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Initialization in C++: A Corner Case

Recently, I've been trying to find out the difference between copy-initialization (e.g. in return statements) and direct-initialization (e.g. in static_cast expressions). Besides the explicit keyword, the code posted by [Johannes] really caught my attention because recent versions of GCC and Clang exhibit different behaviors for the mentioned code. Upon further investigation, it may be surprising that these behaviors are somewhat intentional. In the following, I will try to explain this corner case of initialization in C++. This post may be a bit arcane. Anyway, have fun reading!

Introduction

Given the following code:

// -std=c++23

If you're using a high-end bluetooth headset on your Macbook Pro it's likely your mac is using an audio codec which favors battery efficiency over high quality. This results in a drastic degradation of sound, the SBC codec is the likely culprit, read more about it here.

Find out what codec you're using

Play a song on your headphones
Option (⌥) click the Bluetooth button at the top of your screen
If you're using AAC or aptX, you can stop here—those are the highest quality codecs.

Change your codec to AAC or aptX

for 4.2.4 or higher, 4.2.5,4.2.6,4.3.7, it's works, this is the way which makes Always in evaluation mode.

open Terminal, go to the dir : cd /Applications/Beyond Compare.app/Contents/MacOS
change the name BCompare to BCompare.bak: mv BCompare BCompare.bak
touch a file name BCompare , and chmod a+ux BCompare : touch BCompare && chmod a+ux BCompare
open BCompare with text editor, insert the script :

#!/bin/bash
rm "/Users/$(whoami)/Library/Application Support/Beyond Compare/registry.dat"
"`dirname "$0"`"/BCompare.bak $@

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

Linux: HDA+DMIC with skylake driver

	# My steps to:
	# Convert DVD Video to MPEG-4 in MKV without GUI, using only CLI (Command Line Interface) tools.
	# No need for MeGUI, Avisynth, Handbrake etc..
	# ------------------------------------------------------------------------------

	# Tools needed: `mediainfo`, `ffmpeg` & `ffprobe`, `x264`, `mkvmerge`, `mplayer` (optional).
	# Google for them. Use latest versions. Windows tip: avoid Cygwin and get
	# the official builds, x64, when possible.

	# Before start use `mediainfo` & `ffprobe` and note down informations about the source material:

	#! /usr/bin/env python3
	# birdnet_to_mqtt.py
	#
	# 202306171542
	#
	# monitor the records in the syslog file for info from the birdnet system on birds that it detects
	# publish this data to mqtt
	#

	import time

	class Anonymizer
	include ActiveSupport::Benchmarkable

	attr_reader :factory_names, :callbacks

	def initialize(factory_names = nil, callbacks = {})
	raise ArgumentError.new("You must be in development to use the anonymizer") unless Rails.env.development?
	require Rails.root.join("spec/factories") unless FactoryBot.factories.count > 0

	@factory_names = [*factory_names].compact.map(&:to_sym)

	using System;
	using System.Collections.Generic;
	using System.Diagnostics.Contracts;
	using System.Linq;
	using System.Text;
	using System.Threading;
	using System.Threading.Tasks;

	namespace RectifyLib
	{

	// Lines
	float hash( float n ) {
	return fract(sin(n)*753.5453123);
	}

	// Slight modification of iq's noise function.
	float noise(vector_float2 x )
	{
	vector_float2 p = floor(x);
	vector_float2 f = fract(x);