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Legality of COW std::string implementation in C++11

...ing that copy-on-write is not a viable way to implement a conforming std::string in C++11, but when it came up in discussion recently I found myself unable to directly support that statement. ...
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How are software license keys generated?

...t a matter of making up an algorithm for which CD keys (which could be any string) are easy to generate and easy to verify, but the ratio of valid-CD-keys to invalid-CD-keys is so small that randomly guessing CD keys is unlikely to get you a valid one. INCORRECT WAY TO DO IT: Starcraft and Half-li...
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Best way to store time (hh:mm) in a database

... line. ALWAYS consider all time zones. C# A DateTime renders nicely to a string in C#. The ToString(string Format) method is compact and easy to read. E.g. new TimeSpan(EventStart.Ticks - EventEnd.Ticks).ToString("h'h 'm'm 's's'") SQL server Also if you're reading your database seperate to y...
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Keep only first n characters in a string?

Is there a way in JavaScript to remove the end of a string? 7 Answers 7 ...
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ASP.NET MVC: Custom Validation by DataAnnotation

I have a Model with 4 properties which are of type string. I know you can validate the length of a single property by using the StringLength annotation. However I want to validate the length of the 4 properties combined. ...
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Why is using 'eval' a bad practice?

...a security vulnerability, and it has to do with the trustworthiness of the string it's given as input. If that string comes, in whole or in part, from the outside world, there's a possibility of a scripting attack on your program if you're not careful. But that's thge derangement of an outside attac...
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How to install latest version of git on CentOS 7.x/6.x

...the flowing command: yum --disablerepo=base,updates --enablerepo=rpmforge-extras install git If you already have git installed then use: yum --disablerepo=base,updates --enablerepo=rpmforge-extras update git Related question(s): Facing issues while upgrading git to latest version on CentOS 6...
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How can I find the last element in a List?

...on, how to address the last element of a List safely... Assuming List<string> myList = new List<string>(); Then //NOT safe on an empty list! string myString = myList[myList.Count -1]; //equivalent to the above line when Count is 0, bad index string otherString = myList[-1]; "coun...
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How do I split a string so I can access item x?

Using SQL Server, how do I split a string so I can access item x? 44 Answers 44 ...
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Changing the default header comment license in Xcode

...med IDETemplateMacros.plist Add a FILEHEADER value to the Root and set its string value with your copyright text like Copyright © 2017 ... Copy the file to one of the following locations For a single project and user <ProjectName>.xcodeproj/xcuserdata/[username].xcuserdatad/IDETemplateMacro...