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What is move semantics?
...are Engineering radio podcast interview with Scott Meyers regarding C++0x . Most of the new features made sense to me, and I am actually excited about C++0x now, with the exception of one. I still don't get move semantics ... What is it exactly?
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Converting JSONarray to ArrayList
...n the github gist.github.com/codebutler/2339666
– inexcii
Aug 27 '14 at 1:54
2
Why not use an Arr...
What exactly does += do in python?
...e object appending each element to itself in the same way that the list's extend method does.
Here's a simple custom class that implements the __iadd__ special method. You initialize the object with an int, then can use the += operator to add a number. I've added a print statement in __iadd__ to s...
C++: How to round a double to an int? [duplicate]
I have a double (call it x), meant to be 55 but in actuality stored as 54.999999999999943157 which I just realised.
5 Answe...
How to count the number of set bits in a 32-bit integer?
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How to draw vertical lines on a given plot in matplotlib?
...l in time representation, how to draw lines marking corresponding time index?
6 Answers
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For each row in an R dataframe
... B P2 2 200
3 C P3 3 300
> f <- function(x, output) {
wellName <- x[1]
plateName <- x[2]
wellID <- 1
print(paste(wellID, x[3], x[4], sep=","))
cat(paste(wellID, x[3], x[4], sep=","), file= output, append = T, fill = T)
}
> apply(d, 1, f, output = '...
Get the client IP address using PHP [duplicate]
...))
$ipaddress = getenv('HTTP_CLIENT_IP');
else if(getenv('HTTP_X_FORWARDED_FOR'))
$ipaddress = getenv('HTTP_X_FORWARDED_FOR');
else if(getenv('HTTP_X_FORWARDED'))
$ipaddress = getenv('HTTP_X_FORWARDED');
else if(getenv('HTTP_FORWARDED_FOR'))
$ipaddress = g...
How to get a reference to current module's attributes in Python
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A classic case of "I need X (to get Y done) -> You don't need X you need Z". I do need X though! No offense, I just find this amusing, and the most voted answer gives me the answer I need :)
– pawamoy
Sep 14 '...
Binary search (bisection) in Python
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from bisect import bisect_left
def binary_search(a, x, lo=0, hi=None): # can't use a to specify default for hi
hi = hi if hi is not None else len(a) # hi defaults to len(a)
pos = bisect_left(a, x, lo, hi) # find insertion position
return pos if pos != hi and ...