libraries

In my quest to learn C++, I have come across dynamic and static libraries. I generally get the gist of them: compiled code to include into other programs. However, I would like to know a few things about them: Is writing them any different than a normal C++ program, minus the main() function? How does the compiled program get to be a library? It's obviously not an executable, so how do I turn, say 'test.cpp' into 'test.dll'? Once I get it to its format, how do I include it in another program? Is there a standard place to put them, so that whatever compilers/linkers need them can find them

Just wondering if anyone knows of a web-scraping library that takes advantage of Scala's succinct syntax. So far, I've found Chafe , but this seems poorly-documented and maintained. I'm wondering if anyone out there has done scraping with Scala and has advice. (I'm trying to integrate into an existing Scala framework rather than use a scraper written in, say, Python.) Adam Gent First there is a plethora of HTML scraping libs in JVM all you need to do is pimp one of them (pimp my library pattern) . The four I have used are: HtmlUnit - Will emulate the browser and even run Javascript Jericho -

I'm interested in network analysis on large networks with millions of nodes and tens of millions of edges. I want to be able to do things like parse networks from many formats, find connected components, detect communities, and run centrality measures like PageRank. I am attracted to NetworkX because it has a nice api, good documentation, and has been under active development for years. Plus because it is in python, it should be quick to develop with. In a recent presentation (the slides are available on github here ), it was claimed that: Unlike many other tools, NX is designed to handle data

Is there any library which will help me to handle logging in my Node.Js application? All I want to do is, I want to write all logs into a File and also I need an options like rolling out the file after certain size or date. I have incorporated log4js im trying to keep all the configuration details in one file and use only the methods in other application files for ease of maintenance. But it doesnt work as expected. Here is what I'm trying to do var log4js = require('log4js'); log4js.clearAppenders() log4js.loadAppender('file'); log4js.addAppender(log4js.appenders.file('test.log'), 'test');

Whenever I have to add certain library from the internet to my Android project, I add them inside the dependencies in the app level gradle script and it downloads the library for me. Is it possible to download these library files so that I can use them in other projects as well without downloading the whole library and dependency files again? Just go to Maven central and download the libraries. For example, here is Volley . Just click the download JAR button. I would strongly recommend sticking with Gradle / Maven, though, to keep consistency with versions and appropriately handle additional

I'm trying to add OpenCV to an existing Android project of mine but while merging them I ran into the following error: 12-08 16:15:21.951 22052-22052/ai.inbi.face_recognition_robot E/AndroidRuntime: FATAL EXCEPTION: main Process: ai.inbi.wonderful_face_recognition_robot, PID: 22052 java.lang.UnsatisfiedLinkError: Couldn't load uvcNative from loader dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/ai.inbi.wonderful_face_recognition_robot-1.apk"],nativeLibraryDirectories=[/data/app-lib/ai.inbi.wonderful_face_recognition_robot-1, /vendor/lib, /system/lib]]]: findLibrary returned