Has anyone evaluated these libraries for their pros and cons as a cross-platform library?
I understand NSPR is very old and stable, but how does it compare to Microsoft Casablanca C++ rest SDK and Facebook folly.
Microsoft Casablanca is capable of running on iOS and Android.
But if I am looking for supporting only OSX, Linux and Windows which one should I go with and why?
Is there any other cross-platform library I should look at?
I was look for a cross platform HTTP client in C++. The following link gives a brief on many options available there,
http://kukuruku.co/hub/cpp/a-cheat-sheet-for-http-libraries-in-c
I have around of 4 years experience in C#.Net programming and i am developing a client server application. The server application will be insalled on CentOS and client application will be installed in Windows OS. But, i don't have much knowledge about c++ programming on linux platform. So, my question is that can i create a console application in Windows OS and compile it for linux platform. it is not necessary that compile it on Windows. but, it should be executed in linux platform. I am new in linux programming.
Presently i am using TC++ editor. Can i use Visual Studio 2010 to build server application for linux platform?
if there are another approach then please suggest me.
Thanks.
You can develop the client in C# and the server in C++, if you prefer. Consider that unlike C#, there is no standard socket library yet, and you'll have to rely on either system calls or their higher level wrappers (like boost).
I've to tell you that Windows uses BSD sockets (its own version, with some modifications though), therefore with a few preprocessors checks, you can make your application portable.
In your case, I'd suggest you to go for boost.asio which will hide all low-level stuff for you. It's even cross-platform.
Maybe you can use VS as an editor ; Make sure that you do not include any windows specific libs; There is an option of using cygwin and doing a cross compilation. Check the links
How to cross compile from windows g++ cygwin to get linux executable file
I guess it will be more of a pain. Better use Virtual Box --> linuxMint/Ubuntu + Eclipse with C++ plugin or some other C++ editor...
I'm looking for cross platform open source third party library for web services which support c++. I have generated c++ files using WSMakeStubs utility but it uses Core Foundation data types. I want a library which provide web service call through c++ so that I can use it on Windows and Mac both the platform.
I wanted stubs that can be used on both Windows and Mac platform.
Could any one suggest me good library.
thanks
I would like to recommend gSoap. In the company I'm working at, we use it for about 7 years now (since version 2.6.0, the actual version is 2.8.3) and only made good experiences with it. Look at the success stories to get an overview of the companies which are using it.
Related:
C++ and SOAP
What is a good platform for devoloping web services in C++?
A Good C++ Library for SOAP
pion is a possibility, though I don't know how it compares to gSoap or other alternatives. I got it working an evening then got distracted with other reverse economies. I seem to remember it having fewer dependencies of the others I researched.
I am looking for a cross platform Library in C++ that can run a web server.
Does any one know if tntnet can work on windows computers.
or libmicrohttpd
POCO has a HTTP server, among lots of other useful stuff. Runs on Windows, Linux, etc.
Currently tntnet does not support windows. It is possible to port tntnet to windows but nobody has done the work. Sorry.
The boost.asio library documentation includes several example HTTP servers
http://www.boost.org/doc/libs/1_42_0/doc/html/boost_asio/examples.html
I fond these extremely useful in developing an embedded web server for my own applications.
This might not answer your question directly, but if you have your heart set on one of those, you could always compile them in cygwin.
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I'm trying to develop/port a game to Android, but it's in C, and Android supports Java, but I'm sure there must be a way to get a C app on there, anyone knows of a way to accomplish this?
For anyone coming to this via Google, note that starting from SDK 1.6 Android now has an official native SDK.
You can download the Android NDK (Native Development Kit) from here:
https://developer.android.com/ndk/downloads/index.html
Also there is an blog post about the NDK:
http://android-developers.blogspot.com/2009/06/introducing-android-15-ndk-release-1.html
The Android NDK is a toolset that lets you implement parts of your app in native code, using languages such as C and C++. For certain types of apps, this can help you reuse code libraries written in those languages.
For more info on how to get started with native development, follow this link.
Sample applications can be found here.
Normally, you have to:
Install Google Android NDK. It
contains libs, headers, makfile
examples and gcc toolchain
Build an executable from your C code
for ARM, optimize and link it with
provided libs if required
Connect to a phone using provided
adb interface and test your
executable
If you are looking to sell an app:
Build a library from your C code
Create simple Java code which will
use this library
Embed this library into application
package file
Test your app
Sell it or distribute it for free
Google has released a Native Development Kit (NDK) (according to http://www.youtube.com/watch?v=Z5whfaLH1-E at 00:07:30).
Hopefully the information will be updated on the google groups page (http://groups.google.com/group/android-ndk), as it says it hasn't been released yet.
I'm not sure where to get a simple download for it, but I've heard that you can get a copy of the NDK from Google's Git repository under the donut branch.
The official position seems to be that this isn't something you'd ever "want to do". See this thread on the Android Developers list. Google envisage android running on a variety of different devices (CPUs, displays, etc). The best way to enable development is therefore to use (portable) managed code that targets the Dalvik VM. For this reason, the Android SDK doesn't support C/C++.
BUT, take a look at this page:
Android includes a set of C/C++
libraries used by various components
of the Android system. These
capabilities are exposed to developers
through the Android application
framework.
The managed application framework appears to be layered on-top of these libraries. The page goes on to list the C/C++ libs: standard C library, media, 3D, SQL lite, and others.
So all you need is a compiler chain that will compile C/C++ to the appropriate CPU (ARM, in the case of the G1). Some brief instructions on how to do this are here.
