up thus: (You may have to meditate on this for a moment to see what I'm trying to do.)
public ref class Managed_base abstract
{
unsigned int _Data = 0;
virtual Native_base* GetNativeObject(unsigned int data) = 0;
}
public ref class Managed_derived : Managed_base
{
virtual Native_derived* GetNativeObject(unsigned int data) override
{
Native_derived* NativeObject = new Native_derived();
NativeObject->_Data = data;
return NativeObject;
}
}I'm trying to set it up so that if I call GetNativeObject on any managed derived class, it will return the corresponding derived native class.
That way I don't have to do any ugly casting when I call GetNativeObject.
But the compile error I get is, "Virtual function overriding with a covariant return type is not allowed in a managed class."
So my question is, is there any way to accomplish what I'm trying to do without having to cast the return type of the GetNativeObject method to the appropriate derived type?
Is there any pattern that does this?
EDIT:
I eventually decided to do away with the pure virtual method and the overriding methods in derived classes. I simply put a regular function into each derived class that returns the appropriate derived native class. It is not beautiful, but it works. 
However, I would like to leave this question active, in case someone has any interesting ideas.
The difficult we do right away...
...the impossible takes slightly longer.
modified 12-Sep-20 16:49pm.
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You can help me gird line opengl cli I got it
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Don't post the same non-question to multiple forums.
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Creating an OpenGL view on a Windows Form
I want to use this source code that you put, but with opengl 4.6 Does not run and gives an error
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004D) "extern "C" int stdcall wglMakeCurrent(struct HDC *,struct HGLRC__ *)" (?wglMakeCurrent@@$$J18YGHPAUHDC__@@PAUHGLRC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004E) "extern "C" struct HGLRC__ * stdcall wglCreateContext(struct HDC *)" (?wglCreateContext@@$$J14YGPAUHGLRC__@@PAUHDC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004F) "extern "C" int stdcall SetPixelFormat(struct HDC *,int,struct tagPIXELFORMATDESCRIPTOR const *)" (?SetPixelFormat@@$$J212YGHPAUHDC__@@HPBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000051) "extern "C" int stdcall ChoosePixelFormat(struct HDC *,struct tagPIXELFORMATDESCRIPTOR const *)" (?ChoosePixelFormat@@$$J18YGHPAUHDC__@@PBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000053) "extern "C" int stdcall SwapBuffers(struct HDC *)" (?SwapBuffers@@$$J14YGHPAUHDC__@@@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::SwapOpenGLBuffers(void)" (?SwapOpenGLBuffers@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000054) "extern "C" void __stdcall glClear(unsigned int)" (?glClear@@$$J14YGXI@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000055) "extern "C" void __stdcall glClearColor(float,float,float,float)" (?glClearColor@@$$J216YGXMMMM@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000058) "extern "C" struct HDC__ * stdcall GetDC(struct HWND *)" (?GetDC@@$$J14YGPAUHDC__@@PAUHWND__@@@Z) referenced in function "public: __clrcall OpenGLForm::COpenGL::COpenGL(class System::Windows::Forms::Form ^,int,int)" (??0COpenGL@OpenGLForm@@$$FQ$AAM@P$AAVForm@Forms@Windows@System@@HH@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" void __stdcall glClearColor(float,float,float,float)" (?glClearColor@@$$J216YGXMMMM@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" void __stdcall glClear(unsigned int)" (?glClear@@$$J14YGXI@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall SwapBuffers(struct HDC *)" (?SwapBuffers@@$$J14YGHPAUHDC__@@@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::SwapOpenGLBuffers(void)" (?SwapOpenGLBuffers@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall ChoosePixelFormat(struct HDC *,struct tagPIXELFORMATDESCRIPTOR const *)" (?ChoosePixelFormat@@$$J18YGHPAUHDC__@@PBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall SetPixelFormat(struct HDC *,int,struct tagPIXELFORMATDESCRIPTOR const *)" (?SetPixelFormat@@$$J212YGHPAUHDC__@@HPBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" struct HGLRC__ * stdcall wglCreateContext(struct HDC *)" (?wglCreateContext@@$$J14YGPAUHGLRC__@@PAUHDC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall wglMakeCurrent(struct HDC *,struct HGLRC__ *)" (?wglMakeCurrent@@$$J18YGHPAUHDC__@@PAUHGLRC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" struct HDC__ * stdcall GetDC(struct HWND *)" (?GetDC@@$$J14YGPAUHDC__@@PAUHWND__@@@Z) referenced in function "public: __clrcall OpenGLForm::COpenGL::COpenGL(class System::Windows::Forms::Form ^,int,int)" (??0COpenGL@OpenGLForm@@$$FQ$AAM@P$AAVForm@Forms@Windows@System@@HH@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK1120 16 unresolved externals CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\Debug\CppCLR_WinformsProjekt2.exe 1
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Posting the same question over and over is frowned upon.
