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What are the rules for calling the superclass constructor?
What are the C++ rules for calling the superclass constructor from a subclass one?
10 Answers
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How to limit the amount of concurrent async I/O operations?
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You can definitely do this in the latest versions of async for .NET, using .NET 4.5 Beta. The previous post from 'usr' points to a good article written by Stephen Toub, but the less announced news is that the async semaphore actually made it into the Beta release of .NET 4.5
If you ...
Postgresql aggregate array
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
SQL Server database backup restore on lower version
...ust to transfer database schema, you can use Extract Data-Tier Application for creating file and Deploy Data-Tier Application for deploying created database schema.
I've tried this process on different versions of SQL Server from SQL 2014 to SQL 2012 and from SQL 2014 to SQL 2008R2 and worked well....
LINQ - Full Outer Join
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Your solution works for primitive types, but doesn't seem to work for objects. In my case, FirstName is an domain object, while LastName is another domain object. When I union the two results, LINQ threw a NotSupportedException (Types in Union...
What's wrong with nullable columns in composite primary keys?
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Primary keys are for uniquely identifying rows. This is done by comparing all parts of a key to the input.
Per definition, NULL cannot be part of a successful comparison. Even a comparison to itself (NULL = NULL) will fail. This means a key...
Get underlying NSData from UIImage
... UIImagePNGRepresentation(image);
Depending if you want your data in PNG format or JPG format.
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How to configure Git post commit hook
...he repositories. Finally, this URL doesn’t require authentication even for secured Jenkins, because the server doesn’t directly use anything that the client is sending. It runs polling to verify that there is a change, before it actually starts a build.
As mentioned here, make sure to use th...
Undefined symbols for architecture armv7
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Common Causes
The common causes for "Undefined symbols for architecture armv7" are:
You import a header and do not link against the correct library. This is common, especially for headers for libraries like QuartzCore since it is not included in projects ...
Is it possible to implement dynamic getters/setters in JavaScript?
I am aware of how to create getters and setters for properties whose names one already knows, by doing something like this:
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