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Practical example where Tuple can be used in .Net 4.0?
...or the last 15 years. That's how expression bodied members were added, and now value tuples. Record-style classes narrowly missed the cut back in August (9 months before this comment) for this version of C# 7, and are probably coming out in C# 8. Also note that value tuples offer value equality wher...
What's “requestCode” used for on PendingIntent?
... No, It is not necessary for different intents. And I don't know why the documentation doesn't say anything about it, but I learnt this when setting repeating alarms and also when using the same intent.
– Minhaj Arfin
Feb 3 '14 at 12:46
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How to declare std::unique_ptr and what is the use of it?
...int> p = make_unique<int>(42);
Which is both clearer and safer. Now concerning this doubt of yours:
What is also not clear to me, is how pointers, declared in this way will be different from the pointers declared in a "normal" way.
Smart pointers are supposed to model object ownersh...
When does invoking a member function on a null instance result in undefined behavior?
...d a weak "use a dereferenced null pointer, get undefined behavior" view.
Now we consider the question.
Yes, (a) results in undefined behavior. In fact, if this is null then regardless of the contents of the function the result is undefined.
This follows from §5.2.5/3:
If E1 has the type ...
How do I replace NA values with zeros in an R dataframe?
...u post it and not worked. Because this I posted the question. But I tried know and worked perfectly. I think I was doing something wrong.
– Renato Dinhani
Nov 17 '11 at 14:08
12
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Git: cannot checkout branch - error: pathspec '…' did not match any file(s) known to git
...ave found & upvoted this answer (which is completely trivial and well-known to any git user with more than two days experience) doesn't mean the OP should accept it.
– Michael Johnston
Jun 15 '16 at 19:11
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What Does 'Then' Really Mean in CasperJS
...ch for explaining this. This behavior has been killing me for over a year now as my Casper functional tests for an Ajax-heavy application fail randomly all the time.
– brettjonesdev
Apr 2 '15 at 23:29
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Inline elements shifting when made bold on hover
...r over the links. You see, I created a bold hover state for the links, and now the menu links shift because of the bold size difference.
...
Insert/Update Many to Many Entity Framework . How do I do it?
... joining table. That is the correct behaviour and that's what you expect.
Now, when doing inserts or updates, try to think in terms of objects. E.g. if you want to insert a class with two students, create the Class object, the Student objects, add the students to the class Students collection add t...
best practice to generate random token for forgot password
...ector,
'validator' => bin2hex($token)
]);
$expires = new DateTime('NOW');
$expires->add(new DateInterval('PT01H')); // 1 hour
$stmt = $pdo->prepare("INSERT INTO account_recovery (userid, selector, token, expires) VALUES (:userid, :selector, :token, :expires);");
$stmt->execute([
...