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Iterating C++ vector from the end to the beginning
... ++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, end() isn't the last element —...
Is there a standardized method to swap two variables in Python?
...om left to right. Notice that while
evaluating an assignment, the right-hand side is evaluated before the
left-hand side.
http://docs.python.org/3/reference/expressions.html#evaluation-order
That means the following for the expression a,b = b,a :
the right-hand side b,a is evaluated,...
How to log out user from web site using BASIC authentication?
... automatically.
What you have to do is have the user click a logout link, and send a ‘401 Unauthorized’ in response, using the same realm and at the same URL folder level as the normal 401 you send requesting a login.
They must be directed to input wrong credentials next, eg. a blank username-...
How do I purge a linux mail box with huge number of emails? [closed]
I have setup some cron jobs and they send the crons result to an email. Now over the months I have accumulated a huge number of emails.
...
Retrieving parameters from a URL
... edited Feb 12 at 12:29
Pikamander2
4,13822 gold badges3030 silver badges4747 bronze badges
answered Feb 22 '11 at 7:54
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How to load a xib file in a UIView
I have been searching everywhere and nothing so far has worked for me.
7 Answers
7
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How to get current language code with Swift?
...
It's important to make the difference between the App language and the device locale language (The code below is in Swift 3)
Will return the Device language:
let locale = NSLocale.current.languageCode
Will return the App language:
let pre = Locale.preferredLanguages[0]
...
Do AJAX requests retain PHP Session info?
If I had a user logged onto my site, having his id stored in $_SESSION , and from his browser he clicked a 'Save' button which would make an AJAX request to the server. Will his $_SESSION and cookies be retained in this request, and can I safely rely on the id being present in the $_SESSION ?
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What is the effect of extern “C” in C++?
...then link to using the C name.
Since C++ has overloading of function names and C does not, the C++ compiler cannot just use the function name as a unique id to link to, so it mangles the name by adding information about the arguments. A C compiler does not need to mangle the name since you can not ...
How to get the nvidia driver version from the command line?
For debugging CUDA code and checking compatibilities I need to find out what nvidia driver version for the GPU I have installed. I found How to get the cuda version? but that does not help me here.
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