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Why do objects of the same class have access to each other's private data?

...tatic, compile-time feature. I think it is rather obvious that it is not really possible to implement any meaningful per-object access control at compile time. Only per-class control can be implemented that way. Some hints of per-object control are present in protected access specification, which i...
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An App ID with Identifier '' is not available. Please enter a different string

... Team Provision Profile Managed by Xcode are now updated by Xcode automatically and correctly. They are not even listed at the Developer Portal, but generated on-the-flight. However, the solution proposed below will still work. I've switched to using the automatic provisioning profiles. tl;dr Re...
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Group vs role (Any real difference?)

...effectively inherits those permissions when he acts under that role. Typically your group membership remains during the duration of your login. A role, on the other hand, can be activated according to specific conditions. If your current role is 'medical-staff' you might be able to see some of the ...
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TextView Marquee not working [duplicate]

... android:marqueeRepeatLimit="marquee_forever" android:scrollHorizontally="true" android:paddingLeft="15dip" android:paddingRight="15dip" android:focusable="true" android:focusableInTouchMode="true" android:freezesText="true"> Edit (on behalf of Adil Hussain): tex...
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Why functional languages? [closed]

...onal languages. In some cases, this can make code more readable. Traditionally, one of the big disadvantages of functional programming was also the lack of side effects. It's very difficult to write useful software without IO, but IO is hard to implement without side effects in functions. So most p...
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Why are mutable structs “evil”?

... any other copies which might be around. If your struct is immutable then all automatic copies resulting from being passed by value will be the same. If you want to change it you have to consciously do it by creating a new instance of the struct with the modified data. (not a copy) ...
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Why / when would it be appropriate to override ToString?

...way? Yes. But by using ToString you are using a method that is common to all objects and thus other classes know about this method. For instance, whenever the .NET framework wants to convert an object to a string representation, ToString is a prime candidate (there are others, if you want to provi...
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Purpose of Django setting ‘SECRET_KEY’

... Why didn't they call it a salt then? ;) – datenwolf Jun 15 '13 at 18:00 30 ...
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Reserved keywords in JavaScript

... Here is my poem, which includes all of the reserved keywords in JavaScript, and is dedicated to those who remain honest in the moment, and not just try to score: Let this long package float, Goto private class if short. While protected with debugger case,...
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What is this Javascript “require”?

...es are a way to split an application into separate files instead of having all of your application in one file. This concept is also present in other languages with minor differences in syntax and behavior, like C's include, Python's import, and so on. One big difference between Node.js modules and...