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__FILE__, __LINE__, and __FUNCTION__ usage in C++

...t in the mangled name. Since I'm not a compiler writer, it's not really my call. – Evan Teran Apr 5 '12 at 3:13 What c...
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How to test an SQL Update statement before running it?

... In addition to using a transaction as Imad has said (which should be mandatory anyway) you can also do a sanity check which rows are affected by running a select using the same WHERE clause as the UPDATE. So if you UPDATE is UPDATE foo SET bar = 42 WHERE col1 = 1 AN...
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Django - what is the difference between render(), render_to_response() and direct_to_template()?

...rand spanking new shortcut for render_to_response in 1.3 that will automatically use RequestContext that I will most definitely be using from now on. 2020 EDIT: It should be noted that render_to_response() was removed in Django 3.0 https://docs.djangoproject.com/en/1.8/topics/http/shortcuts/#ren...
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Input and output numpy arrays to h5py

...of the order of 500 MB. I read that using h5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I save it to an h5py file? Also, how do I read the same file and put it as a numpy array in a different code, as I need to do manipulations with the array? ...
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How to get controls in WPF to fill available space?

...sks each child for its desired size and then stacks them. The stack panel calls Measure() on each child, with an available size of Infinity and then uses the child's desired size. A Grid occupies all available space, however, it will set each child to their desired size and then center them in th...
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How does grep run so fast?

... Assuming your question regards GNU grep specifically. Here's a note from the author, Mike Haertel: GNU grep is fast because it AVOIDS LOOKING AT EVERY INPUT BYTE. GNU grep is fast because it EXECUTES VERY FEW INSTRUCTIONS FOR EACH BYTE that it does look at. ...
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Android emulator-5554 offline

...ick on it and click on end process tree. In eclipse, go to Window>Android Virtual Device Manager, click on the AVD you want to launch, click on start and uncheck "Launch From Snapshot" and then click on launch. That's it! It will take a while and it should resolve your problem. ...
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Why does Go have a “goto” statement

... In your example, why not just introduce a function small(x,z) to call instead? That way we don't have to think about what variables are accessible in the small: label. I suspect the reason is go still lacks certain types of inlining support in the compiler. – Thomas A...
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Call by name vs call by value in Scala, clarification needed

As I understand it, in Scala, a function may be called either 16 Answers 16 ...
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Linear Layout and weight in Android

I always read about this funny weight value in the Android documentations. Now I want to try it for the first time but it isn't working at all. ...