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Is there a range class in C++11 for use with range based for loops?
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The C++ standard library does not have one, but Boost.Range has boost::counting_range, which certainly qualifies. You could also use boost::irange, which is a bit more focused in scope.
C++20's range library will allow you to do this ...
How to reverse a singly linked list using only two pointers?
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Any alternative? No, this is as simple as it gets, and there's no fundamentally-different way of doing it. This algorithm is already O(n) time, and you can't get any faster than that, as you must modify every node.
It looks like your code is on the right track, but it's not...
Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...someone explain why the result I want, "hi", is preceded with a letter 'b' and followed with a newline?
4 Answers
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How to copy a dictionary and only edit the copy
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It might be better to say "dict2 and dict1 point to the same dictionary", you are not changing dict1 or dict2 but what they point to.
– GrayWizardx
Mar 17 '10 at 21:15
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String.Join method that ignores empty strings?
... I'm getting an error: "'Where' is not a member of 'System.Array'". And I don't see anything about 'Where' on MSDN: msdn.microsoft.com/en-us/library/system.array.aspx
– Doug
May 2 '13 at 12:55
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unix - head AND tail of file
Say you have a txt file, what is the command to view the top 10 lines and bottom 10 lines of file simultaneously?
20 Answer...
Hidden features of Scala
...e second line looks confusing if you're not used to using pattern matching and extractors. Whenever you define a val or var, what comes after the keyword is not simply an identifier but rather a pattern. That's why this works:
val (a, b, c) = (1, 3.14159, "Hello, world")
The right hand expressi...
Is 1.0 a valid output from std::generate_canonical?
I always thought random numbers would lie between zero and one, without 1 , i.e. they are numbers from the half-open interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this.
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What is the difference between
... edited Aug 11 at 9:09
Alexandr Nil
14111 gold badge55 silver badges1010 bronze badges
answered Nov 3 '11 at 14:44
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How to drop SQL default constraint without knowing its name?
...ver, I know the query to check if a default constraint exists for a column and drop a default constraint is:
14 Answers
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