The most likely cause of unresolved external references is that you have not included a reference to a necessary DLL.
Open the project properties, go to Linker, Input and add the name(s) of the required LIB file(s).
The difficult we do right away...
...the impossible takes slightly longer.
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I want to use this source code that you put, but with opengl 4.6 Does not run and gives an error
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004D) "extern "C" int stdcall wglMakeCurrent(struct HDC *,struct HGLRC__ *)" (?wglMakeCurrent@@$$J18YGHPAUHDC__@@PAUHGLRC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004E) "extern "C" struct HGLRC__ * stdcall wglCreateContext(struct HDC *)" (?wglCreateContext@@$$J14YGPAUHGLRC__@@PAUHDC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004F) "extern "C" int stdcall SetPixelFormat(struct HDC *,int,struct tagPIXELFORMATDESCRIPTOR const *)" (?SetPixelFormat@@$$J212YGHPAUHDC__@@HPBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000051) "extern "C" int stdcall ChoosePixelFormat(struct HDC *,struct tagPIXELFORMATDESCRIPTOR const *)" (?ChoosePixelFormat@@$$J18YGHPAUHDC__@@PBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000053) "extern "C" int stdcall SwapBuffers(struct HDC *)" (?SwapBuffers@@$$J14YGHPAUHDC__@@@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::SwapOpenGLBuffers(void)" (?SwapOpenGLBuffers@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000054) "extern "C" void __stdcall glClear(unsigned int)" (?glClear@@$$J14YGXI@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000055) "extern "C" void __stdcall glClearColor(float,float,float,float)" (?glClearColor@@$$J216YGXMMMM@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000058) "extern "C" struct HDC__ * stdcall GetDC(struct HWND *)" (?GetDC@@$$J14YGPAUHDC__@@PAUHWND__@@@Z) referenced in function "public: __clrcall OpenGLForm::COpenGL::COpenGL(class System::Windows::Forms::Form ^,int,int)" (??0COpenGL@OpenGLForm@@$$FQ$AAM@P$AAVForm@Forms@Windows@System@@HH@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" void __stdcall glClearColor(float,float,float,float)" (?glClearColor@@$$J216YGXMMMM@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" void __stdcall glClear(unsigned int)" (?glClear@@$$J14YGXI@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall SwapBuffers(struct HDC *)" (?SwapBuffers@@$$J14YGHPAUHDC__@@@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::SwapOpenGLBuffers(void)" (?SwapOpenGLBuffers@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall ChoosePixelFormat(struct HDC *,struct tagPIXELFORMATDESCRIPTOR const *)" (?ChoosePixelFormat@@$$J18YGHPAUHDC__@@PBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall SetPixelFormat(struct HDC *,int,struct tagPIXELFORMATDESCRIPTOR const *)" (?SetPixelFormat@@$$J212YGHPAUHDC__@@HPBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" struct HGLRC__ * stdcall wglCreateContext(struct HDC *)" (?wglCreateContext@@$$J14YGPAUHGLRC__@@PAUHDC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall wglMakeCurrent(struct HDC *,struct HGLRC__ *)" (?wglMakeCurrent@@$$J18YGHPAUHDC__@@PAUHGLRC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" struct HDC__ * stdcall GetDC(struct HWND *)" (?GetDC@@$$J14YGPAUHDC__@@PAUHWND__@@@Z) referenced in function "public: __clrcall OpenGLForm::COpenGL::COpenGL(class System::Windows::Forms::Form ^,int,int)" (??0COpenGL@OpenGLForm@@$$FQ$AAM@P$AAVForm@Forms@Windows@System@@HH@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK1120 16 unresolved externals CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\Debug\CppCLR_WinformsProjekt2.exe 1
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I want to use this source code that you put, but with opengl 4.6 Does not run and gives an error
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004D) "extern "C" int stdcall wglMakeCurrent(struct HDC *,struct HGLRC__ *)" (?wglMakeCurrent@@$$J18YGHPAUHDC__@@PAUHGLRC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004E) "extern "C" struct HGLRC__ * stdcall wglCreateContext(struct HDC *)" (?wglCreateContext@@$$J14YGPAUHGLRC__@@PAUHDC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A00004F) "extern "C" int stdcall SetPixelFormat(struct HDC *,int,struct tagPIXELFORMATDESCRIPTOR const *)" (?SetPixelFormat@@$$J212YGHPAUHDC__@@HPBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000051) "extern "C" int stdcall ChoosePixelFormat(struct HDC *,struct tagPIXELFORMATDESCRIPTOR const *)" (?ChoosePixelFormat@@$$J18YGHPAUHDC__@@PBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000053) "extern "C" int stdcall SwapBuffers(struct HDC *)" (?SwapBuffers@@$$J14YGHPAUHDC__@@@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::SwapOpenGLBuffers(void)" (?SwapOpenGLBuffers@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000054) "extern "C" void __stdcall glClear(unsigned int)" (?glClear@@$$J14YGXI@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000055) "extern "C" void __stdcall glClearColor(float,float,float,float)" (?glClearColor@@$$J216YGXMMMM@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2028 unresolved token (0A000058) "extern "C" struct HDC__ * stdcall GetDC(struct HWND *)" (?GetDC@@$$J14YGPAUHDC__@@PAUHWND__@@@Z) referenced in function "public: __clrcall OpenGLForm::COpenGL::COpenGL(class System::Windows::Forms::Form ^,int,int)" (??0COpenGL@OpenGLForm@@$$FQ$AAM@P$AAVForm@Forms@Windows@System@@HH@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" void __stdcall glClearColor(float,float,float,float)" (?glClearColor@@$$J216YGXMMMM@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" void __stdcall glClear(unsigned int)" (?glClear@@$$J14YGXI@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::Render(void)" (?Render@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall SwapBuffers(struct HDC *)" (?SwapBuffers@@$$J14YGHPAUHDC__@@@Z) referenced in function "public: void __clrcall OpenGLForm::COpenGL::SwapOpenGLBuffers(void)" (?SwapOpenGLBuffers@COpenGL@OpenGLForm@@$$FQ$AAMXXZ) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall ChoosePixelFormat(struct HDC *,struct tagPIXELFORMATDESCRIPTOR const *)" (?ChoosePixelFormat@@$$J18YGHPAUHDC__@@PBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall SetPixelFormat(struct HDC *,int,struct tagPIXELFORMATDESCRIPTOR const *)" (?SetPixelFormat@@$$J212YGHPAUHDC__@@HPBUtagPIXELFORMATDESCRIPTOR@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" struct HGLRC__ * stdcall wglCreateContext(struct HDC *)" (?wglCreateContext@@$$J14YGPAUHGLRC__@@PAUHDC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" int stdcall wglMakeCurrent(struct HDC *,struct HGLRC__ *)" (?wglMakeCurrent@@$$J18YGHPAUHDC__@@PAUHGLRC__@@@Z) referenced in function "protected: int clrcall OpenGLForm::COpenGL::MySetPixelFormat(struct HDC *)" (?MySetPixelFormat@COpenGL@OpenGLForm@@$$FI$AAMHPAUHDC__@@@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "extern "C" struct HDC__ * stdcall GetDC(struct HWND *)" (?GetDC@@$$J14YGPAUHDC__@@PAUHWND__@@@Z) referenced in function "public: __clrcall OpenGLForm::COpenGL::COpenGL(class System::Windows::Forms::Form ^,int,int)" (??0COpenGL@OpenGLForm@@$$FQ$AAM@P$AAVForm@Forms@Windows@System@@HH@Z) CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt2\CppCLR_WinformsProjekt.obj 1
Severity Code Description Project File Line Suppression State
Error LNK1120 16 unresolved externals CppCLR_WinformsProjekt2 C:\Users\living with sweet lo\source\repos\CppCLR_WinformsProjekt2\Debug\CppCLR_WinformsProjekt2.exe 1
modified 30-Jul-20 12:00pm.
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SADEGH2077 wrote: I want to use this source code that you put
Who are you referring to? If you got the code from an article then please use the forum at the end of the article for your question. But please stop reposting it here.
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TO OPENGL 4.6 Not responsive please help
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It has already been suggested to you that you need to provide more information. We have no idea what your problem is and have no way of guessing.
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Write a program in C++ that reads data from a file (ask user to enter file name). The number of elements in file are unknown so, you are supposed to regrow the array and dynamically allocate the memory every time it is needed.
Now, your task is to keep asking user two numbers, one is a num and second is location. Insert the num into that location and move the other elements to the right by re growing the array whenever needed. The function should keep asking user the number and location until user enters -99 in num.
Number = 74, Location = 3
Updated Data: 2 3 74 15 1 82 8 9 10 21 55 12 14 16 18
Number = -22, Location =5
Updated Data: 2 3 74 15 -22 1 82 8 9 10 21 55 12 14 16 18
Number = -99
Program Ended
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Member 14856876 wrote: Write a program in C++
Doesn't say "request the code on a website".
Give it a try first.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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bacon Eddy plz help me in a program...give me ur fb id plzzzz
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I don't have fb, insta nor even twitter.
Also, I don't do private answers; if you have a question, you post it here and have the answer benefit everyone.
Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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