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ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
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Ron Hitches in his excellent book Java NIO seems to offer what I thought could be a good answer to your question:
Operating systems perform I/O
operations on memory areas. These
memory areas, as far as the operating
system is concerned, are contiguous
sequenc...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
So the reason for typedef :ed primitive data types is to abstract the low-level representation and make it easier to comprehend ( uint64_t instead of long long type, which is 8 bytes).
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Why does Unicorn need to be deployed together with Nginx?
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Nginx
Unicorn
Refer to unicorn on github for more information.
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How does type Dynamic work and how to use it?
I heard that with Dynamic it is somehow possible to do dynamic typing in Scala. But I can't imagine how that might look like or how it works.
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Using printf with a non-null terminated string
Suppose you have a string which is NOT null terminated and you know its exact size, so how can you print that string with printf in C? I recall such a method but I can not find out now...
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Does the ternary operator exist in R?
As the question asks, is there a control sequence in R similar to C's ternary operator ? If so, how do you use it? Thanks!
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docker mounting volumes on host
...uccessfully been able to share folders between a docker container with volumes using
5 Answers
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How Python web frameworks, WSGI and CGI fit together
...luehost account where I can run Python scripts as CGI. I guess it's the simplest CGI, because to run I have to define the following in .htaccess :
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
I'm having a little trouble understanding the pass-by-reference properties of data.table . Some operations seem to 'break' the reference, and I'd like to understand exactly what's happening.
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In Firebase, is there a way to get the number of children of a node without loading all the node dat
... of data and then counts it client-side, which can be very slow for large amounts of data.
Firebase doesn't currently have a way to count children without loading data, but we do plan to add it.
For now, one solution would be to maintain a counter of the number of children and update it every time...