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Haskell: Lists, Arrays, Vectors, Sequences
...de has aliased as String. Char lists are convient, but tend to run on the order of 20 times slower than C strings, so feel free to use Data.Text or the very fast Data.ByteString. I'm sure there are other sequence oriented libraries I'm not thinking of right now.
Conclusion
90+% of the time I ne...
How do I check if a type is a subtype OR the type of an object?
..., it's a bit awkward to read and write, and easy to mess up (reversing the order of potentialBase and potentialDescendant can be deadly).
– jrh
Dec 11 '17 at 13:40
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Can I multiply strings in Java to repeat sequences? [duplicate]
...
You have to make some assumptions in order to solve real world problems. In this case, I'm using maven on my current project. I have a pom.xml set up with the commons-lang dependency. It made it easier for me to answer his question, in short. And I'm not exactly...
When should I use a table variable vs temporary table in sql server?
...T INTO @T
output inserted.* into #T
SELECT TOP 1000000 ROW_NUMBER() OVER (ORDER BY @@SPID), 0
FROM master..spt_values v1, master..spt_values v2
SET STATISTICS TIME ON
/*CPU time = 7016 ms, elapsed time = 7860 ms.*/
UPDATE @T SET Flag=1;
/*CPU time = 6234 ms, elapsed time = 7236 ms.*/
DELETE FR...
What's the rationale for null terminated strings?
...o say to D compiler your source use utf-8 you have to put some stupid byte order mark at beginning. I write stupid because I know of not editor doing that, especially for UTF-8 that is supposed to be ASCII compatible).
share...
What is Cache-Control: private?
...eeds to send the resource to client? Maybe the resource never changed.
In order to resolve this problem, HTTP1.1 gives last-modifided head. The server gives the last modified date of the response to client. When the client need this resource, it will send If-Modified-Since head field to server. If...
Why do we need fibers
...one more thing you can do with Enumerators: they allow you to apply higher-order Enumerable methods to other iterators other than each. Think about it: normally all the Enumerable methods, including map, select, include?, inject, and so on, all work on the elements yielded by each. But what if an ob...
Shell one liner to prepend to a file
...bash example above that the double quotes span over the carriage return in order to demonstrate prepending multiple lines. Check your shell and text editor are being cooperative. \r\n comes to mind.
– John Mee
Mar 19 '10 at 5:05
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How to find the lowest common ancestor of two nodes in any binary tree?
...ew potential algorithms faster, yet I'm pretty sure it does not change the order of any existing algorithm. Hope this helps.
– Kevin Cathcart
Oct 7 '09 at 4:25
1
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Templated check for the existence of a class member function?
...rer. Other benefits are the fact that has_toString can be passed to higher order algorithms and it can also be defined at function scope, so there is no need to pollute the namespace scope with implementation details.
Boost.TTI
Another somewhat idiomatic toolkit to perform such a check - even thoug...