Aggregated List of Libraries

 - [Boost.Asio][1] is really good.
 - [Asio][2] is also available as a stand-alone library.
 - [ACE][3] is also good, a bit more mature and has a [couple][4] of [books][5] to support it.
 - [C++ Network Library][6]
 - [POCO][7]
 - [Qt][8]
 - [Raknet][9]
 - [ZeroMQ][10] (C++)
 - [nanomsg][11] (C Library)
 - [nng][28] (C Library)
 - Berkeley Sockets
 - [libevent][12]
 - [Apache APR][13]
 - [yield][14]
 - Winsock2(Windows only)
 - [wvstreams][15]
 - [zeroc][16]
 - [libcurl][17]
 - [libuv][18] (Cross-platform C library)
 - [SFML&#39;s Network Module][19]
 - [C++ Rest SDK (Casablanca)][20]
 - [RCF](http://www.deltavsoft.com/doc/rcf_user_guide/Intro.html#rcf_user_guide.Intro.WhatIsRcf)
 - [Restbed (HTTP Asynchronous Framework)][21]
 - [SedNL][22]
 - [SDL_net][23]
 - [OpenSplice|DDS][24]
 - [facil.io][25] (C, with optional HTTP and Websockets, Linux / BSD / macOS)
 - [GLib Networking][26]
 - [grpc][27] from Google
 - [GameNetworkingSockets][29] from Valve
 - [CYSockets][30] To do easy things in the easiest way
 - [yojimbo][31]
 - [GGPO][32]
 - [ENet][33]
 - [SLikeNet][34] is a fork of Raknet
 - [netcode][35]
 - [photon][36] is closed source, requires license to use their sdk
 - [crossplatform network][37] - open source non blocking metatemplate framework built on top of boost asio

  [1]: http://www.boost.org/doc/libs/release/doc/html/boost_asio.html
  [2]: http://think-async.com/Asio/
  [3]: http://www.dre.vanderbilt.edu/~schmidt/ACE.html
  [4]: http://www.amazon.com/Network-Programming-Mastering-Complexity-Depth/dp/0201604647/ref=pd_bbs_sr_1?ie=UTF8&amp;s=books&amp;qid=1222141052&amp;sr=8-1
  [5]: http://www.amazon.com/Network-Programming-Systematic-Frameworks-Depth/dp/0201795256/ref=sr_1_2?ie=UTF8&amp;s=books&amp;qid=1222141052&amp;sr=8-2
  [6]: http://cpp-netlib.org/index.html
  [7]: http://pocoproject.org/
  [8]: http://www.qt.io/developers/
  [9]: http://www.jenkinssoftware.com/
  [10]: http://www.zeromq.org/
  [11]: http://nanomsg.org/
  [12]: http://libevent.org/
  [13]: http://apr.apache.org/
  [14]: https://github.com/glycerine/yield
  [15]: http://code.google.com/p/wvstreams/
  [16]: https://zeroc.com/
  [17]: http://curl.haxx.se/libcurl/
  [18]: https://github.com/libuv/libuv
  [19]: http://www.sfml-dev.org/tutorials/2.3/#network-module
  [20]: https://github.com/microsoft/cpprestsdk
  [21]: https://github.com/corvusoft/restbed
  [22]: http://github.com/zenol/sednl
  [23]: https://www.libsdl.org/projects/SDL_net/
  [24]: http://www.prismtech.com/vortex/vortex-opensplice
  [25]: http://facil.io
  [26]: https://developer.gnome.org/gio/stable/gio-gnetworking.h.html
  [27]: http://www.grpc.io/
  [28]: https://github.com/nanomsg/nng
  [29]: https://github.com/ValveSoftware/GameNetworkingSockets
  [30]: https://github.com/OmarAflak/Asynchronous-Socket-Class-C-Windows
  [31]: https://github.com/networkprotocol/yojimbo
  [32]: https://github.com/pond3r/ggpo
  [33]: http://enet.bespin.org
  [34]: https://github.com/SLikeSoft/SLikeNet
  [35]: https://github.com/networkprotocol/netcode
  [36]: https://www.photonengine.com
  [37]: https://bitbucket.org/ptroen/crossplatformnetwork

In crontab, I can use an asterisk to mean every value, or &quot;*/2&quot; to mean every even value.

Is there a way to specify every **odd** value? (Would something like &quot;1+*/2&quot; work?)

Specifying &quot;all odd values&quot; in crontab?

What are the **benefits and drawbacks** with using **Centralized versus Distributed** Version Control Systems (DVCS)? Have you run into any problems in DVCS and how did you safeguard against these problems? *Keep the discussion tool agnostic and flaming to minimum.*

For those wondering what DVCS tools are available, here is a list of the best known free/open source DVCSs:

  - [Git][1], (written in C) used by the [Linux Kernel and Ruby on Rails][2].
  - [Mercurial][5], (written in Python) used by [Mozilla and OpenJDK][6].
  - [Bazaar][7], (written in Python) used by [Ubuntu developers][8].
  - [Darcs][9], (written in Haskell).


