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Is std::vector so much slower than plain arrays?
...s quick as vector.
But after looking at the code in more detail this is expected; as you run across the vector twice and the array only once. Note: when you resize() the vector you are not only allocating the memory but also running through the vector and calling the constructor on each member.
R...
convert '1' to '0001' in JavaScript [duplicate]
...t; "0001"
12345 -> "12345"
Supporting negative numbers is left as an exercise ;-)
Happy coding.
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SQL Server query - Selecting COUNT(*) with DISTINCT
...l return a row for each unique count. What you want is COUNT(DISTINCT <expression>): evaluates expression for each row in a group and returns the number of unique, non-null values.
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How to use java.net.URLConnection to fire and handle HTTP requests?
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First a disclaimer beforehand: the posted code snippets are all basic examples. You'll need to handle trivial IOExceptions and RuntimeExceptions like NullPointerException, ArrayIndexOutOfBoundsException and consorts yourself.
Preparing
We first need to know at least the URL and the charset. The...
How do I disable form resizing for users? [duplicate]
...
Change the FormBorderStyle to one of the fixed values: FixedSingle, Fixed3D,
FixedDialog or FixedToolWindow.
The FormBorderStyle property is under the Appearance category.
Or check this:
// Define the border style of the form to a dialog box.
form1.FormBorderStyle ...
Abort a git cherry-pick?
...orkflow, if anything. It seems to work out for me.
– x-yuri
Aug 22 '14 at 10:03
3
what's the diff...
How do I make a list of data frames?
...lly named data frames is a problem, and putting them in a list is a good fix, but best practice is to avoid having a bunch of data.frames not in a list in the first place.
The other answers give plenty of detail of how to assign data frames to list elements, access them, etc. We'll cover that a lit...
Mock framework vs MS Fakes frameworks
...and how the methods were called). I find the MS fakes approach more complex and less expressive.
To clarify the difference in what the frameworks provide: NMock, RhinoMocks and Moq all provide two types of test doubles (stubs and mocks). The fakes framework provides stubs and moles (they call th...
How to unzip a list of tuples into individual lists? [duplicate]
... >>> l = [(1,2), (3,4), (8,9)] >>> zip(*l) <zip at 0x1042d8c48> which can be viewed with a list comprehension >>> [ii for ii in zip(*l)] [(1, 3, 8), (2, 4, 9)].
– amath
Dec 12 '16 at 22:11
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