timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

msehnout

/*
 * # C++17 Coding challenge in Rust
 * How to deal with edge cases:
 *    * if the input file is empty, the program should write “input file missing” to the console.
 *    * if the input file does not contain the specified column, the program should write “column name doesn’t exists in the input file” to the console.
 *
 * The rest was not considered and mercilessly unwrapped.
 */

use std::env;

steveklabnik

use std::env;
use std::io;
use std::io::prelude::*;
use std::fs::File;

#[derive(Debug)]
enum Error {
    Io(io::Error),
    Program(&'static str),
}

playground.rs

//[dependencies]
//time = "0.1"
//futures = "0.1.14"
//tokio-core = "0.1"
//tokio-periodic = "0.1"

#[macro_use]
extern crate tokio_core;

extern crate time;

gravitylow

If you are getting this in gdb on macOS while trying to run a program:

Unable to find Mach task port for process-id 57573: (os/kern) failure (0x5).
 (please check gdb is codesigned - see taskgated(8))

1. Open Keychain Access
2. In menu, open Keychain Access > Certificate Assistant > Create a certificate
3. Give it a name (e.g. gdbc)

andywer

This is a proposal for lightning talk at Reactive Conf. Please 🌟 this gist to push the proposal!

Memory Leak Testing in 2017

Hi, I am Andy, creator of leakage - the node-powered memory leak testing library.

Instead of manual debugging it provides a structured approach to fix or even prevent memory leaks.

mojavelinux

How to configure Asciidoctor Diagram in a Jekyll site

• Generate site

Generate site

$ cd /tmp

$ mkdir jekyll-site-creator

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

DarinM223

array_layout = "Visual"
chain_indent = "Block"
array_width = 80
chain_one_line_max = 80
comment_width = 80
condense_wildcard_suffices = false
closure_block_indent_threshold = 2
control_brace_style = "AlwaysSameLine"
disable_all_formatting = false
error_on_line_overflow = true

dinfuehr

5555555555555555 0101010101010101010101010101010101010101010101010101010101010101 size=02 length=00 rotation=00 N=0 immr=000000 imms=111100
aaaaaaaaaaaaaaaa 1010101010101010101010101010101010101010101010101010101010101010 size=02 length=00 rotation=01 N=0 immr=000001 imms=111100
1111111111111111 0001000100010001000100010001000100010001000100010001000100010001 size=04 length=00 rotation=00 N=0 immr=000000 imms=111000
8888888888888888 1000100010001000100010001000100010001000100010001000100010001000 size=04 length=00 rotation=01 N=0 immr=000001 imms=111000
4444444444444444 0100010001000100010001000100010001000100010001000100010001000100 size=04 length=00 rotation=02 N=0 immr=000010 imms=111000
2222222222222222 0010001000100010001000100010001000100010001000100010001000100010 size=04 length=00 rotation=03 N=0 immr=000011 imms=111000
3333333333333333 0011001100110011001100110011001100110011001100110011001100110011 size=04 length=01 rotation=00 N=0 immr=000000 imms=111001
9999999999999999 100110011001100110011001100