diff --git a/.travis.yml b/.travis.yml
index c373da2..bb32890 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,23 +23,23 @@ matrix:
     ##########################################################################
 
     # XCode 8.3
-    - env: COMPILER=clang++ BUILD_TYPE=Debug
+    - env: COMPILER=clang++ BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       os: osx
       osx_image: xcode8.3
       compiler: clang
 
-    - env: COMPILER=clang++ BUILD_TYPE=Release
+    - env: COMPILER=clang++ BUILD_TYPE=Release GSL_CXX_STANDARD=14
       os: osx
       osx_image: xcode8.3
       compiler: clang
 
     # XCode 9.1
-    - env: COMPILER=clang++ BUILD_TYPE=Debug
+    - env: COMPILER=clang++ BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       os: osx
       osx_image: xcode9.1
       compiler: clang
 
-    - env: COMPILER=clang++ BUILD_TYPE=Release
+    - env: COMPILER=clang++ BUILD_TYPE=Release GSL_CXX_STANDARD=14
       os: osx
       osx_image: xcode9.1
       compiler: clang
@@ -49,7 +49,7 @@ matrix:
     ##########################################################################
 
     # Clang 3.6
-    - env: COMPILER=clang++-3.6 BUILD_TYPE=Debug
+    - env: COMPILER=clang++-3.6 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &clang36
         apt:
           packages:
@@ -59,11 +59,11 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-precise-3.6
 
-    - env: COMPILER=clang++-3.6 BUILD_TYPE=Release
+    - env: COMPILER=clang++-3.6 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *clang36
 
     # Clang 3.7
-    - env: COMPILER=clang++-3.7 BUILD_TYPE=Debug
+    - env: COMPILER=clang++-3.7 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &clang37
         apt:
           packages:
@@ -73,11 +73,11 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-precise-3.7
 
-    - env: COMPILER=clang++-3.7 BUILD_TYPE=Release
+    - env: COMPILER=clang++-3.7 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *clang37
 
     # Clang 3.8
-    - env: COMPILER=clang++-3.8 BUILD_TYPE=Debug
+    - env: COMPILER=clang++-3.8 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &clang38
         apt:
           packages:
@@ -87,11 +87,11 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-precise-3.8
 
-    - env: COMPILER=clang++-3.8 BUILD_TYPE=Release
+    - env: COMPILER=clang++-3.8 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *clang38
 
     # Clang 3.9
-    - env: COMPILER=clang++-3.9 BUILD_TYPE=Debug
+    - env: COMPILER=clang++-3.9 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &clang39
         apt:
           packages:
@@ -101,11 +101,11 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-precise-3.9
 
-    - env: COMPILER=clang++-3.9 BUILD_TYPE=Release
+    - env: COMPILER=clang++-3.9 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *clang39
 
     # Clang 4.0
-    - env: COMPILER=clang++-4.0 BUILD_TYPE=Debug
+    - env: COMPILER=clang++-4.0 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &clang40
         apt:
           packages:
@@ -115,11 +115,11 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-trusty-4.0
 
-    - env: COMPILER=clang++-4.0 BUILD_TYPE=Release
+    - env: COMPILER=clang++-4.0 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *clang40
 
     # Clang 5.0
-    - env: COMPILER=clang++-5.0 BUILD_TYPE=Debug
+    - env: COMPILER=clang++-5.0 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &clang50
         apt:
           packages:
@@ -131,46 +131,76 @@ matrix:
             - sourceline: 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-5.0 main'
               key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
 
