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C++11 rvalues and move semantics confusion (return statement)
I'm trying to understand rvalue references and move semantics of C++11.
6 Answers
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What is the size of an enum in C?
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Taken from the current C Standard (C99): http://www.open-std.org/JTC1/SC22/WG14/www/docs/n1256.pdf
6.7.2.2 Enumeration specifiers
[...]
Constraints
The expression that defines the value of an enumeration constant shall be an integer
constan...
What is the purpose of Rank2Types?
...morphic. In the example map uses id as if it had type String -> String. And of course you can also pass a simple monomorphic function of the given type instead of id. Without rank2types there is no way for a function to require that its argument must be a polymorphic function and thus also no way...
Why are Where and Select outperforming just Select?
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Select iterates once over the entire set and, for each item, performs a conditional branch (checking for validity) and a + operation.
Where+Select creates an iterator that skips invalid elements (doesn't yield them), performing a + only on the valid items.
So, the...
Disable git EOL Conversions
...l files NOT found below
#
# These files are text and should be normalized (Convert crlf => lf)
*.css text
*.html text
*.java text
*.js text
*.json text
*.properties text
*.txt text
*.xml text
# These files are binary and shou...
Java: how can I split an ArrayList in multiple small ArrayLists?
...ew of the portion of this list between the specified fromIndex, inclusive, and toIndex, exclusive. (If fromIndex and toIndex are equal, the returned list is empty.) The returned list is backed by this list, so non-structural changes in the returned list are reflected in this list, and vice-versa. Th...
Procedure expects parameter which was not supplied
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I would check my application code and see what value you are setting @template to. I suspect it is null and therein lies the problem.
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Find out time it took for a python script to complete execution
...imer("test()", "from __main__ import test")
print t.timeit()
Then to convert to minutes, you can simply divide by 60. If you want the script runtime in an easily readable format, whether it's seconds or days, you can convert to a timedelta and str it:
runtime = time() - st
print 'runtime:', t...
What's the best practice to round a float to 2 decimals? [duplicate]
I'm using eclipse + Android SDK.
7 Answers
7
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Split a collection into `n` parts with LINQ?
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A pure linq and the simplest solution is as shown below.
static class LinqExtensions
{
public static IEnumerable<IEnumerable<T>> Split<T>(this IEnumerable<T> list, int parts)
{
int i = 0;
...