I am relatively new to programming and have been tasked with writing an xml parser using Xerces. My project is in c++ on Microsoft Visual Studio 2015. Are there any good examples for Xerces being used on Windows? I have looked through Apache and it is horrible and has been talked down on by all my coworkers. Most of the help I've found has been for Linux command line or overly complicated examples for specific use cases. Is there anywhere to find a simple example of xerces being used to parse a simple, known xml file? Thank you for any and all help as it is much appreciated!
The official Xerces documentation provides a lot of examples using both DOM and SAX parsing technique. You can find it here: https://xerces.apache.org/xerces-c/samples-3.html.
In order to build the examples and use them as direct references for your code, you have to follow the build instructions in https://xerces.apache.org/xerces-c/build-3.html.
For my personal requirements I created a VS 2013 solution for both Xerces library generation and samples compilation. The command to invoke for generation of the VS solution should for you be something simliar like
cmake -G "Visual Studio 14 2015 Win64" -DCMAKE_INSTALL_PREFIX=D:\libs \path\to\xerces-c\source
where you can set the destination path of the output files via CMAKE_INSTALL_PREFIX , while \path\to\xerces-c\source should be the top level directory of the Xerces download, where the CMakeLists.txt file is located. Naturally you will need to install cmake on your Windows computer, which can be downloaded here: https://cmake.org/download/
Finally in order to start the examples, just use the generated VS solution or open a command prompt and start the desired program. For example use the "DOMPrint" application by calling .\DOMPrint.exe xxx.xml. The location of the binaries is in ${CMAKE_INSTALL_PREFIX}/bin.
Please be aware that you will have to compile or provide the Xerces .dll files to be able to start any programm related with the library. It also can be built using the generated VS solution out of cmake.
Please don't hesitate to ask further questions, if the issue is still up-to-date!
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I read this tutorial to try to set up Vulkan in Visual Studio. I got to the very end, compiled, and got this:
A few more screenshots:
I'm using version 1.1.114.0 while the tutorial is using 1.1.77.0, which may be at the root of the issue. However, I have not been able to find another tutorial showing how to set Vulkan up like this. How do I get Vulkan to work in Visual Studio?
I believe you must have missed a step in the tutorial. Specifically, look for the text
Next, open the editor for library directories under Linker -> General
in the linked tutorial page.
In the linker Input tab, either use a complete path to the Vulkan library (for example C:\VulkanSDK\1.1.101.0\Lib\vulkan-1.lib) or in the General tab, add the location of the library (for example C:\VulkanSDK\1.1.101.0\Lib to the Additional Library Directories entry).
If you can express the values in terms of an environment variable, then you'd want to use either VULKAN_SDK or VK_SDK_PATH, which in the above examples would resolve to C:\VulkanSDK\1.1.101.0. That way when you update your Vulkan SDK you don't need to update your project files, and they'll work on other machines that might have different versions installed.
In the long run I'd recommend switching to CMake for project generation, rather than maintaining Visual Studio project files directly. With CMake, adding a Vulkan dependency to your application is as easy as doing this:
find_package(Vulkan REQUIRED)
target_link_libraries(MyApp Vulkan::Vulkan)
You can find existing CMake-based Vulkan examples here or here.
I'm having difficulties trying to compile an opensource framework (EmulationStation) in VS2015 on Windows. I've never used any of the tools before, apart from Visual Studio - so please forgive me if these are some obvious mistakes.
The guide says i need to do like this:
Boost (you'll need to compile yourself or get the pre-compiled binaries)
Eigen3 (header-only library)
FreeImage
FreeType2 (you'll need to compile)
SDL2
cURL (you'll need to compile or get the pre-compiled DLL version)
(Remember to copy necessary .DLLs into the same folder as the executable: probably FreeImage.dll, freetype6.dll, SDL2.dll, libcurl.dll, and zlib1.dll. Exact list depends on if you built your libraries in "static" mode or not.)
CMake (this is used for generating the Visual Studio project)
(If you don't know how to use CMake, here are some hints: run cmake-gui and point it at your EmulationStation folder. Point the "build" directory somewhere - I use EmulationStation/build. Click configure, choose "Visual Studio [year] Project", fill in red fields as they appear and keep clicking Configure (you may need to check "Advanced"), then click Generate.)
This is how my CMake looks like (it says generating done)
I get alot of compilation errors in visual studio when trying to build though:
1) Cannot open include file: 'curl/curl.h': No such file or directory (compiling source file C:\Users\retropie\Documents\GitHub\EmulationStation\es-app\src\guis\GuiMetaDataEd.cpp) emulationstation C:\Users\retropie\Documents\GitHub\EmulationStation\es-core\src\HttpReq.h
Where do I get this header file from?
2) 'round': redefinition; different exception specifications (compiling source file C:\Users\retropie\Documents\GitHub\EmulationStation\es-app\src\guis\GuiMenu.cpp) emulationstation C:\Users\retropie\Documents\GitHub\EmulationStation\es-core\src\Util.h 18
I have a lot of these errors with round. Am I missing a reference to a library?
Another screendump of some of the errors from VS2015:
Hope someone can point me in the right direction.
I am currently in de same boat as you, trying to get ES building under MSVS2015.
I am also very green, so hopefully others chime in as well.
Regarding the 'round' errors, apparently the MS compiler has no knowledge of these. For this issue, and some others, the newer ES fork by Herdinger has fixed this.
As this is currently the most active ES branch out there, and has the explicit goal of consolidating at least some of the backlog of PRs from the original Aloshi git, I would suggest you use this one.
