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What is the purpose of XORing a register with itself? [duplicate]

...ad dependency on eax, so the execution time is the same" The processor actually does even better: it just executes a register rename internally, and doesn't even do anything at all with eax. – kquinn Sep 8 '09 at 22:16 ...
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Send POST data on redirect with JavaScript/jQuery? [duplicate]

Basically what I want to do is send POST data when I change the window.location , as if a user has submitted a form and it went to a new page. I need to do it this way because I need to pass along a hidden URL, and I can’t simply place it in the URL as a GET for cosmetic reasons. ...
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How to convert an Int to a String of a given length with leading zeros to align?

...this Q&A becomes the canonical compendium, scala> import java.text._ import java.text._ scala> NumberFormat.getIntegerInstance.asInstanceOf[DecimalFormat] res0: java.text.DecimalFormat = java.text.DecimalFormat@674dc scala> .applyPattern("0000000") scala> res0.format(123) res2: S...
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Count the number of commits on a Git branch

...e branch git rev-list --count HEAD ^<branch-name> This will count all commits ever made that are not on the branch-name as well. Examples git checkout master git checkout -b test <We do 3 commits> git rev-list --count HEAD ^master Result: 3 If your branch comes of a branch called...
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What would cause an algorithm to have O(log n) complexity?

...er dividing n in half i times we'll have a value that is at most 1. The smallest i for which this is guaranteed is roughly log2 n, so if we have an algorithm that divides by 2 until the number gets sufficiently small, then we can say that it terminates in O(log n) steps. An important detail is tha...
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Difference between author and committer in Git?

...ld find was using the environment variables to override the committer: GIT_COMMITTER_NAME='a' GIT_COMMITTER_EMAIL='a' git commit --author 'a <a>' How to get the committer and commit date of a given commit? Only author data shows by default on git log. To see the committer date you can eit...
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Difference between String#equals and String#contentEquals methods

...This way, you can implement the sense of "equal content" more freely. This allows you to make intelligent comparisons between a StringBuffer and a String, for example. And to say what exactly the difference is: String.contentEquals() can compare the contents of a String, a StringBuilder, a String...
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DropDownList in MVC 4 with Razor

...iew to cast it , like this: @Html.DropDownListFor(model => model.model_year, ViewBag.Years as List<SelectListItem>, "-- Select Year --") – Bashar Abu Shamaa Feb 26 '16 at 19:23 ...
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Cannot drop database because it is currently in use

...ame'} returns nothing. Yet it till complains. This doesn't seem to actually work. – Pxtl Mar 12 at 21:56 add a comment  |  ...
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jquery save json data object in cookie

...base64 (using atob). val = JSON.stringify(userData) val = btoa(val) write_cookie(val) share | improve this answer | follow | ...