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Why doesn't delete set the pointer to NULL?

I always wondered why automatic setting of the pointer to NULL after delete is not part of the standard. If this gets taken care of then many of the crashes due to an invalid pointer would not occur. But having said that I can think of couple of reasons why the standard would have restricted this:...
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Associative arrays in Shell scripts

We required a script that simulates Associative arrays or Map like data structure for Shell Scripting, any body? 17 Answers...
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How to len(generator()) [duplicate]

Python generators are very useful. They have advantages over functions that return lists. However, you could len(list_returning_function()) . Is there a way to len(generator_function()) ? ...
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Click outside menu to close in jquery

So I have a drop-down menu that shows on a click, as per business requirements. The menu becomes hidden again after you mouse away from it. ...
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Good open source django project for learning [closed]

Can anyone suggest a good open source django project to learn django development. 7 Answers ...
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What does $$ (dollar dollar or double dollar) mean in PHP?

Example is a variable declaration within a function: 7 Answers 7 ...
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What is the use of “ref” for reference-type variables in C#?

I understand that if I pass a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one. ...
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how to get the cookies from a php curl into a variable

So some guy at some other company thought it would be awesome if instead of using soap or xml-rpc or rest or any other reasonable communication protocol he just embedded all of his response as cookies in the header. ...
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Managing relationships in Laravel, adhering to the repository pattern

While creating an app in Laravel 4 after reading T. Otwell's book on good design patterns in Laravel I found myself creating repositories for every table on the application. ...
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Are loops really faster in reverse?

I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why! ...