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initializer_list and move semantics
Am I allowed to move elements out of a std::initializer_list<T> ?
8 Answers
8
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Best practice: PHP Magic Methods __set and __get [duplicate]
..._$p";
if(method_exists($this, $m)) return $this->$m();
user_error("undefined property $p");
}
when someone calls $obj->xxx and the class has get_xxx defined, this method will be implicitly called. So you can define a getter if you need it, while keeping your interface uniform an...
NullPointerException in Java with no StackTrace
...sing log4j. I discovered (inadvertently) a place where I had written
LOG.error(exc);
instead of the typical
LOG.error("Some informative message", e);
through laziness or perhaps just not thinking about it. The unfortunate part of this is that it doesn't behave as you expect. The logger API ...
How to change the map center in Leaflet.js
The following code initializes a leaflet map. The initialize function centers the map based on user location. How do I change the center of the map to a new position after calling the initialize function?
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Most pythonic way to delete a file which may not exist
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A more pythonic way would be:
try:
os.remove(filename)
except OSError:
pass
Although this takes even more lines and looks very ugly, it avoids the unnecessary call to os.path.exists() and follows the python convention of overusing exceptions.
It may be worthwhile to write a functio...
Differences between Perl and PHP [closed]
... and range (.. and ...). PHP has a few operators Perl doesn't, such as the error suppression operator (@), instanceof (though Perl does have the Universal::isa method) and clone.
In PHP, new is an operator. In Perl, it's the conventional name of an object creation subroutine defined in packages, no...
How do I initialize a byte array in Java?
... @petmez dumb question: in JAVA, is something like "".getBytes(UTF_8)); (getBytes on an empty string) a safe thing to do? is it 'legal'? Or can I just do: = new byte[0]; ?
– Robert Achmann
Mar 1 '19 at 18:35
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How can I delete all Git branches which have been merged?
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This produces an error fatal: branch name required if you have no branches that should be deleted. To avoid that you can pass -r to xargs so it won't run git branch -d if the stdin is empty. (This a GNU xargs extension, according to the man...
How can I visualize per-character differences in a unified diff file?
... i had to add ' to the beginning of the value there. otherwise i got an error. Also, i simply using --color-words i get the exact same behaviour as using that regexp.
– gcb
Oct 14 '13 at 6:41
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Is there a (repeat-last-command) in Emacs?
...nd command.
– Drew
Jan 26 '14 at 23:05
You can also use C-x M-: as part of a keyboard macro, which can be handy. The ...