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What's the difference between `1L` and `1`?

... So, @James and @Brian em>xm>plained what 3L means. But why would you use it? Most of the time it makes no difference - but sometimes you can use it to get your code to run faster and consume less memory. A double ("numeric") vector uses 8 bytes per e...
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Some questions about Automatic Reference Counting in iOS5 SDK

...ect retain] and [myObject release] statements from my code? Yes, but m>Xm>Code 4.2 includes a new "Migrate to Objective-C ARC" tool (in the Edit->Refactor menu), which does that for you. Calling dealloc is a different story. As mentioned in the comments the clang reference states that you shoul...
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Sort a list from another list IDs

... docs = docs.OrderBy(d => docsIds.Indem>xm>Of(d.Id)).ToList(); share | improve this answer | follow | ...
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How do I force detach Screen from another SSH session?

...detaches the already-running screen session, and screen -r reattaches the em>xm>isting session. By running screen -d -r, you force screen to detach it and then resume the session. If you use the capital -D -RR, I quote the man page because it's too good to pass up. Attach here and now. Whatever t...
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How to Convert all strings in List to lower case using LINQ?

...yList.ConvertAll(d => d.ToLower()); Not too much different than your em>xm>ample code. ForEach loops the original list whereas ConvertAll creates a new one which you need to reassign. share | impro...
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Apache: “AuthType not set!” 500 Error

...ng up a local server for a project and when I try to request localhost/indem>xm>.html, I get a 500 error and I see this in the error log: ...
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What does @@variable mean in Ruby?

... A variable prefim>xm>ed with @ is an instance variable, while one prefim>xm>ed with @@ is a class variable. Check out the following em>xm>ample; its output is in the comments at the end of the puts lines: class Test @@shared = 1 def value @@sh...
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What is the meaning of “__attribute__((packed, aligned(4))) ”

...ss bytes between the end of the last data structure and the start of the nem>xm>t, which is data structure padding. gcc provides functionality to disable structure padding. i.e to avoid these meaningless bytes in some cases. Consider the following structure: typedef struct { char Data1; in...
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Fastest way(s) to move the cursor on a terminal command line?

...Since this hasn't been closed yet, here are a few more options. Use Ctrl+m>xm> followed by Ctrl+e to open the current line in the editor specified by $FCEDIT or $EDITOR or emacs (tried in that order). If you ran the command earlier, hit Ctrl+r for a reverse history search and type option25 (in this ca...
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How do I make my GUI behave well when Windows font scaling is greater than 100%

...ere are problems in a VCL application, every time something has been set pim>xm>elwise. 4 Answers ...