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C++ STL Vectors: Get iterator from index?
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@VincentRobert: Other way around. Pointers are valid implementations of STL random iterators, the most powerful category. But other, less powerful categories such as forward iterators do not support the same arithmetic.
– MSalters
Jan 3...
std::back_inserter for a std::set?
... at all? Calling insert instead of push_back on a vector should be roughly identical (O(1)) when no elements have to be moved.
– Felix Dombek
Jan 2 '18 at 5:14
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What is the difference between save and export in Docker?
...th containers, while the other works with images.
An image has to be considered as 'dead' or immutable, starting 0 or 1000 containers from it won't alter a single byte. That's why I made a comparison with a system install ISO earlier. It's maybe even closer to a live-CD.
A container "boots" the im...
JavaScript regex multiline flag doesn't work
...is highly recommended to use the *? quantifier instead of * in order to avoid greediness. This will avoid catching the last <h1> of the document: that's probably not what you want and that's not efficient as the regexp will continue to look for <h1> until the end of the string even if it...
SQL query to get all values a enum can have
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Try:
SELECT e.enumlabel
FROM pg_enum e
JOIN pg_type t ON e.enumtypid = t.oid
WHERE t.typname = 'myenum'
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Differences between action and actionListener
...ollowing signature:
import javax.faces.event.ActionEvent;
// ...
public void actionListener(ActionEvent event) {
// ...
}
And it's supposed to be declared as follows, without any method parentheses:
<h:commandXxx ... actionListener="#{bean.actionListener}" />
Note that you can't pass ad...
What does the slash mean in help() output?
...ked this question myself. :) Found out that / was originally proposed by Guido in here.
Alternative proposal: how about using '/' ? It's kind of the opposite
of '*' which means "keyword argument", and '/' is not a new character.
Then his proposal won.
Heh. If that's true, my '/' proposal...
How do I move an existing window to a new tab?
...n normal mode) to hit Ctrl-W Shift-T. Ctrl-W is the general prefix for a wide variety of window manipulation commands.
See:
:help Ctrl-W_T
:help Ctrl-W
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What is the __DynamicallyInvokable attribute for?
...code somewhere that checks the attribute applied to types and methods. No idea where that is located, but given that it would have to need to have a view of all .NET types to have a shot at caching, I can only think of Ngen.exe.
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Float vs Decimal in ActiveRecord
... This clue helped me. Thanks for that!
– Babajide M. Moibi
Jul 15 at 14:58
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