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How to count the number of set bits in a 32-bit integer?
... throw at it.
References:
https://graphics.stanford.edu/~seander/bithacks.html
https://en.wikipedia.org/wiki/Hamming_weight
http://gurmeet.net/puzzles/fast-bit-counting-routines/
http://aggregate.ee.engr.uky.edu/MAGIC/#Population%20Count%20(Ones%20Count)
How this SWAR bithack works:
i = i - ((i &...
How are people unit testing with Entity Framework 6, should you bother?
...nal Repository pattern from Fowler (martinfowler.com/eaaCatalog/repository.html) or DDD (dddcommunity.org/resources/ddd_terms). Don't believe naysayers without fully understanding the original concept. What they really criticize is a recent misuse of the pattern, not the pattern itself (although the...
What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...nstead for real indepth explanation 2ality.com/2012/01/object-plus-object.html
– jahav
Feb 14 '17 at 13:41
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How are virtual functions and vtable implemented?
...edia.org/wiki/Virtual_table
http://www.codesourcery.com/public/cxx-abi/abi.html#vtable
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What are the best practices for SQLite on Android?
...id support can be found at ormlite.sourceforge.net/sqlite_java_android_orm.html. There are sample projects, documentation, and jars.
– Gray
Oct 20 '10 at 15:37
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How to merge YAML arrays?
...en an array of arrays
Ruby flatten ;; http://ruby-doc.org/core-2.2.2/Array.html#method-i-flatten
Python flatten ;; https://softwareengineering.stackexchange.com/a/254676/23884
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How does data binding work in AngularJS?
...all changes stabilize.
In normal development, data-binding syntax in the HTML tells the AngularJS compiler to create the watches for you and controller methods are run inside $apply already. So to the application developer it is all transparent.
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How to make my custom type to work with “range-based for loops”?
... This needs to be updated for open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1442.
– T.C.
Jul 16 '15 at 5:46
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What is private bytes, virtual bytes, working set?
...ons of memory allocations.
http://www.softwareverify.com/cpp/memory/index.html
Disclaimer: I designed Memory Validator.
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How expensive is RTTI?
...nium C++ ABI, documented at http://www.codesourcery.com/public/cxx-abi/abi.html. The names are horribly confusing: the name refers to the original development architecture, though the ABI specification works on lots of architectures including i686/x86_64. Comments in GCC's internal source and STL co...