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What is the difference between memmove and memcpy?
What is the difference between memmove and memcpy ? Which one do you usually use and how?
9 Answers
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What is more efficient? Using pow to square or just multiply it with itself?
What of these two methods is in C more efficient? And how about:
7 Answers
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Is there a built-in method to compare collections?
... to change as the dictionary is modified as well. I suggest you read up on what a Dictionary is and what it isn't.
– Matti Virkkunen
Mar 9 '11 at 11:05
5
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What does an Asterisk (*) do in a CSS selector?
I found this CSS code and I ran it to see what it does and it outlined EVERY element on the page,
5 Answers
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What is the best way to concatenate two vectors?
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This is precisely what the member function std::vector::insert is for
std::vector<int> AB = A;
AB.insert(AB.end(), B.begin(), B.end());
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What's the best way to retry an AJAX request on failure using jQuery?
...n fail
$.ajax({
type : 'GET',
url : 'http://www.whatever123.gov',
timeout : 2000,
retries : 3, // <-------- Optional
retryInterval : 2000 // <-------- Optional
})
// Problem: "fail" will only be called once, and not for each ...
What's better at freeing memory with PHP: unset() or $var = null
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It was mentioned in the unset manual's page in 2009:
unset() does just what its name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the...
How to call an external command?
... recommend using them directly.
The subprocess module should probably be what you use.
Finally please be aware that for all methods where you pass the final command to be executed by the shell as a string and you are responsible for escaping it. There are serious security implications if any part...
What is the difference between square brackets and parentheses in a regex?
... that regex is trying to match << or >> or [[ or ]]. But from what you've said, it should be matching < or > or [ or ]. If you use | between [], do the brackets behave differently?
– Daniel Kaplan
Nov 14 '17 at 20:39
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What does Serializable mean?
What exactly does it mean for a class to be Serializable in Java? Or in general, for that matter...
10 Answers
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