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Why would anyone use set instead of unordered_set?

C++0x is introducing unordered_set which is available in boost and many other places. What I understand is that unordered_set is hash table with O(1) lookup complexity. On the other hand, set is nothing but a tree with log(n) lookup complexity. Why on earth would anyone use set instead ...
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Android Writing Logs to text File

I'm Trying to Write Logs to Custom Log.txt File on Android File using this code of Mine but then this method creates file but contains nothing. Basically I want to read previous contents of the file and then append my data with the existing content. ...
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What blocks Ruby, Python to get Javascript V8 speed? [closed]

...s Ruby, Python to get Javascript V8 speed? Nothing. Well, okay: money. (And time, people, resources, but if you have money, you can buy those.) V8 has a team of brilliant, highly-specialized, highly-experienced (and thus highly-paid) engineers working on it, that have decades of experience (I'm ...
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How to get maximum value from the Collection (for example ArrayList)?

... list. E.g. suppose the arrayList stored values are : 10, 20, 30, 40, 50 and the max value would be 50 . 15 Answers ...
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What is the best way to use a HashMap in C++?

I know that STL has a HashMap API, but I cannot find any good and thorough documentation with good examples regarding this. ...
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Creating a range of dates in Python

I want to create a list of dates, starting with today, and going back an arbitrary number of days, say, in my example 100 days. Is there a better way to do it than this? ...
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Difference between MVC 5 Project and Web Api Project

I am new to ASP.NET MVC and Web API and trying to get the basics. AFAIK, we have project templates in VS 2013, named as MVC , Web API and Both of them together . ...
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Getting GDB to save a list of breakpoints

...but not in a format that would work well with reusing them using the --command as in this question . Does GDB have a method for dumping them into a file acceptable for input again? Sometimes in a debugging session, it is necessary to restart GDB after building up a set of breakpoints for testing. ...
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When would you use a WeakHashMap or a WeakReference?

...mplementation of so I'm trying to figure out what the use case for them is and how the implementation would work. When have you needed to use a WeakHashMap or WeakReference and how was it used? ...
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How can I properly handle 404 in ASP.NET MVC?

.../shay/archive/2009/03/06/real-world-error-hadnling-in-asp-net-mvc-rc2.aspx and works in ASP.net MVC 1.0 as well Here's how I handle http exceptions: protected void Application_Error(object sender, EventArgs e) { Exception exception = Server.GetLastError(); // Log the exception. ILogger ...