-    - env: COMPILER=clang++-5.0 BUILD_TYPE=Release
-      addons: *clang50    
+    - env: COMPILER=clang++-5.0 BUILD_TYPE=Release GSL_CXX_STANDARD=14
+      addons: *clang50
+
+    # Clang 6.0
+    - env: COMPILER=clang++-6.0 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
+      addons: &clang60
+        apt:
+          packages:
+            - clang-6.0
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-6.0
+            - sourceline: 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-6.0 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+
+    - env: COMPILER=clang++-6.0 BUILD_TYPE=Release GSL_CXX_STANDARD=14
+      addons: *clang60
+
+    # Does not work due to #695
+    # Clang 6.0 c++17
+    #- env: COMPILER=clang++-6.0 BUILD_TYPE=Debug GSL_CXX_STANDARD=17
+    #  addons: *clang60
+
+    #- env: COMPILER=clang++-6.0 BUILD_TYPE=Release GSL_CXX_STANDARD=17
+    #  addons: *clang60
 
     ##########################################################################
     # GCC on Linux
     ##########################################################################
 
     # GCC 5
-    - env: COMPILER=g++-5 BUILD_TYPE=Debug
+    - env: COMPILER=g++-5 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &gcc5
         apt:
           packages: g++-5
           sources:
             - ubuntu-toolchain-r-test
 
-    - env: COMPILER=g++-5 BUILD_TYPE=Release
+    - env: COMPILER=g++-5 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *gcc5
 
     # GCC 6
-    - env: COMPILER=g++-6 BUILD_TYPE=Debug
+    - env: COMPILER=g++-6 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &gcc6
         apt:
           packages: g++-6
           sources:
             - ubuntu-toolchain-r-test
 
-    - env: COMPILER=g++-6 BUILD_TYPE=Release
+    - env: COMPILER=g++-6 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *gcc6
 
     # GCC 7
-    - env: COMPILER=g++-7 BUILD_TYPE=Debug
+    - env: COMPILER=g++-7 BUILD_TYPE=Debug GSL_CXX_STANDARD=14
       addons: &gcc7
         apt:
           packages: g++-7
           sources:
             - ubuntu-toolchain-r-test
 
-    - env: COMPILER=g++-7 BUILD_TYPE=Release
+    - env: COMPILER=g++-7 BUILD_TYPE=Release GSL_CXX_STANDARD=14
       addons: *gcc7
 
+    # GCC 7 c++17 
+    - env: COMPILER=g++-7 BUILD_TYPE=Debug GSL_CXX_STANDARD=17
+      addons: *gcc7
+
+    - env: COMPILER=g++-7 BUILD_TYPE=Release GSL_CXX_STANDARD=17
+      addons: *gcc7
 
 install:
   # Set the ${CXX} variable properly
@@ -230,7 +260,7 @@ before_script:
   # have CMake to generate build files
   - cd "${TRAVIS_BUILD_DIR}"
   - mkdir build && cd build
-  - cmake .. -DCMAKE_BUILD_TYPE=$BUILD_TYPE
+  - cmake .. -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DGSL_CXX_STANDARD=$GSL_CXX_STANDARD
   
 script:
   # build and run tests
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e96fb64..b0de85d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,32 +14,28 @@ if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
   set(GSL_STANDALONE_PROJECT ON)
 endif ()
 
+set(GSL_CXX_STANDARD "14" CACHE STRING "Use c++ standard")
+set(GSL_CXX_STD "cxx_std_${GSL_CXX_STANDARD}")
 
-include(CheckCXXCompilerFlag)
-if (NOT MSVC)
-    CHECK_CXX_COMPILER_FLAG("-std=c++14" COMPILER_SUPPORTS_CXX14)
+if (MSVC)
+    set(GSL_CXX_STD_OPT "-std:c++${GSL_CXX_STANDARD}")
 else()
-    CHECK_CXX_COMPILER_FLAG("-std:c++14" COMPILER_SUPPORTS_CXX14)
+    set(GSL_CXX_STD_OPT "-std=c++${GSL_CXX_STANDARD}")
 endif()
 
