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Rounding up to next power of 2
...d. CPUs have an instruction to help this (actually already at that time?). From : jameshfisher.com/2018/03/30/round-up-power-2.html uint64_t next_pow2(uint64_t x) { return x == 1 ? 1 : 1<<(64-__builtin_clzl(x-1)); } And for 32 bit : uint32_t next_pow2(uint32_t x) { return x == 1 ? 1 : 1<&...
Tool to read and display Java .class versions
...he version number of the class file.
> javap -verbose MyClass
Compiled from "MyClass.java"
public class MyClass
SourceFile: "MyClass.java"
minor version: 0
major version: 46
...
To only show the version:
WINDOWS> javap -verbose MyClass | find "version"
LINUX > javap -verbose MyCl...
Run command on the Ansible host
...ks or for some hands-on learning of Ansible.
The example of code is taken from this good article:
Running ansible playbook in localhost
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Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...ion, this functionality has been added to pandas in the meantime. Starting from pandas 0.15.0, you can use tz_localize(None) to remove the timezone resulting in local time.
See the whatsnew entry: http://pandas.pydata.org/pandas-docs/stable/whatsnew.html#timezone-handling-improvements
So with my ex...
Does static constexpr variable inside a function make sense?
...
@AndrewLazarus, you can't cast away const from a const object, only from a const X* which points to an X. But that's not the point; the point is that automatic objects cannot have static addresses. As I said, constexpr ceases to be meaningful once the compilation is ...
Rails: confused about syntax for passing locals to partials
...ering" people on SO. That's why this site exists. I even learned something from this.
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When is a language considered a scripting language? [closed]
... the same language can be used for scripting language by another.
This is from the wikipedia article about scripting languages:
A scripting language, script language or extension language is a programming language that allows control of one or more software applications. "Scripts" are distinct ...
How can I remove time from date with Moment.js?
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'day and date key both mean day-of-the-month.' from the docs. day works pre version 2.8.4.
– oldwizard
May 17 '17 at 7:13
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Create a List of primitive int?
...The performance of this list, when compared with the ArrayList of Integers from Java Collections is much better as the autoboxing/unboxing to the corresponding Integer Wrapper Class is not needed.
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How to find unused images in an Xcode project?
... if [ -z "$result" ]; then
echo "$i"
fi
done
# Ex: to remove from git
# for i in `./script/unused_images.sh`; do git rm "$i"; done
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