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Why does the arrow (->) operator in C exist?
The dot ( . ) operator is used to access a member of a struct, while the arrow operator ( -> ) in C is used to access a member of a struct which is referenced by the pointer in question.
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Pointer to class data member “::*”
I came across this strange code snippet which compiles fine:
15 Answers
15
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Red black tree over avl tree
...p in guaranteed O(logN) time. However, there are following points of comparison between the two:
AVL trees are more rigidly balanced and hence provide faster look-ups. Thus for a look-up intensive task use an AVL tree.
For an insert intensive tasks, use a Red-Black tree.
AVL trees store the balanc...
Is there a difference between PhoneGap and Cordova commands?
...gap for the first time and just browsed through the docs. What confuses me is the fact that some docs are using the command "phonegap" and some "cordova".
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Real-world examples of recursion [closed]
What are real-world problems where a recursive approach is the natural solution besides depth-first search (DFS)?
55 Ans...
Python - When to use file vs open
...When opening a file, it's preferable
to use open() instead of invoking this
constructor directly. file is more
suited to type testing (for example,
writing "isinstance(f, file)").
Also, file() has been removed since Python 3.0.
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UIDevice uniqueIdentifier deprecated - What to do now?
It has just come to light that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and unavailable in iOS 7 and above. No alternative method or property appears to be available or forthcoming.
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What does threadsafe mean?
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Eric Lippert has a nice blog post entitled What is this thing you call "thread safe"? about the definition of thread safety as found of Wikipedia.
3 important things extracted from the links :
“A piece of code is thread-safe if it functions correctly during
simultaneous...
How to detect online/offline event cross-browser?
...ure, which they consider separate to a lack of network access, which again is different to internet access. The whole thing is a mess. Some browser vendors update the navigator.onLine flag when actual network access is lost, others don't.
From the spec:
Returns false if the user agent is
definitely...
Curly braces in string in PHP
What is the meaning of { } (curly braces) in string literals in PHP?
5 Answers
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