In issue #4, there is some more information on building in recent VS versions. There is also a link for the precompiled cURL libs, including the header.
Having gone that far, I am sad to say that I still do not have a succesfull build as of yet. Compiling is no problem, however linking gives me a LNK2005 error.
Hope this helps a bit. Let me know how you fare.
I'm really interested in an Arduino IDE project from GitHub, but since I'm a new programmer i don't have figured out how to compile those source files on my Mac. There is already ported to Mac as it shows on the version 0.6.0.0 changelog but i just does not know how to do it.
Can someone provide instructions for me?
GitHub link:https://github.com/aporto/mariamole
So as I'm sure you've noticed, that project is a vcxproj-- i.e visual studio. Compiling it on Mac would require some finagling. I don't have experience myself, but I found this in my queries for you
How to support both vcxproj to cmake on a project?
You're going to want to read up on a lot of resources to try to get a better understanding and maybe form a better google query. Alternatively the easiest route would just to get your hands on a windows machine to build this
Good luck!
You have two options:
1) There's already a cmake project included in the project file. It's used for compiling it at Linux
2) There's also a Qt .pro file, also included in the project files, that you can load at Qt Creator
Is it possible to compile libexif with Visual Studio 2010? I have been trying to do so and have been running into a whole slew of problems. I cannot find any information about whether anybody has successfully done this before. I know I can use MinGW to compile the library, but I am in a situation where I need it to be compiled with Visual Studio and then need to link to it from a Visual C++ app. Is this possible?
To answer your question: Yes it is possible... but it is a bit of a hack. Libexif uses functions that MSVC has chosen not to implement. See my working example VS2010 project below (if you don't like downloading files then skip to my explanation of what needed changing to get it to work below):
https://www.dropbox.com/s/l6wowl8pouux01a/libexif-0.6.21_CompiledInVS2010%2BExample.7z?dl=0
To elaborate, the issues that needed a "hack" (as hinted in the LibExif readme-win32.txt documentation) are:
Libexif uses inline in several places which is not defined in VS for C, only C++ (see this)
Libexif uses snprintf extensively in the code which is not defined in VS (see here)
You need to create the config.h yourself without a ./configure command to help you. You could read through the script but most of it doesn't make sense for Windows VS2010.
You will need to define GETTEXT_PACKAGE because it's probably setup in the configure file. I just choose UTF-8, whether that is correct or not I'm not sure.
There was a random unsigned static * that needed to be moved from a .c file to the .h file as C in VS doesn't allow you to create new variables inside functions in the particular way they were trying to do.
Read the "readme-win32.txt" file. Advice is:
hack yourself a build system somehow. This seems to be the Windows way of doing things.
Don't get your hopes up. The *nix way of doing things is the configuration script that needs to be run first. It auto-generates source files to marry the library to the specific flavor of *nix. The configuration script is almost half a megabyte. Three times as much code as in the actual .c files :) You cannot reasonably get that working without MinGW so you can execute the script. Once you got that done, you've got a better shot at it with a VS solution. As long as it doesn't use too much C99 specific syntax.
For my bachelors thesis, I am implementing a distributed version of an algorithm for factoring large integers (finding the prime factorisation). This has applications in e.g. security of the RSA cryptosystem.
My vision is, that clients (linux or windows) will download an application and compute some numbers (these are independant, thus suited for parallelization). The numbers (not found very often), will be sent to a master server, to collect these numbers. Once enough numbers have been collected by the master server, it will do the rest of the computation, which cannot be easily parallelized.
Anyhow, to the technicalities. I was thinking to use Boost::Asio to do a socket client/server implementation, for the clients communication with the master server. Since I want to compile for both linux and windows, I thought windows would be as good a place to start as any. So I downloaded the Boost library and compiled it, as it said on the Boost Getting Started page:
bootstrap
.\bjam
It all compiled just fine. Then I try to compile one of the tutorial examples, client.cpp, from Asio, found (here.. edit: cant post link because of restrictions). I am using the Visual C++ compiler from Microsoft Visual Studio 2008, like this:
cl /EHsc /I D:\Downloads\boost_1_42_0 client.cpp
But I get this error:
/out:client.exe
client.obj
LINK : fatal error LNK1104: cannot open file 'libboost_system-vc90-mt-s-1_42.lib'
Anyone have any idea what could be wrong, or how I could move forward? I have been trying pretty much all week, to get a simple client/server socket program for c++ working, but with no luck. Serious frustration kicking in.
Thank you in advance.
The reason the build is failing is because it cannot find the library file containing boost system. Boost includes a "handy" autolinking feature, such that when you include a header file for a binary libaray (as opposed to a header only library), boost automatically tells the compiler that it should link in the library. The downside to this is that boost doesn't tell the compiler where to find the library.
The short answer is to read a little further in the boost getting started guide. This page shows you how to add the necessary flags to the compiler command line: Getting started on windows: linking from the command line.
The first thing you have to do is find the .lib file. Boost hides them in a deep directory structure, so search for it starting in the directory you ran bjam from. Make note of the directory where the file is. You may also wish to use bootstrap --prefix=/some/install/location and bjam install to install boost somewhere other than the source directory in which you built it.
Are you building your project using a Visual Studio solution, or on the command line?
If you are using a solution file, find the link page in the solution properties. There should be a box where you can enter additional library paths. Add the directory in which you boost .lib files reside to this box.
If you are using cl on the command link, familiarize yourself with the command line options for cl and link. You can pass commands to the linker using the cl option /link, and the linker command you are looking for is /libpath.