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Why does C++ not allow inherited friendship?
...ved types (nor should I. They may even be developed by different companies etc). Thus I would be unable to change Foo as doing so would introduce breaking changes into the code base (as I could not modify all class derived from Bar).
Thus if friendship was inherited you are inadvertently introducin...
Early exit from function?
...is a 100% safe way to exit a method, even if the caller is bound to events etc?
– user603284
Jul 14 '11 at 22:11
@dbme...
What is the command to exit a Console application in C#?
...
If you're in Main you can just return 0, 1, etc. and mark the method signature as returning an int to return an error code, you don't NEED to use Environment.Exit to specify an error code.
– Servy
Apr 23 '12 at 18:46
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missing private key in the distribution certificate on keychain
...
create new developer certificate (keychain access/.../request for csr...etc.)
download and install a new certificate
create a new provisioning profile for existing app id (on provisioning portal)
download and install new provisioning profile and in the build, settings set the appropriate co...
What columns generally make good indexes?
...ata type that can be given some meaningful order, ie sorted (integer, date etc).
It does not matter if the data in a column is generally increasing. If you create an index on the column, the index will create it's own data structure that will simply reference the actual items in your table without...
Removing the title text of an iOS UIBarButtonItem
...d idea. With the push to autolayout, size classes, accessibility features, etc.. using constant values like this is bound to bite you.
– Michael Peterson
Mar 17 '16 at 21:15
3
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How do I shuffle an array in Swift?
...Distance` in < Swift 4.1
let d: Int = numericCast(arc4random_uniform(numericCast(unshuffledCount)))
let i = index(firstUnshuffled, offsetBy: d)
swapAt(firstUnshuffled, i)
}
}
}
extension Sequence {
/// Returns an array with the contents of this...
Get program execution time in the shell
...bash
START=$(date +%s)
# do something
# start your script work here
ls -R /etc > /tmp/x
rm -f /tmp/x
# your logic ends here
END=$(date +%s)
DIFF=$(( $END - $START ))
echo "It took $DIFF seconds"
share
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Start two instances of IntelliJ IDE
...DEA_PROPERTIES, STUDIO_PROPERTIES, PHPSTORM_PROPERTIES, WEBIDE_PROPERTIES, etc. And ensure you don't use short dirs: "~/" instead of "/home/myname"
– JoniJnm
Aug 22 '17 at 15:04
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List all tables in postgresql information_schema
What is the best way to list all of the tables within PostgreSQL's information_schema?
8 Answers
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