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How to read a text file reversely with iterator in C#

I need to process a large file, around 400K lines and 200 M. But sometimes I have to process from bottom up. How can I use iterator (yield return) here? Basically I don't like to load everything in memory. I know it is more efficient to use iterator in .NET. ...
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Entity Framework 4 - AddObject vs Attach

I have been working with Entity Framework 4 recently, and am slightly confused as to when to use ObjectSet.Attach , and ObjectSet.AddObject . ...
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Any gotchas using unicode_literals in Python 2.6?

...f-8 encoded string (not unicode) since it did not import unicode_literals, and one.name is an unicode string. When you mix both, python tries to decode the encoded string (assuming it's ascii) and convert it to unicode and fails. It would work if you did print name + two.name.decode('utf-8'). The s...
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'ssh-keygen' is not recognized as an internal or external command

...f Git For Windows, whose releases include PortableGit-2.4.3.1-2nd-release-candidate-64-bit.7z c:\path\to\PortableGit-2.4.3.1-2nd-release-candidate-64-bit\usr\bin\ssh-keygen.exe That means the %PATH% must include c:\path\to\PortableGit-2.4.3.1-2nd-release-candidate-64-bit\usr\bin (without the ssh-...
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Check folder size in Bash

I'm trying to write a script that will calculate a directory size and if the size is less than 10GB, and greater then 2GB do some action. Where do I need to mention my folder name? ...
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Disadvantages of Test Driven Development? [closed]

... Several downsides (and I'm not claiming there are no benefits - especially when writing the foundation of a project - it'd save a lot of time at the end): Big time investment. For the simple case you lose about 20% of the actual implementatio...
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R object identification

... often ending up with a function producing output for which I don't understand the output data type. I'm expecting a list and it ends up being a list of lists or a data frame or something else. What's a good method or workflow for figuring out the output data type when first using a function? ...
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What is the difference between :focus and :active?

What is the difference between the :focus and :active pseudo-classes? 7 Answers 7 ...
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Gcc error: gcc: error trying to exec 'cc1': execvp: No such file or directory

... 12. Now I am getting an error. I have recently been doing some .so builds and installed Clang not to long ago, but have successfully compiled since both of those events, so not sure what has changed. I used the GUI Software Manager to remove and then install gcc again, but the results are the same:...
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Hidden Features of JavaScript? [closed]

...ay -- it's just an object. So you can't do join(), pop(), push(), slice() and so forth. (You can convert it to a real array if you want: "var argArray = Array.prototype.slice.call(arguments);" ) – Jacob Mattison Jan 26 '09 at 21:37 ...