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Futures vs. Promises
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Future and Promise are the two separate sides of an asynchronous operation.
std::promise is used by the "producer/writer" of the asynchronous operation.
std::future is used by the "consumer/reader" of the asynchronous operation.
The reason it is separated into th...
How to get the name of a class without the package?
... is actually stripping the package information from the name, but this is hidden from you.
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Postgresql - change the size of a varchar column to lower length
...e SQL standard. If you don't care about multi-database compatibility, consider storing your data as TEXT and add a constraint to limits its length. Constraints you can change around without this table lock/rewrite problem, and they can do more integrity checking than just the weak length check.
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How to amend a commit without changing commit message (reusing the previous one)?
...age —message=“Work in progress (untested)”
– Sridhar Sarnobat
Dec 7 '17 at 1:30
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Rule-of-Three becomes Rule-of-Five with C++11?
...=(T&& other) as Philipp points out in his answer, if it has dynamically allocated members, or generally stores pointers. Just like you should have a copy-ctor, assignment operator and destructor if the points mentioned before apply.
Thoughts?
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Best practices around generating OAuth tokens?
.... With random number, we have to go to database to know if the token is valid. So we went back to encrypted BLOB again. This time, the token only contains encrypted value of the key and expiration. So we can detect invalid or expired tokens without going to the database.
Some implementation detail...
IntelliJ beginning of file keyboard shortcut
...ow and Command+DownArrow, it'll work like a normal text editor. I have no idea why that isn't the default in Intellij instead of the seemingly pointless "scroll one line" feature.
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D Programming Language in the real world? [closed]
...ly someone else can comment who's in this space, but there too I think the idea is that performance often really matters so you want a compiled-to-the-metal language. Services are often fairly small, self-contained processes, so interop with large amounts of legacy C++ code is not really necessary ...
How to convert a negative number to positive?
... you can use
import numpy as np
np.abs(-1.23)
>> 1.23
It will provide absolute values.
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Update an outdated branch against master in a Git repo
...ner overall results to later readers, in my opinion, but that is nothing aside from personal taste.
To rebase and keep the branch you would:
git checkout <branch> && git rebase <target>
In your case, check out the old branch, then
git rebase master
to get it rebuilt agai...