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Iterating C++ vector from the end to the beginning
...;
i != my_vector.rend(); ++i ) {
}
rbegin()/rend() were especially designed for that purpose. (And yes, incrementing a reverse_interator moves it backward.)
Now, in theory, your method (using begin()/end() & --i) would work, std::vector's iterator being bidirectional, but remember,...
Swift - Split string over multiple lines
... some text
over multiple lines
"""
Older versions of Swift don't allow you to have a single literal over multiple lines but you can add literals together over multiple lines:
var text = "This is some text\n"
+ "over multiple lines\n"
...
How do I get PyLint to recognize numpy members?
...
I had the same issue here, even with the latest versions of all related packages (astroid 1.3.2, logilab_common 0.63.2, pylon 1.4.0).
The following solution worked like a charm: I added numpy to the list of ignored modules by modifying my pylintrc file, in the [TYPECHECK] section:
[...
Bash empty array expansion with `set -u`
...ad. Other patterns, such as ${arr[@]-} or ${arr[@]:0}, are not safe across all major versions of Bash.
As the table below shows, the only expansion that is reliable across all modern-ish Bash versions is ${arr[@]+"${arr[@]}"} (column +"). Of note, several other expansions fail in Bash 4.2, includin...
Why is semicolon allowed in this python snippet?
...ot warrant the use of semicolons to end statements.
So why is this (below) allowed?
15 Answers
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How would I create a UIAlertView in Swift?
... the handler might need to pass the chosen title off to some other method call
– Honey
Nov 30 '16 at 17:27
...
How to handle anchor hash linking in AngularJS
...croll().
Here's the (crappy) documentation.
And here's the source.
Basically you just inject it and call it in your controller, and it will scroll you to any element with the id found in $location.hash()
app.controller('TestCtrl', function($scope, $location, $anchorScroll) {
$scope.scrollTo =...
Print number of keys in Redis
... key. Also Redis may actively evict some expired keys, but not necessarily all of them.
– seppo0010
Aug 24 '15 at 22:23
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What is the difference between HTTP_HOST and SERVER_NAME in PHP?
...T is obtained from the HTTP request header and this is what the client actually used as "target host" of the request. The SERVER_NAME is defined in server config. Which one to use depends on what you need it for. You should now however realize that the one is a client-controlled value which may thus...
How can I create download link in HTML?
... new browser window appear before the download starts. That window will usually be closed when the browser discovers that the resource is a file download.
Note that file types known to the browser (e.g. JPG or GIF images) will usually be opened within the browser.
You can try sending the right hea...