language: cpp
compiler: gcc
dist: trusty

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

install: 
  - sudo apt-get install -qq g++-6
  - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-6 90

script: 
  #- g++ main.cpp -std=c++17 -o travis_gcc_cpp17
  #- ./travis_gcc_cpp17
  - make reset
  - make
  - make clean