What I don't know is where to find descriptions of the APIs that these libraries provide. I'd guess there may be header files buried in the SDK somewhere, but documentation may be sketchy/missing. But I think it can be done!
Hope thats useful. For the record, I haven't written any native android apps - just a few simple managed ones.
Andy
You can use nestedvm to translate C (or other GCC languages) into Java bytecode, and use that as the basis of your port. For example, see the Android port of Simon Tathams portable puzzle collection.
I expect this method is made obsolete by the NDK, but it might not be in if some networks or something don't allow people to upgrade their phones.
Google has already launched Google I/O 2011: Bringing C and C++ Games to Android session which is available at http://www.youtube.com/watch?v=5yorhsSPFG4
which is good to understand the use of NDK for writing application in c and c++ for android.
If you just want to cross compile any console based native game and run them on android then this Article has shown 3 methods for the same.
1: Static compilation using standalone toolchain
2: Cross compilation using Android NDK’s toolchain
3: Cross compilation using AOSP source code
Maybe you are looking for this?
http://www.mosync.com/
It is a middle layer for developing for several mobile platforms using c++.
Looking at this it seems it is possible:
http://openhandsetmagazine.com/2007/11/running-c-native-applications-on-android-the-final-point/ (now only available via the WayBack Machine)
"the fact is only Java language is supported doesn’t mean that you cannot develop applications in other languages. This have been proved by many developers, hackers and experts in application development for mobile. The guys at Elements Interactive B.V., the company behind Edgelib library, succeeded to run native C++ applications on the Android platform, even that at this time there is still many issues on display and sound … etc. This include the S-Tris2 game and a 3D animation demo of Edgelib."
Since 2009 there is a development on this matter.
Necessitas - Qt(C++ framework) for Android
Getting started video.
Take a look at google ndk group it looks promising, first version of the NDK will be available in 1H2009.
Update:
And it is released http://android-developers.blogspot.com/2009/06/introducing-android-15-ndk-release-1.html
I'm not sure the NDK provides full coverage of the official Java API.
From http://developer.android.com/sdk/ndk/index.html#overview :
Please note that the NDK does not
enable you to develop native-only
applications. Android's primary
runtime remains the Dalvik virtual
machine.
Google just released the NDK which allows exactly that.
http://feedproxy.google.com/~r/blogspot/hsDu/~3/2foWz7hwFtE/introducing-android-15-ndk-release-1.html
It can be found here:
http://developer.android.com/sdk/ndk/1.5_r1/index.html
This blog post may be a good start: http://benno.id.au/blog/2007/11/13/android-native-apps
Unfortunately, lots of the important stuff is "left as an exercise to the reader".
I do not know a tutorial but a good development tool: Airplay SDK from Ideaworks Labs. (Recently rebranded "Marmelade") Using C/C++ you can build apps for Windows Mobile, iPhones, Android. The only component I didn't like was the GUI composer - a buggy one, but you always can substitute it with the Notepad.
You can download c4droid and then install the GCC plugin and install to your SD. From the shell I just traverse to the directory where the GCC binary is and then call it to make an on board executable.
find / -name gcc
/mnt/sdcard/Android/data/com.n0n3m4.droidc/files/gcc/bin/arm-linux-androideabi-gcc
cat > test.c
#include<stdio.h>
int main(){
printf("hello arm!\n");
return 0;
}
./arm-linux-androideabi-gcc test.c -o test
./test
hello arm!
This three steps are good to have and store in this post.
1) How to port native c code on android
2) http://www.integratingstuff.com/2010/12/12/calling-native-c-code-through-jni-in-android-applications/
3) http://mindtherobot.com/blog/452/android-beginners-ndk-setup-step-by-step/
Native C/c++ Files libstdc++.* from your Ubuntu are x86 (or x86_64) binaries but Android devices and emulators are ARM. Of course, this will not work anyway, even if you'll set correct soname. This is very naive way which leads nowhere. Android has very limited support of C++ meaning there is no exceptions, standard C++ library (including STL) and RTTI. If you need such functionality, use my custom NDK distribution from
http://crystax.net/android/ndk.php - it support full C++ features listed above.
Why is there error: undefined reference to '__cxa_end_cleanup' link error. Android stlport
time. Because there is no link to libstdc + +. A. So wrong.
Because it uses some static library, it is necessary to link the full libstdc + +. A. Can
http://crystax.net/android/ndk.php here to download the package
sources \ cxx-stl \ gnu-libstdc + + \ libs \ armeabi directory.
Android on its own libstdc + + support is limited, it must be linked to a complete libstdc +
+. A the job.
Add file in Android.mk LOCAL_LDFLAGS = $ (LOCAL_PATH) / libs / libcurl.a \
$ (LOCAL_PATH) / libs / liblua.a \
`$ (LOCAL_PATH) / libs / libstdc + +. A`
And LOCAL_CPPFLAGS + =-lstdc + +-fexceptions can be compiled
There is a plan to allow C/C++ libraries in the next SDK version of Android (Codename Eclair?)To date, it's not possible through the Android Java SDK. However, you can grab the HUGE open source project, roll your own libraries, and then flash your own device...but anyone who wants to use your library will have to flash your custom build as well.
Short answer: You can't.
#Backslash17: Looking through the article and the following link with installation instructions, all the company got working is to launch a self compiled executable on the emulator, bypassing the android framework. Once you have the emulator you can telnet in and have a linux shell. Running a linux program there is trivial of course.
But that's not working for phones without jailbreak(aka root access) and not deliverable on the market.
Unless Google opens other opportunities or someone writes a custom compiler that compiles Language X into Dalvik bytecode (Dalvik is the VM that runs Android programs) you won't be able to write native code.