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What is “vectorization”?
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235
Many CPUs have "vector" or "SIMD" instruction sets which apply the same operation simultaneousl...
Breaking out of a nested loop
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answered Nov 28 '08 at 0:03
Marc Gravell♦Marc Gravell
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insert a NOT NULL column to an existing table
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Pavel MorshenyukPavel Morshenyuk
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Is there a standard for storing normalized phone numbers in a database?
...de 0 has a known format for the rest of the number, but for country code 5432 you might need to examine the area code before you understand the rest of the number.
You may also want to handle vanity numbers such as (800) Lucky-Guy, which requires recognizing that, if it's a US number, there's one t...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
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1183
I think you're looking for dispatch_after(). It requires your block to accept no parameters, bu...
What is stack unwinding?
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153
Stack unwinding is usually talked about in connection with exception handling. Here's an example...
What is the best way to convert an array to a hash in Ruby
...y keys or values!
Building on @John Topley's popular answer, let's try:
a3 = [ ['apple', 1], ['banana', 2], [['orange','seedless'], 3] ]
h3 = Hash[*a3.flatten]
This throws an error:
ArgumentError: odd number of arguments for Hash
from (irb):10:in `[]'
from (irb):10
The constru...
Rspec: “array.should == another_array” but without concern for order
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answered Jun 5 '10 at 3:08
x1a4x1a4
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How to save a list as numpy array in python?
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163
First of all, I'd recommend you to go through NumPy's Quickstart tutorial, which will probably ...
When should the volatile keyword be used in C#?
...s about observation of ordering. If you want more details,
read sections 3.10 and 10.5.3 of the C# 4.0 specification.
Frankly, I discourage you from ever making a volatile field. Volatile
fields are a sign that you are doing something downright crazy: you're
attempting to read and write t...