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How do I use arrays in C++?
...sed virtually everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, when you read legacy code or interact with a...
Removing first x characters from string?
...if one had a string lipsum , how would they remove the first 3 characters and get a result of sum ?
5 Answers
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How do I change the default port (9000) that Play uses when I execute the “run” command?
...used by the play framework in development mode when issueing the "run" command on the play console.
21 Answers
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Passing an integer by reference in Python
...n Python, assignment (=) takes whatever object is the result of the right hand side and binds it to whatever is on the left hand side *(or passes it to the appropriate function).
Understanding this, we can see why there is no way to change the value of an immutable object inside a function -- you c...
What is the most accurate way to retrieve a user's correct IP address in PHP?
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@Rook: Yes, I know. The OP is aware of that, and I've also mentioned it in my answer. But thanks for the comment.
– Alix Axel
Jun 25 '11 at 1:45
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C++: How to round a double to an int? [duplicate]
...xact: It has plenty of digits to store some fractional part you add to it. And it's especially true of 0.5, which is a power of two.
– Ruslan
Jul 15 '16 at 12:03
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How to check if one of the following items is in a list?
... S2 = set(L2)
>>> S1.intersection(S2)
set([2])
Both empty lists and empty sets are False, so you can use the value directly as a truth value.
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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,...
Tricks to manage the available memory in an R session
...ive R session? I use the functions below [based on postings by Petr Pikal and David Hinds to the r-help list in 2004] to list (and/or sort) the largest objects and to occassionally rm() some of them. But by far the most effective solution was ... to run under 64-bit Linux with ample memory.
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Xcode 4, Core Data Model Version - Set Current Version
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still getting used to the changes between Xcode 3 and 4, thanks!
– Chris
May 31 '11 at 16:12
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