language: cpp

dist: xenial

matrix:
  include:
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-5
      env: COMPILER=g++-5 CXXSTD=11  
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-6
      env: COMPILER=g++-6 CXXSTD=11
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-7
      env: COMPILER=g++-7 CXXSTD=11
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-8
      env: COMPILER=g++-8 CXXSTD=11
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-4.9
      env: COMPILER=g++-4.9 CXXSTD=11
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-4.8
      env: COMPILER=g++-4.8 CXXSTD=11
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-precise-3.5
             - ubuntu-toolchain-r-test
          packages:
             - clang++-3.5
             - libc++-dev
      env: COMPILER=clang++-3.5 CXXSTD=11
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-precise-3.6
             - ubuntu-toolchain-r-test
          packages:
             - clang++-3.6
             - libc++-dev
      env: COMPILER=clang++-3.6 CXXSTD=11
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-precise-3.7
             - ubuntu-toolchain-r-test
          packages:
             - clang++-3.7
             - libc++-dev
      env: COMPILER=clang++-3.7 CXXSTD=11
    - compiler: clang
      addons:
        apt:
          sources:
            - sourceline: "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-3.8 main"
              key_url: "http://apt.llvm.org/llvm-snapshot.gpg.key"
            - ubuntu-toolchain-r-test
          packages:
             - clang++-3.8
             - libc++-dev
      env: COMPILER=clang++-3.8 CXXSTD=11
    - compiler: clang
      addons:
        apt:
          sources:
            - sourceline: "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-3.9 main"
              key_url: "http://apt.llvm.org/llvm-snapshot.gpg.key"
            - ubuntu-toolchain-r-test
          packages:
            - clang++-3.9
            - libc++-dev
      env: COMPILER=clang++-3.9 CXXSTD=11
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-xenial-4.0
             - ubuntu-toolchain-r-test
          packages:
             - clang++-4.0
             - libc++-dev
      env: COMPILER=clang++-4.0 CXXSTD=11
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-xenial-5.0
             - ubuntu-toolchain-r-test
          packages:
             - clang++-5.0
             - libc++-dev
      env: COMPILER=clang++-5.0 CXXSTD=11             
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-xenial-6.0
             - ubuntu-toolchain-r-test
          packages:
             - clang++-6.0
             - libc++-dev
      env: COMPILER=clang++-6.0 CXXSTD=11             

    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-5
      env: COMPILER=g++-5 CXXSTD=14
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-6
      env: COMPILER=g++-6 CXXSTD=14
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-7
      env: COMPILER=g++-7 CXXSTD=14
    - compiler: gcc
      addons:
        apt:
          sources:
             - ubuntu-toolchain-r-test
          packages:
             - g++-8
      env: COMPILER=g++-8 CXXSTD=14      
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-precise-3.5
             - ubuntu-toolchain-r-test
          packages:
             - clang++-3.5
             - libc++-dev
      env: COMPILER=clang++-3.5 CXXSTD=14
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-precise-3.6
             - ubuntu-toolchain-r-test
          packages:
             - clang++-3.6
             - libc++-dev
      env: COMPILER=clang++-3.6 CXXSTD=14
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-precise-3.7
             - ubuntu-toolchain-r-test
          packages:
             - clang++-3.7
             - libc++-dev
      env: COMPILER=clang++-3.7 CXXSTD=14
    - compiler: clang
      addons:
        apt:
          sources:
            - sourceline: "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-3.8 main"
              key_url: "http://apt.llvm.org/llvm-snapshot.gpg.key"
            - ubuntu-toolchain-r-test
          packages:
             - clang++-3.8
             - libc++-dev
      env: COMPILER=clang++-3.8 CXXSTD=14
    - compiler: clang
      addons:
        apt:
          sources:
            - sourceline: "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-3.9 main"
              key_url: "http://apt.llvm.org/llvm-snapshot.gpg.key"
            - ubuntu-toolchain-r-test
          packages:
            - clang++-3.9
            - libc++-dev
      env: COMPILER=clang++-3.9 CXXSTD=14
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-xenial-4.0
             - ubuntu-toolchain-r-test
          packages:
             - clang++-4.0
             - libc++-dev
      env: COMPILER=clang++-4.0 CXXSTD=14
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-xenial-5.0
             - ubuntu-toolchain-r-test
          packages:
             - clang++-5.0
             - libc++-dev
      env: COMPILER=clang++-5.0 CXXSTD=14      
    - compiler: clang
      addons:
        apt:
          sources:
             - llvm-toolchain-xenial-6.0
             - ubuntu-toolchain-r-test
          packages:
             - clang++-6.0
             - libc++-dev
      env: COMPILER=clang++-6.0 CXXSTD=14      
      
before_install:
  - sudo apt update
  - sudo apt install -y apt-transport-https ca-certificates gnupg software-properties-common 
  - curl -L https://apt.kitware.com/keys/kitware-archive-latest.asc | sudo apt-key add -
  - sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ xenial main' 
  - sudo apt update

install:
  - if [ "$CXX" = "clang++" ]; then export CXX="$COMPILER -stdlib=libc++"; fi
  - if [ "$CXX" = "g++" ]; then export CXX="$COMPILER"; fi
  - sudo apt install -y cmake

script:
  - /usr/bin/cmake -B build -S . "-DCMAKE_CXX_STANDARD=$CXXSTD"
  - /usr/bin/cmake --build build
  - /usr/bin/cmake --build build --target test