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What is a C++ delegate?
...l a sad testimoney on how C++ evolves.
Only rarely is it pointed out, that now over 3 C++ standard revisions, delegates were not properly addressed. (Or the lack of language features which allow for straightforward delegate implementations.)
With the way C++11 lambda functions are defined by the sta...
Find intersection of two nested lists?
I know how to get an intersection of two flat lists:
20 Answers
20
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Render partial from different folder (not shared)
...l.ControllerContextRegion("Foo")) {
// Html.Action, Html.Partial, etc. now looks things up as though
// FooController was our controller.
}
There may be unwanted side effects for this if your code requires the controller route component to not change, but in our code so far, there doesn't ...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
...ults, but we've ascertained that it's at least one-quarter of all inputs.
Now let's look at a fixed-width (i.e. non-bignum) integer power function. For what portion inputs does it not simply overflow? To maximize the number of meaningful input pairs, the base should be signed and the exponent uns...
Retrieve only the queried element in an object array in MongoDB collection
...y only return the array "shapes" and it won't return other fields. Anyone knows how to return other fields also?
– Mark Thien
Jul 29 '16 at 0:24
1
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How can I recognize touch events using jQuery in Safari for iPad? Is it possible?
...tically passed to the handler. For the safari browser (and android too) it now contains an array of all the touches the user has made on the screen. Each touch has its own properties (x,y coords for example)
– David Pean
Jan 21 '11 at 6:05
...
My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
Among the many things Stack Overflow has taught me is what is known as the "most vexing parse", which is classically demonstrated with a line such as
...
How to use UIVisualEffectView to Blur Image?
...the blur to an image? I've been trying to figure out the code for a while now :( still new at obj c!
7 Answers
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pytest: assert almost equal
...
py.test now has a feature that does this. I've added an answer discussing it.
– dbn
Nov 3 '16 at 18:36
2
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Fastest Way to Find Distance Between Two Lat/Long Points
...s of Geometry data types in MyISAM table. As of Mysql 5.7.5, InnoDB tables now also support SPATIAL indices.
Create a SPATIAL index on these points
Use MBRContains() to find the values:
SELECT *
FROM table
WHERE MBRContains(LineFromText(CONCAT(
'('
, @lon + 10 / ( 111.1 / cos...