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Setting variable to NULL after free
...little bit pointless if it is "obvious" that the pointer isn't accessed anymore after being freed, so this style is more appropriate for member data and global variables. Even for local variables, it may be a good approach if the function continues after the memory is released.
To complete the styl...
How to declare global variables in Android?
...subclassing Application. Read it at your own risk.
ORIGINAL ANSWER:
The more general problem you are encountering is how to save state across several Activities and all parts of your application. A static variable (for instance, a singleton) is a common Java way of achieving this. I have found ho...
Why is Multiple Inheritance not allowed in Java or C#?
...uch complexity to the languages while providing too little benefit.
For a more fun and in-depth read, there are some articles available on the web with interviews of some of the language designers. For example, for .NET, Chris Brumme (who worked at MS on the CLR) has explained the reasons why they ...
What was the strangest coding standard rule that you were forced to follow? [closed]
...: if (!Initialize()) { RetVal=ERR_BADINIT; goto ReturnPoint; } (lots more code) ReturnPoint: return RetVal; } Problem solved! ;)
– Marc Bernier
Oct 20 '08 at 16:38
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Unmarshaling nested JSON objects
... map of sub-tags OR Text) AND an unordered map of attributes. JSON is much more like a Go struct. So mapping JSON to structs is much simpler: Just model the struct after your JSON.
– Volker
Aug 6 '15 at 5:04
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Why not be dependently typed?
...oming a dependently-typed language". The implication seems to be that with more and more language extensions, Haskell is drifting in that general direction, but isn't there yet.
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What components are MVC in JSF MVC framework?
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+1 Completely agree with both philosophy,generally it is more the case with big arch. view in real time projects.
– Jigar Joshi
Feb 24 '11 at 12:55
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...n tries for most purposes.
Your keys need not have any special structure.
More space-efficient than the obvious linked trie structure (see comments below)
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What are the pros and cons of performing calculations in sql vs. in your application
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Looping implicates more-or-less "row-at-a-time" processing. And that means 2* network latency plus four context switches round trip. Yes: that is expensive. A "native" DBMS operation does all the hard work to minimise disk-I/O's (system calls) ...
Apache Spark: The number of cores vs. the number of executors
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To hopefully make all of this a little more concrete, here’s a worked example of configuring a Spark app to use as much of the cluster as
possible: Imagine a cluster with six nodes running NodeManagers, each
equipped with 16 cores and 64GB of memory. The NodeMan...