Skip to content

Instantly share code, notes, and snippets.

@koute
koute / borrow_vs_as_ref.rs
Created March 15, 2017 18:14
Rust: Borrow vs AsRef
#![allow(non_snake_case)]
#![allow(dead_code)]
use std::borrow::Borrow;
use std::convert::AsRef;
struct Y;
struct X {
y: Y
package hu.akarnokd.reactiveflowbridge;
import java.util.Objects;
import java.util.concurrent.Flow;
import java.util.function.Function;
/**
* Bridge between Reactive-Streams API and the Java 9 Flow API.
*/
public final class ReactiveFlowBridge {
@apangin
apangin / HotSpot JVM intrinsics
Last active July 20, 2024 10:43
HotSpot JVM intrinsics
_hashCode java/lang/Object.hashCode()I
_getClass java/lang/Object.getClass()Ljava/lang/Class;
_clone java/lang/Object.clone()Ljava/lang/Object;
_dabs java/lang/Math.abs(D)D
_dsin java/lang/Math.sin(D)D
_dcos java/lang/Math.cos(D)D
_dtan java/lang/Math.tan(D)D
_datan2 java/lang/Math.atan2(DD)D
_dsqrt java/lang/Math.sqrt(D)D
_dlog java/lang/Math.log(D)D
@MarcDiethelm
MarcDiethelm / Contributing.md
Last active July 6, 2024 13:12
How to contribute to a project on Github

This text now lives at https://github.com/MarcDiethelm/contributing/blob/master/README.md. I turned it into a Github repo so you can, you know, contribute to it by making pull requests.


Contributing

If you want to contribute to a project and make it better, your help is very welcome. Contributing is also a great way to learn more about social coding on Github, new technologies and and their ecosystems and how to make constructive, helpful bug reports, feature requests and the noblest of all contributions: a good, clean pull request.

@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active July 22, 2024 09:57
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'