akr4

//! A reproducer of the 'database is locked' error.
//! https://www2.sqlite.org/cvstrac/wiki?p=DatabaseIsLocked
//!
//! The error happens like this:
//! ```
//! thread 'tokio-runtime-worker' panicked at 'called `Result::unwrap()` on an `Err` value: Database(SqliteError { code: 5, message: "database is locked" })', src/bin/multiple.rs:35:22
//! ```
//! The code is "5", while the wiki page says it is 6.
//!
//! ```toml

akr4

use sqlx::sqlite::SqlitePoolOptions;
use anyhow::Result;
use sqlx::{Row, SqlitePool};

fn main() {}

#[tokio::test]
async fn test() -> Result<()> {
    const LOOP_COUNT: usize = 10;
    let db_dir = tempfile::tempdir()?;

akr4

use std::cell::RefCell;
#[cfg(test)]
use std::collections::LinkedList;
use std::rc::Rc;

#[derive(Debug, PartialEq, Eq)]
pub struct TreeNode {
    pub val: i32,
    pub left: Option<Rc<RefCell<TreeNode>>>,
    pub right: Option<Rc<RefCell<TreeNode>>>,

akr4

#[derive(PartialEq, Eq, Clone, Debug)]
pub struct ListNode {
    pub val: i32,
    pub next: Option<Box<ListNode>>,
}

impl ListNode {
    #[inline]
    fn new(val: i32) -> Self {
        ListNode { next: None, val }

akr4

Keybase proof

I hereby claim:

• I am akr4 on github.
• I am akr4 (https://keybase.io/akr4) on keybase.
• I have a public key ASDy2rbkgMGELpnY2TMrZiXjH5F5N1ezWt1HMB2K-0f-igo

To claim this, I am signing this object:

akr4

# https://github.com/stedolan/jq/issues/243#issuecomment-48470943
jqpath () {
  jq '[path(..)|map(if type=="number" then "[]" else tostring end)|join(".")|split(".[]")|join("[]")]|unique|map("."+.)|.[]'
}

akr4

String a = "𠮷";
System.out.println("original: " + a);
System.out.println("length: " + a.length());
System.out.println("decoded: " + a.codePoints().mapToObj(Character::toChars).map(String::valueOf).collect(Collectors.joining(",")));

akr4

import xml.etree.ElementTree as ET
import argparse

arg_parser = argparse.ArgumentParser()
arg_parser.add_argument('in_file')
args = arg_parser.parse_args()

def main(args):
    with open(args.in_file) as f:
        parser = ET.XMLPullParser(['start', 'end'])

akr4

import numpy as np
import chainer
from chainer import cuda, Function, gradient_check, report, training, utils, Variable, Chain
from chainer import datasets, iterators, optimizers, serializers
from chainer import Link, Chain, ChainList
import chainer.functions as F
import chainer.links as L
from chainer.training import extensions

akr4

#!/bin/sh

# Usage:
#   ./any2pdf index.html
#   ./any2pdf main.go
#
# Requirements:
# - Pygments
# - ImageMagick
# - wkhtmltopdf