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How can I multiply and divide using only bit shifting and adding?
...f use: https://stackoverflow.com/a/12699549/1182653
EDIT2:
One of the fastest ways to divide by integer constants is to exploit the modular arithmetics and Montgomery reduction: What's the fastest way to divide an integer by 3?
...
How do I create a copy of an object in PHP?
...
I was doing some testing and got this:
class A {
public $property;
}
function set_property($obj) {
$obj->property = "after";
var_dump($obj);
}
$a = new A();
$a->property = "before";
// Creates a new Object from $a. Like "...
Representing Directory & File Structure in Markdown Syntax [closed]
... When using this anwser the tree is just renderd as a few text lines. Tested in VSCode and VisualStudio with md plugin. Also on GitHub this is not working
– Danny
Nov 22 '18 at 10:05
...
Liquibase lock - reasons?
...}
}
The code is enforcing the release of the lock. This can be useful in test set-ups where the release call might not get called in case of errors or when the debugging is aborted.
The class must be placed in the liquibase.ext package and will be picked up by the Spring Boot 2 auto configuration...
Comparing two dataframes and getting the differences
...ponse above.
df_diff = pd.concat([df1,df2]).drop_duplicates(keep=False)
Testing with these dataframes:
df1=pd.DataFrame({
'Date':['2013-11-24','2013-11-24','2013-11-24','2013-11-24'],
'Fruit':['Banana','Orange','Apple','Celery'],
'Num':[22.1,8.6,7.6,10.2],
'Color':['Yellow','Oran...
How to set HttpResponse timeout for Android in Java
...
Doesn't work. I tested on my Sony and Moto, they all get tucked.
– thecr0w
Jul 8 '13 at 9:30
...
Jackson Vs. Gson [closed]
...-limited) use cases; can mix with data binding (bind sub-trees) -- EDIT: latest versions of Gson also include streaming reader
Tree model (DOM-like access); can convert between various models (tree <-> java object <-> stream)
Can use any constructors (or static factory methods), not just...
What's the difference between commit() and apply() in SharedPreferences
..., but what about if you are writing and reading immediately after? From my tests, the newest value is returned, but I want to know if this is 100% guaranteed or not.
– Tiago
Sep 20 '15 at 22:44
...
How to drop a PostgreSQL database if there are active connections to it?
...ections are also not shown inside pgAdminIII.
If you are doing automatic testing (in which you also create users) this might be a probable scenario.
In this case you need to revert to queries like:
SELECT pg_terminate_backend(procpid)
FROM pg_stat_get_activity(NULL::integer)
WHERE datid=(...
What is the purpose of the HTML “no-js” class?
...rors may occur after Modernizr has done this so its not a foolproof way of testing JS is functioning
– htmlr
Feb 11 '14 at 4:21
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