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Swift make method parameter mutable?
...passing in a pointer.
func reduceToZero(_ x: inout Int) {
while (x != 0) {
x = x-1
}
}
var a = 3
reduceToZero(&a)
print(a) // will print '0'
This can be particularly useful in recursion.
Apple's inout declaration guidelines can be found here.
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Showing Difference between two datetime values in hours
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120
I think you're confused because you haven't declared a TimeSpan you've declared a TimeSpan? whic...
Different types of thread-safe Sets in Java
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206
1) The CopyOnWriteArraySet is a quite simple implementation - it basically has a list of elemen...
Advantage of creating a generic repository vs. specific repository for each object?
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edited Aug 23 '13 at 15:00
Brody Robertson
7,87122 gold badges4040 silver badges4242 bronze badges
ans...
Could not find com.google.android.gms:play-services:3.1.59 3.2.25 4.0.30 4.1.32 4.2.40 4.2.42 4.3.23
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edited Dec 3 '15 at 1:20
CJBS
12.4k55 gold badges6868 silver badges119119 bronze badges
answered Jun ...
Bootstrap Dropdown menu is not working
...ybe try with
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/c...
Purpose of #!/usr/bin/python3
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edited May 26 at 14:06
Mohammed Mishal
29622 silver badges1616 bronze badges
answered Oct 6 '11 at...
psql: FATAL: Peer authentication failed for user “dev”
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Try:
psql -U user_name -h 127.0.0.1 -d db_name
where
-U is the database user name
-h is the hostname/IP of the local server, thus avoiding Unix domain sockets
-d is the database name to connect to
This is then evaluated as a "network" connection by ...
Find size of an array in Perl
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Chris Jester-YoungChris Jester-Young
200k4444 gold badges362362 silver badges409409 bronze badges
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CALL command vs. START with /WAIT option
...ll remain open
– FrinkTheBrave
Mar 30 '15 at 7:36
5
You can find the comparison between CALL and ...