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Log4Net, how to add a custom field to my logging

I use the log4net.Appender.AdoNetAppender appender. My log4net table are the following fields [Date],[Thread],[Level],[Logger],[Message],[Exception] ...
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How to avoid annoying error “declared and not used”

...s it easier to read code written by other people (you are always sure that all declared variables will be used), and avoid some possible dead code. But, if you really want to skip this error, you can use the blank identifier (_) : package main import ( "fmt" // imported and not used: "fmt" ) ...
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What is your single most favorite command-line trick using Bash? [closed]

We all know how to use <ctrl>-R to reverse search through history, but did you know you can use <ctrl>-S to forward search if you set stty stop "" ? Also, have you ever tried running bind -p to see all of your keyboard shortcuts listed? There are over 455 on Mac OS X by default. ...
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Literal suffix for byte in .NET?

...e var, you can always cast the byte as in var y = (byte) 5 Although not really related, in C#7, a new binary prefix was introduced 0b, which states the number is in binary format. Still there is no suffix to make it a byte though, example: var b = 0b1010_1011_1100_1101_1110_1111; //int ...
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Cleaner way to update nested structures

...scalaz.TreeLoc). It turns out that the structure of the zipper is automatically derivable from the original data structure, in a manner that resembles symbolic differentiation of an algebraic expression. But how does this help you with your Scala case classes? Well, Lukas Rytz recently prototyped a...
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Best way to replace multiple characters in a string?

... Replacing two characters I timed all the methods in the current answers along with one extra. With an input string of abc&def#ghi and replacing & -> \& and # -> \#, the fastest way was to chain together the replacements like this: text.rep...
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Is it better to use std::memcpy() or std::copy() in terms to performance?

...y. I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating between the m...
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How to implement the factory method pattern in C++ correctly

... First of all, there are cases when object construction is a task complex enough to justify its extraction to another class. I believe this point is incorrect. The complexity doesn't really matter. The relevance is what does. I...
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What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?

...ew ObjC literals were discussed in multiple WWDC 2012 sessions. I intentionally didn't remove the the filenames and the time of each slide so you can find them for yourself if you feel like. They are essentially the same thing as stated in this post, but there are also a few new things that I'll me...
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Making a WinForms TextBox behave like your browser's address bar

... First of all, thanks for answers! 9 total answers. Thank you. Bad news: all of the answers had some quirks or didn't work quite right (or at all). I've added a comment to each of your posts. Good news: I've found a way to make it wo...