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Rule-of-Three becomes Rule-of-Five with C++11?
...and the most concise option. The prohibition ("- it shall not be virtual") from n3242 is not present anymore in n3290 and GCC allows it while previously it didn't.
– Luc Danton
Sep 21 '11 at 18:18
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How to determine if an NSDate is today?
...ndarUnitEra | NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay fromDate:aDate];
NSDateComponents *today = [[NSCalendar currentCalendar] components:NSCalendarUnitEra | NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay fromDate:[NSDate date]];
if([today day] == [otherDay day] &a...
How to Test Facebook Connect Locally
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@Simon_Weaver where did you get this information from? is it documented somewhere?
– kolistivra
Dec 3 '18 at 16:22
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Setting global styles for Views in Android
...extViewStyle (in this instance, bold and red)!
This was tested on devices from API level 4 onward and seems to work great.
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What exactly does the “u” do? “git push -u origin master” vs “git push origin master”
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The key is "argument-less git-pull". When you do a git pull from a branch, without specifying a source remote or branch, git looks at the branch.<name>.merge setting to know where to pull from. git push -u sets this information for the branch you're pushing.
To see the differen...
Declaring variables inside or outside of a loop
...lity.
Performance doesn't matter for today's compilers.(in this scenario)
From a maintenance perspective, 2nd option is better.
Declare and initialize variables in the same place, in the narrowest scope possible.
As Donald Ervin Knuth told:
"We should forget about small efficiencies, say about...
How to do URL decoding in Java?
...(UnsupportedEncodingException e) {
// not going to happen - value came from JDK's own StandardCharsets
}
Java 10 added direct support for Charset to the API, meaning there's no need to catch UnsupportedEncodingException:
String result = java.net.URLDecoder.decode(url, StandardCharsets.UTF_8);...
Are memory leaks ever ok? [closed]
... a memory leak and it can impair your program. Future allocations can fail from this proces because I am sure you are checking that malloc returned non nil everywhere. by over using memory, such as in an embedded situation where memor is scarce this could be the difference between life and death.
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What is the difference between .*? and .* regular expressions?
... Can you explain or show an example of how the greedy ? differs from the non-greedy ?? ?
– AdrianHHH
Nov 25 '15 at 15:36
4
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Passing an array by reference
...mp; x[100]); is parsed as "array of references" please? Is it because the "from-right-to-left" rule? If yes, it seems to be not consistent with how void foo(int (&x)[100]); is parsed as "a reference to a array". Thanks in advance.
– zl9394
Feb 11 '17 at 0:5...