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How do I byte-compile everything in my .emacs.d directory?
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C-u 0 M-x byte-recompile-directory
will compile all the .el files in the directory and in all...
Show current state of Jenkins build on GitHub repo
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Returning an array using C
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You can't return arrays from functions in C. You also can't (shouldn't) do this:
char *retur...
JPA: How to have one-to-many relation of the same Entity type
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Python List vs. Array - when to use?
...ray.array is also a reasonable way to represent a mutable string in Python 2.x (array('B', bytes)). However, Python 2.6+ and 3.x offer a mutable byte string as bytearray.
However, if you want to do math on a homogeneous array of numeric data, then you're much better off using NumPy, which can automa...
Difference between Big-O and Little-O Notation
...rue if you used little-o:
x² ∈ O(x²)
x² ∈ O(x² + x)
x² ∈ O(200 * x²)
The following are true for little-o:
x² ∈ o(x³)
x² ∈ o(x!)
ln(x) ∈ o(x)
Note that if f ∈ o(g), this implies f ∈ O(g). e.g. x² ∈ o(x³) so it is also true that x² ∈ O(x³), (again, think of ...
Generic List - moving an item within the list
...ially what the ObservableCollection does in it's own Move method.
UPDATE 2015-12-30: You can see the source code for the Move and MoveItem methods in corefx now for yourself without using Reflector/ILSpy since .NET is open source.
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How to clone git repository with specific revision/changeset?
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UPDATE 2 Since Git 2.5.0 the feature described below can be enabled on server side with config...
Keep only first n characters in a string?
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edited Apr 12 '14 at 11:37
andrewb
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