  [1]: http://git.or.cz/
  [2]: http://git.or.cz/gitwiki/GitProjects
  [5]: https://www.mercurial-scm.org
  [6]: https://www.mercurial-scm.org/wiki/ProjectsUsingMercurial
  [7]: http://bazaar-vcs.org/
  [8]: https://wiki.ubuntu.com/UbuntuDevelopment
  [9]: http://darcs.net/

Comparison between Centralized and Distributed Version Control Systems

I haven&#39;t done work in C/C++ for a little bit and was just wondering what people&#39;s favorite cross platform libraries are to use.  

I&#39;m looking for something that is a good quick and dirty library as well as a library that is a little more robust.  Often those are two different libraries and that&#39;s okay.

Best C/C++ Network Library

<p>I haven't done work in C/C++ for a little bit and was just wondering what people's favorite cross platform libraries are to use.</p>
<p>I'm looking for something that is a good quick and dirty library as well as a library that is a little more robust.  Often those are two different libraries and that's okay.</p>


Why does the `sizeof` operator return a size larger for a structure than the total sizes of the structure&#39;s members?

Why isn&#39;t sizeof for a struct equal to the sum of sizeof of each member?

What is the best way to disable the warnings generated via `_CRT_SECURE_NO_DEPRECATE` that allows them to be reinstated with ease and will work across Visual Studio versions?

Disabling Warnings generated via _CRT_SECURE_NO_DEPRECATE

I&#39;d like to find a good object oriented C++ (as opposed to C) wrapper for sqlite. What do people recommend? If you have several suggestions please put them in separate replies for voting purposes. Also, please indicate whether you have any experience of the wrapper you are suggesting and how you found it to use.

What is a good OO C++ wrapper for sqlite

What are the C++ rules for calling the base class constructor from a derived class?

For example, I know in Java, you must do it as the first line of the subclass constructor (and if you don&#39;t, an implicit call to a no-arg super constructor is assumed - giving you a compile error if that&#39;s missing).

What are the rules for calling the base class constructor?

What does the `explicit` keyword mean in C++?

What does the explicit keyword mean?

Is there a clean, preferably standard method of trimming leading and trailing whitespace from a string in C? I&#39;d roll my own, but I would think this is a common problem with an equally common solution.

How do I trim leading/trailing whitespace in a standard way?

I&#39;m trying to start an external application through `system()` - for example, `system(&quot;ls&quot;)`. I would like to capture its output as it happens so I can send it to another function for further processing. What&#39;s the best way to do that in C/C++?


Capturing stdout from a system() command optimally

To my amazement I just discovered that the C99 stdint.h is missing from MS Visual Studio 2003 upwards.  I&#39;m sure they have their reasons, but does anyone know where I can download a copy?  Without this header I have no definitions for useful types such as uint32_t, etc.

C99 stdint.h header and MS Visual Studio

I notice that modern C and C++ code seems to use `size_t` instead of `int`/`unsigned int` pretty much everywhere - from parameters for C string functions to the STL.  I am curious as to the reason for this and the benefits it brings.

unsigned int vs. size_t

In C++, what&#39;s the easiest way to get the local computer&#39;s IP address and subnet mask?

I want to be able to detect the local machine&#39;s IP address in my local network. In my particular case, I have a network with a subnet mask of 255.255.255.0 and my computer&#39;s IP address is 192.168.0.5. I need to get these had two values programmatically in order to send a broadcast message to my network (in the form 192.168.0.255, for my particular case)

Edit: Many answers were not giving the results I expected because I had two different network IP&#39;s. [Torial][1]&#39;s code did the trick (it gave me both IP addresses). 

Edit 2: Thanks to [Brian R. Bondy][2] for the info about the subnet mask.


  [1]: https://stackoverflow.com/questions/122208/get-the-ip-address-of-local-computer#122235
  [2]: https://stackoverflow.com/questions/122208/get-the-ip-address-of-local-computer#122225

How can I get the IP Address of a local computer?

I&#39;m writing an iPhone app that takes a photo and then uploads it to a server.  How do I upload a photo to a server with Cocoa?  I suppose I use NSUrl somewhere.

Thanks!

How can I upload a photo to a server with the iPhone?

When developing an app that will listen on a TCP/IP port, how should one go about selecting a default port?  Assume that this app will be installed on many computers, and that avoiding port conflicts is desired.

How should one go about choosing a default TCP/IP port for a new service?

I want to create a new net.tcp://localhost:x/Service endpoint for a WCF service call, with a dynamically assigned new open TCP port.

I know that TcpClient will assign a new client side port when I open a connection to a given server.

Is there a simple way to find the next open TCP port in .NET?

I need the actual number, so that I can build the string above. 0 does not work, since I need to pass that string to another process, so that I can call back on that new channel.


Find the next TCP port in .NET

How do you detect if `Socket#close()` has been called on a socket on the remote side?

Content Type	Original Author	Original Content on Stackoverflow
Question	Hortitude	View Question on Stackoverflow
Solution 1 - C++	Ferruccio	View Answer on Stackoverflow

Best C/C++ Network Library

C++ Problem Overview

C++ Solutions

Solution 1 - C++

Comparison between Centralized and Distributed Version Control Systems

Specifying "all odd values" in crontab?

Attributions