cleanup: Slight improvement of C++ code. #61

	---
	name: ci

	on:
	pull_request:
	branches: [master]

	# Cancel old PR builds when pushing new commits.
	concurrency:
	group: build-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	wireguard-vpn:
	runs-on: ubuntu-latest
	steps:
	- run: \|
	sudo apt install wireguard
	echo "UGdw/CjBpnKF/xJ3/orlUty29kYi1NMnXdXVYExFFH8=" > privatekey
	sudo ip link add dev wg0 type wireguard
	sudo ip address add dev wg0 10.100.0.2 peer 10.100.0.1
	sudo wg set wg0 listen-port 48123 private-key privatekey peer Tb1SOeotVZa6FbEmRq1x4Wo62PxjrjLeHbRYp4kTH2A= allowed-ips 10.100.0.0/24 endpoint code.tox.chat:51820
	sudo ip link set up dev wg0
	#ping 10.100.0.1
	sudo ifconfig wg0
	sudo wg show

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