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C# string reference type?

...iables pointing to the string. And because any operations with strings actually create a new object, we make our local copy to point to the new string. But the original test variable is not changed. The suggested solutions to put ref in the function declaration and in the invocation work because we...
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Using module 'subprocess' with timeout

...that contains command's merged stdout, stderr data. check_output raises CalledProcessError on non-zero exit status as specified in the question's text unlike proc.communicate() method. I've removed shell=True because it is often used unnecessarily. You can always add it back if cmd indeed requir...
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Select values from XML field in SQL Server 2008

...wered May 22 '09 at 18:39 LarsenalLarsenal 43.5k3939 gold badges136136 silver badges207207 bronze badges ...
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Python: Using .format() on a Unicode-escaped string

...gt; print s ≥ >>> print "{0}".format(s) Traceback (most recent call last): File "<stdin>", line 1, in <module> UnicodeEncodeError: 'ascii' codec can't encode character u'\u2265' in position 0: ordinal not in range(128) >>> print u"{0}".format(s) ≥ >>> ...
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differences between 2 JUnit Assert classes

...d junit.framework.Assert itself and your test class gained the ability to call the assert methods this way. Since version 4 of JUnit, the framework uses Annotations for marking tests. So you no longer need to extend TestCase. But that means, the assert methods aren't available. But you can make a s...
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What is N-Tier architecture?

...sentation, the application processing and the data management are logically separate processes. For example, an application that uses middleware to service data requests between a user and a database employs multi-tier architecture. The most widespread use of "multi-tier architecture...
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How can I define a composite primary key in SQL?

...(from that table). If a primary key consists of two or more columns it is called a composite primary key. It is defined as follows: CREATE TABLE voting ( QuestionID NUMERIC, MemberID NUMERIC, PRIMARY KEY (QuestionID, MemberID) ); The pair (QuestionID,MemberID) must then be unique for the ta...
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How do I parallelize a simple Python loop?

This is probably a trivial question, but how do I parallelize the following loop in python? 13 Answers ...
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In Maven 2, how do I know from which dependency comes a transitive dependency?

... This didn't work for me; all I got was errors about unsupported 'legacy' values. Running @David Crow's version (i.e. without the velocity flag) worked fine though. – Vlad Schnakovszki Feb 28 '17 at 13:51 ...
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How do I convert from stringstream to string in C++?

...g string object. 1) Returns a copy of the underlying string as if by calling rdbuf()->str(). 2) Replaces the contents of the underlying string as if by calling rdbuf()->str(new_str)... Notes The copy of the underlying string returned by str is a temporary object that will b...