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Fastest way to determine if an integer's square root is an integer
...04040 computed below
{
for (int i=0; i<64; ++i) goodMask |= Long.MIN_VALUE >>> (i*i);
}
public boolean isSquare(long x) {
// This tests if the 6 least significant bits are right.
// Moving the to be tested bit to the highest position saves us masking.
if (goodMask <&l...
Change the Target Framework for all my projects in a Visual Studio Solution
...--------------------------------
' Copyright (C) 2007-2008 Scott Dorman (sj_dorman@hotmail.com)
'
' This library is free software; you can redistribute it and/or
' modify it under the terms of the Microsoft Public License (Ms-PL).
'
' This library is distributed in the hope that it will be useful,
'...
Is there a way to delete a line in Visual Studio without cutting it?
...
@nathan_hc, that actually performs a cut, which pollutes the clipboard. (Try it yourself and paste after using CTRL-L)
– Kirk Woll
Sep 17 '10 at 2:39
...
How do you use variables in a simple PostgreSQL script?
...e (http://www.postgresql.org/docs/9.1/static/sql-do.html )
DO $$
DECLARE v_List TEXT;
BEGIN
v_List := 'foobar' ;
SELECT *
FROM dbo.PubLists
WHERE Name = v_List;
-- ...
END $$;
Also you can get the last insert id:
DO $$
DECLARE lastid bigint;
BEGIN
INSERT INTO test (name) VALUES ('...
How can I delete Docker's images?
... The windows powershell equivalent is docker images -q | %{docker rmi -f $_}
– BeatingToADifferentRobot
Jun 28 '16 at 21:17
...
How to determine if an NSDate is today?
...wered Mar 24 '14 at 3:34
Catfish_ManCatfish_Man
38.6k1111 gold badges6363 silver badges8181 bronze badges
...
Coding in Other (Spoken) Languages
...nce I don't speak a word of that language, stuff could have been called var_123, var_562 or func_333 as well (and probably it would have been easier for me to remember the names or at least to have a chance of spelling them right without copying and pasting). Since this was a short, self-contained s...
keytool error :java.io.IoException:Incorrect AVA format
...ception: (line breaks added for legibility)
C:\Program Files\Java\jdk1.6.0_45\jre\bin>keytool
-genkey -v -dname PatrickTaylor -validity 10000
-keystore C:\drops\patrickkeystore
this command completed successfully:
C:\Program Files\Java\jdk1.6.0_45\jre\bin>keytool
-genkey -v -dname Patr...
Cocoa Core Data efficient way to count entities
... = [NSEntityDescription entityForName:@"YourEntity" inManagedObjectContext:_managedObjectContext];
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
[fetchRequest setEntity:entity];
[fetchRequest setIncludesPropertyValues:NO];
[fetchRequest setIncludesSubentities:NO];
NSError *error = ni...
Javascript Cookie with no expiration date
...038-01-19 04:14:07
So Maximum cookie life time is
$.cookie('subscripted_24', true, { expires: 2147483647 });
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