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How to correctly implement custom iterators and const_iterators?
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Choose type of iterator which fits your container: input, output, forward etc.
Use base iterator classes from standard library. For example, std::iterator with random_access_iterator_tag.These base classes define all type definitions required by STL and do other work.
To avoid code duplication iter...
What is normalized UTF-8 all about?
...for the NFKD and NFD. Thus NFKD(x)=NFD(NFKC(x)), and NFKC(x)=NFC(NFKD(x)), etc.
Conclusion
If in doubt, go with canonical normalization. Choose NFC or NFD based on the space/speed trade-off applicable, or based on what is required by something you are inter-operating with.
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What's the difference between SoftReference and WeakReference in Java?
...e cached
reflection information about a class, or a wrapper for an object, etc.
Anything that makes no sense to keep after the object it is associated
with is GC-ed. When the weak reference gets cleared, it gets enqueued in a
reference queue that your code polls somewhere, and it discards the
associ...
Is Fortran easier to optimize than C for heavy calculations?
...*2))
Moreover statements such as FORALL, PURE & ELEMENTAL procedures etc. further help to optimize code. Even pointers in Fortran arent as flexible as C because of this simple reason.
The upcoming Fortran standard (2008) has co-arrays which allows you to easily write parallel code. G95 (open ...
Version vs build in Xcode
...ne Simulator Version/Build numbers are the same way, as are iPhones, Macs, etc.
3.2: (7W367a)
4.0: (8A400)
4.1: (8B117)
4.2: (8C134)
4.3: (8H7)
Update: By request, here are the steps to create a script that runs each time you build your app in Xcode to read the Build number, increment it, and wr...
What is the purpose of mock objects?
...o happen during the test (e.g. which of its methods calls will be invoked, etc.) and the mock object knows how it is supposed to react (e.g. what return value to provide). The mock will indicate whether what really happens differs from what is supposed to happen. A custom mock object could be crea...
R and version control for the solo data analyst
...d on the same dataset; you are preparing a report that is updated monthly, etc)
As a soloist, I don't fork that much either. However, the time I have saved by having the option to rewind has single-handedly paid back my investment in learning a version control system many, many times. You say...
Fragment onCreateView and onActivityCreated called twice
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you can also use fragment.getClass().getName() if you want to remove the class variable and remove a parameter from the call
– Ben Sewards
Jul 25 '13 at 13:26
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How to use concerns in Rails 4
...ndable'. Technical grouping will mean 'ValidationMethods', 'FinderMethods' etc
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Are duplicate keys allowed in the definition of binary search trees?
... the count? What if the tree needs to rebalance that node to a lower level etc.?
– Andrew
Sep 16 at 1:01
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