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mmap() vs. reading blocks

I'm working on a program that will be processing files that could potentially be 100GB or more in size. The files contain sets of variable length records. I've got a first implementation up and running and am now looking towards improving performance, particularly at doing I/O more efficiently since...
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Implications of foldr vs. foldl (or foldl')

... @Desty because it produces new part of its overall result on each step -- unlike foldl, which collects its overall result and produces it only after all the work is finished and there are no more steps to perform. So e.g. foldl (flip (:)) [] [1..3] == [3,2,1], so scanl (f...
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]

... v.end(); ++it) //v is some [std] container { //.. } Or, more generally, //good : auto increases readability here for(auto it = std::begin(v); it != std::end(v); ++it)//v could be array as well { //.. } But when the type is not very well-known and infrequently used , then I think ...
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angular.element vs document.getElementById or jQuery selector with spin (busy) control

... '#some-id' ) ); You wrap the Document.querySelector() native Javascript call into the angular.element() call. So you always get the element in a jqLite or jQuery object, depending whether or not jQuery is available/loaded. Official documentation for angular.element: If jQuery is available, angula...
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How to unit test abstract classes: extend with stubs?

... Write a Mock object and use them just for testing. They usually are very very very minimal (inherit from the abstract class) and not more.Then, in your Unit Test you can call the abstract method you want to test. You should test abstract class that contain some logic like all other ...
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MsDeploy is returning 403 forbidden

...vice from a remote machine. (If the correct ports and stuff are opened and all that jazz.) I think this helps your situation. At least you won't get 403's but you may have some other MsDeploy error. share | ...
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Troubleshooting “Illegal mix of collations” error in mysql

... This is generally caused by comparing two strings of incompatible collation or by attempting to select data of different collation into a combined column. The clause COLLATE allows you to specify the collation used in the query. For exa...
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Why is it said that “HTTP is a stateless protocol”?

HTTP has HTTP Cookies. Cookies allow the server to track the user state, the number of connections, last connection, etc. 1...
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Passing A List Of Objects Into An MVC Controller Method Using jQuery Ajax

...() { $('#result').html('"PassThings()" successfully called.'); }, failure: function (response) { $('#result').html(response); } }); }); public void PassThings(List<Thing> things) { var t = things; } public class Th...
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What should I do if two libraries provide a function with the same name generating a conflict?

...either of them you can wrap one of them up. That is compile another (statically linked!) library that does nothing except re-export all the symbols of the original except the offending one, which is reached through a wrapper with an alternate name. What a hassle. Added later: Since qeek says he's ta...