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How to implement classic sorting algorithms in modern C++?

The std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort....
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Testing Abstract Classes

...tract function abstractMethod(); } class AbstractClassTest extends PHPUnit_Framework_TestCase { public function testConcreteMethod() { $stub = $this->getMockForAbstractClass('AbstractClass'); $stub->expects($this->any()) ->method('abstractMethod') ...
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Cross-platform way of getting temp directory in Python

...) and os.getenv('TMPDIR') return a value such as '/var/folders/nj/269977hs0_96bttwj2gs_jhhp48z54/T'; it is one that I do not always want. share | improve this answer | follow...
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Is it better to reuse a StringBuilder in a loop?

...-time ); } } Results: 25265 17969 Note that this is with JRE 1.6.0_07. Based on Jon Skeet's ideas in the edit, here's version 2. Same results though. public class ScratchPad { static String a; public static void main( String[] args ) throws Exception { long time = Syst...
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ArrayList vs List in C#

... @Ant_222, that blog was written nearly 15 years ago. I think the evidence over the last decade + has shown that generics are not harmful. :) – Scott Adams Jun 16 '19 at 17:46 ...
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What's the difference between MyISAM and InnoDB? [duplicate]

...e differences between InnoDB and MyISAM. But yes, InnoDB behavior with AUTO_INCREMENT is a difference, and one that we have to account for if we are going to use AUTO_INCREMENT, and if we are dependent on some behavior that isn't supported. This difference could be considered a disadvantage; perhaps...
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How do I include related model fields using Django Rest Framework?

...ializers.ModelSerializer): teachers = TeacherSerializer(source='teacher_set') class Meta: model = Classroom Note that we use the source argument on the serializer field to specify the attribute to use as the source of the field. We could drop the source argument by instead making...
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Naming of ID columns in database tables

... ID is a SQL Antipattern. See http://www.amazon.com/s/ref=nb_sb_ss_i_1_5?url=search-alias%3Dstripbooks&field-keywords=sql+antipatterns&sprefix=sql+a If you have many tables with ID as the id you are making reporting that much more difficult. It obscures meaning and makes comp...
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How To Accept a File POST

... } string root = System.Web.HttpContext.Current.Server.MapPath("~/App_Data/uploads"); var provider = new MultipartFormDataStreamProvider(root); var task = request.Content.ReadAsMultipartAsync(provider). ContinueWith<HttpResponseMessage>(o => { string...
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When should I use semicolons in SQL Server?

...ECT 1/0 AS CauseAnException COMMIT END TRY BEGIN CATCH SELECT ERROR_MESSAGE() THROW END CATCH BEGIN TRY BEGIN TRAN SELECT 1/0 AS CauseAnException; COMMIT END TRY BEGIN CATCH SELECT ERROR_MESSAGE(); THROW END CATCH ...