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Java's Interface and Haskell's type class: differences and similarities?

...d say that an interface is kind of like a type class SomeInterface t where all of the values have the type t -> whatever (where whatever does not contain t). This is because with the kind of inheritance relationship in Java and similar languages, the method called depends on the type of object th...
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Xcode doesn't show the line that causes a crash

Every time my app crashes Xcode highlights the UIApicationMain() call in the main() function as the line that caused the crash. In some cases that used to be normal (segmentation fault for example) but the crash I am trying to deal with is a simple SIGABRT with detailed information logged in the con...
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docker mounting volumes on host

...independent of the container's life cycle. Docker therefore never automatically delete volumes when you remove a container, nor will it "garbage collect" volumes that are no longer referenced by a container." One of these statements must be wrong. – mc0e May 6...
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Entity Framework 5 Updating a Record

...y Framework 5 in an ASP.NET MVC3 environment, but so far none of them tick all of the boxes I need. I'll explain why. 7 Ans...
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How can I view the source code for a function?

...a.frame" x="Raster", y="Extent" x="Raster", y="matrix" x="Raster", y="SpatialLines" x="Raster", y="SpatialPoints" x="Raster", y="SpatialPolygons" x="Raster", y="vector" To see the source code for one of these methods the entire signature must be supplied, e.g. getMethod("extract" , signature = c(...
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How do I clone into a non-empty directory?

... will set the upstream branch for you, if that is what you want, and it usually is. share | improve this answer | follow | ...
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Convert sqlalchemy row object to python dict

...of a SQLAlchemy object, like the following:: for u in session.query(User).all(): print u.__dict__ share | improve this answer | follow | ...
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How to stop line breaking in vim

...| edited Feb 17 '10 at 11:32 answered Feb 17 '10 at 11:07 B...
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How to override the [] operator in Python?

...rwise this will happen: >>> myobj[5] = 1 Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: MyClass instance has no attribute '__setitem__' share | ...
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“Unable to find remote helper for 'https'” during git clone

... these steps worked for me. CentOS 5.8 32 bit ;git version 1.8.0 – Vikram Dec 4 '12 at 21:10 1 ...