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What's the difference between std::move and std::forward
...irement, typically a function accepting a reference to an rvalue will invalidate it. When you see std::move, it indicates that the value of the object should not be used afterwards, but you can still assign a new value and continue using it.
std::forward has a single use case: to cast a templated f...
How to show git log history for a sub directory of a git repo?
... OS X
803fcc3 Initial Commit
# Show all changes (one additional commit besides in src/nvfs).
$ git log --oneline
d6f6b3b Changes for Mac OS X
96cbb79 gitignore
803fcc3 Initial Commit
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impro...
Parallel.ForEach vs Task.Run and Task.WhenAll
...op- With Parallel.ForEach, there is a Partitioner which gets created to avoid making more tasks than necessary. Task.Run will always make a single task per item (since you're doing this), but the Parallel class batches work so you create fewer tasks than total work items. This can provide signific...
How to prevent ReflectionTypeLoadException when calling Assembly.GetTypes()
...pe> GetLoadableTypes(this Assembly assembly)
{
// TODO: Argument validation
try
{
return assembly.GetTypes();
}
catch (ReflectionTypeLoadException e)
{
return e.Types.Where(t => t != null);
}
}
You may well wish to move the return statement out of ...
How to change the decimal separator of DecimalFormat from comma to dot/point?
...
Side note: NumberFormat.getNumberInstance() can run unusually slowly on some Android 7 devices. An alternative is String.format() which runs quickly. See stackoverflow.com/questions/2379221/java-currency-number-format
...
How to understand Locality Sensitive Hashing?
...//infolab.stanford.edu/~ullman/mmds/ch3a.pdf
Also I recommend the below slide:
http://www.cs.jhu.edu/%7Evandurme/papers/VanDurmeLallACL10-slides.pdf .
The example in the slide helps me a lot in understanding the hashing for cosine similarity.
I borrow two slides from Benjamin Van Durme & Ashwi...
How do I create a namespace package in Python?
... @clacke It doesn't work that way (but it has the same effect as if it did). It maintains a global list of all package namespaces created with that function, and watches sys.path. When sys.path changes it checks if that affects the __path__ of any namespace, and if it does then it updates those _...
How to draw a line in android
Can anybody tell how to draw a line in Android, perhaps with an example?
15 Answers
1...
Remove a folder from git tracking
...der/
Step 3. Push your changes to your git repo.
The folder will be considered "deleted" from Git's point of view (i.e. they are in past history, but not in the latest commit, and people pulling from this repo will get the files removed from their trees), but stay on your working directory becaus...
Check if a Postgres JSON array contains a string
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how to get the rows where food array inside json is non empty , for example if we can consider , their are JSON , where food array also empty ,can you help
– Bravo
Sep 14 '17 at 23:54
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