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What are the basic rules and idioms for operator overloading?

...ey. The canonical form of providing these is this: class X { value_type& operator[](index_type idx); const value_type& operator[](index_type idx) const; // ... }; Unless you do not want users of your class to be able to change data elements returned by operator[] (in which cas...
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How do you run a single test/spec file in RSpec?

...rspec path/to/spec/file.rb In your case I think as long as your ./spec/db_spec.rb file includes the appropriate helpers, it should work fine. If you're using an older version of rspec it is: spec path/to/spec/file.rb s...
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How to use ng-repeat for dictionaries in AngularJs?

...t;/span> </div> <div ng-if="!$first"> <img src="/some_image.jpg" alt="some img" title="some img" /> </div> <div ng-repeat-end> ====================== </div> Output would look similar to the following (depending on HTML styling): ==== User details ===...
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Does Java read integers in little endian or big endian?

... According to h30097.www3.hp.com/docs//base_doc/DOCUMENTATION/V51_HTML/MAN/… its part of the standard c library, yes – Egil Dec 12 '08 at 10:49 1 ...
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Hexadecimal To Decimal in Shell Script

... $ python -c 'print(int("FF", 16))' 255 with ruby: $ ruby -e 'p "FF".to_i(16)' 255 with node.js: $ nodejs <<< "console.log(parseInt('FF', 16))" 255 with rhino: $ rhino<<EOF print(parseInt('FF', 16)) EOF ... 255 with groovy: $ groovy -e 'println Integer.parseInt("FF",16)' ...
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Python: print a generator expression?

...an iterator, without the need to build an intermediate list: >>> _ = map(sys.stdout.write, (x for x in string.letters if x in (y for y in "BigMan on campus"))) acgimnopsuBM share | improv...
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iPad/iPhone hover problem causes the user to double click a link

... This has its flaws. If you click a link with target="_blank" it will open in the same window AND in a new window. – rybo111 Nov 19 '13 at 0:36 ...
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Adding devices to team provisioning profile

.../off but you can read more here: developer.apple.com/library/ios/qa/qa1814/_index.html – thattyson Nov 11 '15 at 0:13  |  show 3 more comments...
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What is the difference between C, C99, ANSI C and GNU C?

...ain (ISO 9899:2011). This version is called C11. Various new features like _Generic, _Static_assert and thread support were added to the language. The update had a lot of focus on multi-core, multi-processing and expression sequencing. From 2011-2017, this was "the C language". In 2017, C11 was rev...
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What are the downsides to using Dependency Injection? [closed]

...n ivory tower builder. Relevant Links http://thedailywtf.com/Articles/The_Inner-Platform_Effect.aspx http://www.joelonsoftware.com/articles/fog0000000018.html Probably the simplest form of dependency injection (don't laugh) is a parameter. The dependent code is dependent on data, and that data...