language-agnostic

问题 I'm working on a small game written in Java (but the question is language-agnostic). Since I wanted to explore various design patterns, I got hung up on the Composite pattern/Entity system (which I originally read about here and here) as an alternative to typical deep hierarchical inheritance. Now, after writing several thousand lines of code, I'm a bit confused. I think understand the pattern and I enjoy using it. I think it's very cool and Starbucks-ish, but it feels that the benefit it

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . In many projects we are developing we need to have CMS functionalities in the back end of the site. On the other end we don't want to or can't commit to a complete front end solution. To explain this better: CMSes like Joomla or DotNetNuke are complete web site solutions, they let you store and publish data.

问题 When you create a DLL you can get notifications about new threads / exiting threads in the DllMain function (DLL_THREAD_ATTACH/DLL_THREAD_DETACH). Is there a way to get these or equivalent notifications from Windows within an (non managed) Executable? 回答1: Yes - include a small stub DLL in your process that simply monitors DLL_THREAD_ATTACH and DLL_THREAD_DETACH in the way you want. 来源： https://stackoverflow.com/questions/3628148/get-notifications-of-new-threads-deleted-threads-under-windows

问题 Are there other types of iterators? Any links that show different types of iterators? The only one I know is .NET's IEnumerable. Particularly for C#, but all others are welcomed too. 回答1: An iterator is a lot of different things in different languages. An obvious example of something "more than just the C# Iterator" is the C++ iterator, which is basically a marker into a sequence. Unlike the C# equivalent, it does not "know" where the sequence starts or ends, it just knows which element it

问题 Suppose you have a large file made up of a bunch of fixed size blocks. Each of these blocks contains some number of variable sized records. Each record must fit completely within a single block and then such records by definition are never larger than a full block. Over time, records are added to and deleted from these blocks as records come and go from this "database". At some point, especially after perhaps many records are added to the database and several are removed - many of the blocks

问题 Say I have the following Penn Tree: (S (NP-SBJ the steel strike) (VP lasted (ADVP-TMP (ADVP much longer) (SBAR than (S (NP-SBJ he) (VP anticipated (SBAR *?*)))))) .) What do abbrevations like VP and SBAR etc mean? Where can I find these definitions? What are these abbreviations called? 回答1: Those are the Penn Treebank tags, for example, VP means "Verb Phrase". The full list can be found here 回答2: The full list of Penn Treebank POS tags (so-called tagset) including examples can be found on

问题 What is the difference between EACCES and EPERM exactly? EPERM is described here as "not super user", but I would usually associate that with EACCES. In fact, I can't recall ever seeing an EPERM in real life. 回答1: EACCES is almost always used when the system call was passed a path that was inaccessible by the current user. EPERM is used in various other situations where you need to be root to perform an action, e.g. kill() on a process that you don't own link() on a directory reboot() 回答2:

问题 I am trying to clear up an issue that occurs with unflushed file I/O buffers in a couple of programs, in different languages, running on Linux. The solution of flushing buffers is easy enough, but this issue of unflushed buffers happens quite randomly. Rather than seek help on what may cause it, I am interested in how to create (reproduce) and diagnose this kind of situation. This leads to a two-part question: Is it feasible to artificially and easily construct instances where, for a given

问题 Probably best illustrated with a small example. Given the relations A < B < C A < P < Q Correct outputs would be ABCPQ or APQBC or APBCQ ... etc. In other words, any ordering is valid in which the given relationships hold. I am most interested in the solution that is easiest to implement, but the best O(n) in speed and time is interesting as well. 回答1: This is called topological sorting. The standard algorithm is to output a minimal element, then remove it and repeat until done. 回答2: Do

问题 Probably best illustrated with a small example. Given the relations A < B < C A < P < Q Correct outputs would be ABCPQ or APQBC or APBCQ ... etc. In other words, any ordering is valid in which the given relationships hold. I am most interested in the solution that is easiest to implement, but the best O(n) in speed and time is interesting as well. 回答1: This is called topological sorting. The standard algorithm is to output a minimal element, then remove it and repeat until done. 回答2: Do