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Are HLists nothing more than a convoluted way of writing tuples?
... aren't typically that interesting (at least, they aren't unless they type cast internally). shapeless provides a form of polymorphic function value which allows the compiler to select type-specific cases in exactly the way you're doubtful about. For instance,
// size is a function from values of a...
App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
计算器这个看似简单的应用，当你一旦着手去制作时，就会发现写出来的程序漏洞百出，那些在人类看来理所当然的逻辑，对于计算机来说，却是浑然不知，一定要将每个细节都照顾到，程序才能如你所愿地运行，否则就会出现...
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How to find the kth smallest element in the union of two sorted arrays?
...; issorted(firstb, lastb, less));
for ( ; ; ) {
assert(n < static_cast<size_t>((lasta - firsta) + (lastb - firstb)));
if (firsta == lasta) return *(firstb + n);
if (firstb == lastb) return *(firsta + n);
size_t mida = (lasta - firsta) / 2;
size_t midb = (lastb - first...
Performance optimization strategies of last resort [closed]
... clear on a load op. Find places where floats, vectors, and ints are being cast to one another and eliminate them. Use __restrict liberally to promise the compiler about aliasing.
Microcoded operations. Most processors have some operations that cannot be pipelined, but instead run a tiny subroutine ...
What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...be moved from
im: has identity and can be moved from (e.g. the result of casting an lvalue to a rvalue reference)
Im: does not have identity and can be moved from.
The fourth possibility, IM, (doesn’t have identity and cannot be moved) is not
useful in C++ (or, I think) in any other l...
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
... blame the compiler for it's complacency though. While gcc does have a -Wcast-align option, it isn't enabled by default nor with -Wall or -Wextra. This is apparently due to gcc developers considering this type of code to be a brain-dead "abomination" unworthy of addressing -- understandable disda...
Java 8: Lambda-Streams, Filter by Method with Exception
...n method.get();
} catch (AdapterException e) {
throw x.cast(e.getCause());
}
}
@Override
public <A, R> R collect(Collector<T, A, R> collector) throws X {
return unmaskException(() -> delegate.collect(collector));
}
}
Then you coul...
How to get first and last day of previous month (with timestamp) in SQL Server
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Not thinking CONVERT is the best solution if CAST is available
– Kennah
Jun 28 '19 at 19:29
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What are bitwise shift (bit-shift) operators and how do they work?
...
Isn't it easier to cast your original, say 32bit cl_uint, as something like cl_uchar4 and access the byte you want directly as *.s2?
– David H Parry
Oct 13 '19 at 18:12
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