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prototype based vs. class based inheritance
...gy issues here, mostly built around someone (not you) trying to make their idea sound like The Best.
All object oriented languages need to be able to deal with several concepts:
encapsulation of data along with associated operations on the data, variously known as data members and member function...
When is an interface with a default method initialized?
...tends J {
int k = Test.out("k", 5);
}
class Test {
public static void main(String[] args) {
System.out.println(J.i);
System.out.println(K.j);
}
static int out(String s, int i) {
System.out.println(s + "=" + i);
return i;
}
}
Its expected output i...
How do I choose grid and block dimensions for CUDA kernels?
This is a question about how to determine the CUDA grid, block and thread sizes. This is an additional question to the one posted here .
...
Apache Spark: map vs mapPartitions?
...ons)? Does it move data between nodes? I've been using mapPartitions to avoid moving data between nodes, but wasn't sure if flapMap would do so.
– Nicholas White
Jan 18 '14 at 10:52
...
Understanding the Event Loop
...run something asynchronously is by invoking one of the async functions provided by the node core library. Even if you are using an npm package that defines it's own API, in order to yield the event loop, eventually that npm package's code will call one of node core's async functions and that's when ...
C++ Dynamic Shared Library on Linux
...virtual otherwise linker will try to perform static linkage */
virtual void DoSomething();
private:
int x;
};
#endif
myclass.cc
#include "myclass.h"
#include <iostream>
using namespace std;
extern "C" MyClass* create_object()
{
return new MyClass;
}
extern "C" void destroy_object...
std::vector performance regression when enabling C++11
...me optimization (I also pass the -flto flag to gcc 4.7.2), the results are identical:
(I am compiling your original code, with container.push_back(Item());)
$ g++ -std=c++11 -O3 -flto regr.cpp && perf stat -r 10 ./a.out
Performance counter stats for './a.out' (10 runs):
35.426...
Java 8 Streams: multiple filters vs. complex condition
...le filter invocation using a lambda expression with &&.
But, as said, this kind of overhead will be eliminated by the HotSpot optimizer and is negligible.
In theory, two filters could be easier parallelized than a single filter but that’s only relevant for rather computational intense ta...
ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
...at any
time. Arrays are objects in Java, and
the way data is stored inside that
object could vary from one JVM
implementation to another.
For this reason, the notion of a
direct buffer was introduced. Direct
buffers are intended for interaction
with channels and native I/O routine...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
...anteed to exist. It's an optional typedef that the implementation must provide iff it has an unsigned integer type of exactly 32-bits. Some have a 9-bit bytes for example, so they don't have a uint32_t.
uint_fast32_t states your intent clearly: it's a type of at least 32 bits which is the best from ...