 # when minimum version required is 3.8.0 remove if below
 # both branches do exactly the same thing
 if (CMAKE_VERSION VERSION_LESS 3.7.9)
-    if (NOT MSVC)
-        if(COMPILER_SUPPORTS_CXX14)
-            target_compile_options(GSL INTERFACE "-std=c++14")
-        else()
-            message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++14 support. Please use a different C++ compiler.")
-        endif()
+    include(CheckCXXCompilerFlag)
+    CHECK_CXX_COMPILER_FLAG("${GSL_CXX_STD_OPT}" COMPILER_SUPPORTS_CXX_STANDARD)
+
+    if(COMPILER_SUPPORTS_CXX_STANDARD)
+        target_compile_options(GSL INTERFACE "${GSL_CXX_STD_OPT}")
     else()
-        if(COMPILER_SUPPORTS_CXX14)
-            target_compile_options(GSL INTERFACE "-std:c++14")
-        else()
-            message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++14 support. Please use a different C++ compiler.")
-        endif()
+        message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no c++${GSL_CXX_STANDARD} support. Please use a different C++ compiler.")
     endif()
 else ()
-    target_compile_features(GSL INTERFACE cxx_std_14)
+    target_compile_features(GSL INTERFACE "${GSL_CXX_STD}")
     # on *nix systems force the use of -std=c++XX instead of -std=gnu++XX (default)
     set(CMAKE_CXX_EXTENSIONS OFF)
 endif()
@@ -49,6 +45,8 @@ target_compile_definitions(GSL INTERFACE
     $<$<CXX_COMPILER_ID:MSVC>:
         # remove unnecessary warnings about unchecked iterators
         _SCL_SECURE_NO_WARNINGS
+        # remove deprecation warnings about std::uncaught_exception() (from catch)
+        _SILENCE_CXX17_UNCAUGHT_EXCEPTION_DEPRECATION_WARNING
     >
 )
 
diff --git a/appveyor.yml b/appveyor.yml
index d978a5d..2fc8a16 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -12,6 +12,16 @@ image:
   - Visual Studio 2015
   - Visual Studio 2017
 
+environment:
+  matrix:
+    - GSL_CXX_STANDARD: 14
+    - GSL_CXX_STANDARD: 17
+
+matrix:
+    exclude:
+    - image: Visual Studio 2015
+      GSL_CXX_STANDARD: 17
+
 cache:
   - C:\cmake-3.8.0-win32-x86
 
@@ -27,6 +37,7 @@ before_build:
   - ps: |
       mkdir build
       cd build
+
       if ("$env:APPVEYOR_JOB_NAME" -match "Image: Visual Studio 2015") {
           $env:generator="Visual Studio 14 2015"
       } else {
@@ -36,7 +47,7 @@ before_build:
           $env:generator="$env:generator Win64"
       }
       echo generator="$env:generator"
-      cmake .. -G "$env:generator"
+      cmake .. -G "$env:generator" -DGSL_CXX_STANDARD="$env:GSL_CXX_STANDARD"
 
 build_script:
   - cmake --build . --config %CONFIGURATION% -- /m /v:minimal
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 0e08d77..b5e9bb2 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -26,6 +26,10 @@ else()
     add_custom_target(catch)
 endif()
 
+if (MSVC AND (GSL_CXX_STANDARD EQUAL 17))
+    set(GSL_CPLUSPLUS_OPT -Zc:__cplusplus)
+endif()
+
 # this interface adds compile options to how the tests are run
 # please try to keep entries ordered =)
 add_library(gsl_tests_config INTERFACE)
@@ -35,6 +39,7 @@ target_compile_options(gsl_tests_config INTERFACE
         /W4
         /WX
     >
+    ${GSL_CPLUSPLUS_OPT}
     $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:
         -fno-strict-aliasing
         -Wall
@@ -122,6 +127,7 @@ target_compile_options(gsl_tests_config_noexcept INTERFACE
         /W4
         /WX
     >
+    ${GSL_CPLUSPLUS_OPT}
     $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:
         -fno-strict-aliasing
         -fno-exceptions