KevinWMatthews · Jul 2, 2019 · Jun 15, 2019 · Jun 15, 2019 · Jun 15, 2019 · Jun 15, 2019
diff --git a/.travis.yml b/.travis.yml
@@ -5,13 +5,13 @@ os: linux
 
 matrix:
   include:
-    - env: COMPILER=g++-4.9
+    - env: COMPILER=g++-5
       addons:
         apt:
           sources:
             - ubuntu-toolchain-r-test
           packages:
-            - g++-4.9
+            - g++-5
 
     - env: COMPILER=clang++-3.8
       addons:
@@ -21,6 +21,7 @@ matrix:
             - llvm-toolchain-precise-3.8
           packages:
             - clang-3.8
+            - g++-5
 
     - env:
       - COMPILER=clang++-7

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 project(exercism CXX)
 
 set(alt_exercise_tree ${CMAKE_CURRENT_SOURCE_DIR}/build_exercises)

diff --git a/docs/INSTALLATION.md b/docs/INSTALLATION.md
@@ -2,7 +2,7 @@
 
 The C++ language track requires that you have the following software
 installed on your system:
-* a modern C++11 compiler
+* a modern C++14 compiler
 * the CMake cross-platform build system
 
 We use [Catch2](https://github.com/catchorg/Catch2) for testing, which is a
@@ -13,15 +13,15 @@ issues setting it up you will find many helpful resources online.
 
 Many IDE's, including Microsoft's Visual Studio, Apple's Xcode, and JetBrains'
 CLion bundle a compiler and CMake together, so you should only need to install
-the IDE. 
+the IDE.
 
-### A Modern C++11 Compiler
+### A Modern C++14 Compiler
 
-This language track requires a compiler with [C++11](http://en.wikipedia.org/wiki/C%2B%2B11)
-support, which was released in 2011. All major compilers released in the last few years should
+This language track requires a compiler with [C++14](http://en.wikipedia.org/wiki/C%2B%2B14)
+support, which was released in 2014. All major compilers released in the last few years should
 be compatible, so as long as you are on a fairly recent version you should be fine.
-Specifically, GCC version 5.1 or later, Clang version 3.8 or later, or Visual
-Studio 2015 or later.
+Specifically, GCC version 5 or later, Clang version 3.8 or later, or Visual
+Studio 2017 or later.
 
 ### CMake
 
@@ -45,7 +45,7 @@ systems.  If you encounter any problems with the supplied CMake recipe,
 please [report the issue](https://github.com/exercism/cpp/issues) so we can
 improve the CMake support.
 
-[CMake 3.1.3 or later](http://www.cmake.org/) is required to use the provided build recipe.
+[CMake 3.5.1 or later](http://www.cmake.org/) is required to use the provided build recipe.
 
 ## Windows
 
@@ -64,8 +64,9 @@ You should be able to use other integrated IDE's such as JetBrains' CLion in a s
 
 ## Linux
 
-All recent Linux distribution releases have compatible C++11 compilers, you
-should be able to install it using your package manager.
+All recent Linux distribution releases have compatible C++14 compilers, you
+should be able to install it using your package manager. The versions we support
+are the default installed versions in Ubuntu LTS 16.04.
 
 For example, on Ubuntu you would use the following command to install gcc.
 
@@ -75,18 +76,8 @@ $ gcc --version
 ```
 
 If you are on an older distribution, you might not have a compiler that
-supports C++11. In that case you will need to install it through an alternate
-method. For example, Ubuntu 15.10 or earlier don't provide compatible compilers
-in the package manager, so if you are using that version you will need to use
-the following:
-
-```bash
-$ sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
-$ sudo apt-get -qq -d update
-$ sudo apt-get -qq install g++-5
-$ # make g++ 5 the default g++ executable
-$ sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-5 90
-```
+supports C++14. If that's the case, you'll need to work with your distribution
+to figure out how to install the minimum compiler version.
 
 ## MacOS
 

diff --git a/exercises/acronym/CMakeLists.txt b/exercises/acronym/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/all-your-base/CMakeLists.txt b/exercises/all-your-base/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/allergies/CMakeLists.txt b/exercises/allergies/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/allergies/allergies_test.cpp b/exercises/allergies/allergies_test.cpp
@@ -82,7 +82,7 @@ TEST_CASE("allergic_to_eggs_and_other_stuff")
 TEST_CASE("allergic_to_nothing")
 {
     allergies::allergy_test score(0);
-    const std::unordered_set<std::string> no_allergies;
+    const std::unordered_set<std::string> no_allergies{};
 
     REQUIRE(no_allergies == score.get_allergies());
 }

diff --git a/exercises/anagram/CMakeLists.txt b/exercises/anagram/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/armstrong-numbers/CMakeLists.txt b/exercises/armstrong-numbers/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )
@@ -50,4 +50,4 @@ if(${MSVC})
 endif()
 
 # Run the tests on every build
-add_custom_target(test_${exercise} ALL DEPENDS ${exercise} COMMAND ${exercise})
+add_custom_target(test_${exercise} ALL DEPENDS ${exercise} COMMAND ${exercise})
diff --git a/exercises/atbash-cipher/CMakeLists.txt b/exercises/atbash-cipher/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/beer-song/CMakeLists.txt b/exercises/beer-song/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/binary-search-tree/CMakeLists.txt b/exercises/binary-search-tree/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/binary-search/CMakeLists.txt b/exercises/binary-search/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/binary/CMakeLists.txt b/exercises/binary/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/bob/CMakeLists.txt b/exercises/bob/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/clock/CMakeLists.txt b/exercises/clock/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/crypto-square/CMakeLists.txt b/exercises/crypto-square/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/difference-of-squares/CMakeLists.txt b/exercises/difference-of-squares/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )

diff --git a/exercises/etl/CMakeLists.txt b/exercises/etl/CMakeLists.txt
@@ -2,7 +2,7 @@
 get_filename_component(exercise ${CMAKE_CURRENT_SOURCE_DIR} NAME)
 
 # Basic CMake project
-cmake_minimum_required(VERSION 3.1.3)
+cmake_minimum_required(VERSION 3.5.1)
 
 # Name the project after the exercise
 project(${exercise} CXX)
@@ -27,7 +27,7 @@ else()
 endif()
 
 set_target_properties(${exercise} PROPERTIES
-    CXX_STANDARD 11
+    CXX_STANDARD 14
     CXX_STANDARD_REQUIRED OFF
     CXX_EXTENSIONS OFF
 )