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Could not execute editor
...
Yesterday was just one of those days. On a lark, I decided to set the full path to vi (e.g. /usr/bin/vi) rather than just the executable. Now everything works. I have to admit that I don't get it since vi is perfectly executable on its own (my $EDITOR env variable is also set to vi), bu...
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
...could simply expand the content in the middle to use up that extra points. Set the autoresizing mask of the center content to expand in both directions.
view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
It works great out of the box for table views, howev...
How to do an INNER JOIN on multiple columns
...rts table twice - then you can use both from and to tables in your results set:
SELECT
Flights.*,fromAirports.*,toAirports.*
FROM
Flights
INNER JOIN
Airports fromAirports on Flights.fairport = fromAirports.code
INNER JOIN
Airports toAirports on Flights.tairport = toAirports.code
WHERE...
What is the purpose of Rank2Types?
...s. Take for example a plain old function of the following rank-1 type (to set the scene):
f :: ∀r.∀a.((a → r) → a → r) → r
To use f, the caller first must choose what types to use for r and a, then supply an argument of the resulting type. So you could pick r = Int and a = String:
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What are the basic rules and idioms for operator overloading?
...obj from stream
if( /* no valid object of T found in stream */ )
is.setstate(std::ios::failbit);
return is;
}
When implementing operator>>, manually setting the stream’s state is only necessary when the reading itself succeeded, but the result is not what would be expected.
Func...
Piping command output to tee but also save exit code of command [duplicate]
...
You can set the pipefail shell option option on to get the behavior you want.
From the Bash Reference Manual:
The exit status of a pipeline is the exit status of the last command
in the pipeline, unless the pipefail option is ...
Fastest way to iterate over all the chars in a String
In Java, what would the fastest way to iterate over all the chars in a String, this:
8 Answers
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How do you test functions and closures for equality?
...t = (Int, Int)
let (hi, lo) = unsafeBitCast(f, IntInt.self)
let offset = sizeof(Int) == 8 ? 16 : 12
let ptr = UnsafePointer<Int>(lo+offset)
return (ptr.memory, ptr.successor().memory)
}
@infix func === <A,R>(lhs:A->R,rhs:A->R)->Bool {
let (tl, tr) = (peekFun...
How to close IPython Notebook properly?
...and commandline? So that people who want the server to always run can just set up the correct config.
– gaborous
Mar 22 '13 at 11:25
7
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Change all files and folders permissions of a directory to 644/755
...oup.org/onlinepubs/9699919799/utilities/chmod.html).
What this does is:
Set file/directory to r__r__r__ (0444)
Add w for owner, to get rw_r__r__ (0644)
Set execute for all if a directory (0755 for dir, 0644 for file).
Importantly, the step 1 permission clears all execute bits, so step 3 only ad...