phaser

template <class Fun>
class ScopeGuard {
  Fun f_;
	bool active_;
public:
	ScopeGuard(Fun f)
		: f_(std::move(f))
		, active_(true) {
	}
	~ScopeGuard() { if (active_) f_(); }

phaser

import std.stdio;
import std.uni;
import std.string;
import core.stdc.stdio;
import std.array;
import std.algorithm;
import std.string;
import std.math;

class Summator

phaser

import std.stdio;
import core.stdc.stdio;
import std.string;
import std.algorithm;

public class Item
{
	public int value;
	public int weight;
}

phaser

using System;

public class CF_755A
{
    static int Main(string[] args)
    {
        uint n = Convert.ToUInt32(Console.ReadLine());
        Console.WriteLine(new CF_755A().solve(n));
        return 0;
    }

phaser

using System;
 
public class CF_285B
{
    public int solve(int[] p, int s, int t)
    {
        s--; t--;
        for (int i = 0; i < p.Length; p[i]--, i++) { }
        int cp = s;
        int numelems = 0;

phaser

Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

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#!/usr/bin/env bash

sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
sudo apt update

sudo update-alternatives --remove-all gcc
sudo update-alternatives --remove-all g++
sudo apt-get install -y gcc-4.8 g++-4.8 gcc-4.9 g++-4.9 gcc-5 g++-5 gcc-6 g++-6 gcc-7 g++-7

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 10

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• Source

Install packages (Ubuntu 18.10)

  sudo apt-get install qemu-kvm qemu virt-manager virt-viewer

Create initial image

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Building DPDK kernel module with DKMS

cd /usr/src
sudo wget https://fast.dpdk.org/rel/dpdk-18.11.1.tar.xz
sudo tar -xvf dpdk-18.11.1.tar.xz

Before doing anything do an in-place build of DPDK. The build system uses some of the things it creates during this build process.

make T=x86_64-native-linuxapp-gcc config

phaser

To make sure that Hyper-V is really disabled run the following command in PowerShell with Administrator rights:

bcdedit /set hypervisorlaunchtype off 

Usually when VirtualBox stops working with a message complaining about VT-x missing then this might solve it.