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Abusing the algebra of algebraic data types - why does this work?
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140
Disclaimer: A lot of this doesn't really work quite right when you account for ⊥, so I'm going...
Can someone explain __all__ in Python?
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edited Mar 8 '17 at 15:50
answered Sep 4 '08 at 21:30
Jim...
How to declare global variables in Android?
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I wrote this answer back in '09 when Android was relatively new, and there were many not well established areas in Android development. I have added a long addendum at the bottom of this post, addressing some criticism, and detailing a philosophical disa...
Creating a singleton in Python
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+50
Use a Metaclass
I would recommend Method #2, but you're better off using a metaclass than a base class. Here is a sample implementatio...
REST vs JSON-RPC? [closed]
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+50
The fundamental problem with RPC is coupling. RPC clients become tightly coupled to service implementation in several ways and it beco...
How do cache lines work?
...recast a memory access (and prefetch it), the retrieval process can take ~90 nanoseconds, or ~250 clock cycles (from the CPU knowing the address to the CPU receiving data).
By contrast, a hit in L1 cache has a load-use latency of 3 or 4 cycles, and a store-reload has a store-forwarding latency of 4...
What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?
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answered Jan 7 '09 at 8:42
coobirdcoobird
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What is the purpose of a stack? Why do we need it?
...d this question so much I made it the subject of my blog on November 18th 2011. Thanks for the great question!
I've always wondered: what is the purpose of the stack?
I assume you mean the evaluation stack of the MSIL language, and not the actual per-thread stack at runtime.
Why is there...
Difference between
...t<? super T> dest, List<? extends T> src) {
for (int i = 0; i < src.size(); i++)
dest.set(i, src.get(i));
}
}
Also see
How can I add to List<? extends Number> data structures?
share...