COMP: Bump C++ standard to 17

Required for ITK 5.4.0.

Author: thewtex

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.16.3)
 
 if(NOT CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 14) # Supported values are ``14``, ``17`` and ``20``.
+  set(CMAKE_CXX_STANDARD 17) # Supported values are ``17`` and ``20``.
 endif()
 if(NOT CMAKE_CXX_STANDARD_REQUIRED)
   set(CMAKE_CXX_STANDARD_REQUIRED ON)

evaluate-itk-performance.py

@@ -133,7 +133,7 @@ def build_itk(itk_src, itk_bin):
     subprocess.check_call(['cmake',
         '-G', 'Ninja',
         '-DCMAKE_BUILD_TYPE:STRING=Release',
-        '-DCMAKE_CXX_STANDARD:STRING=11',
+        '-DCMAKE_CXX_STANDARD:STRING=17',
         '-DBUILD_TESTING:BOOL=OFF',
         '-DBUILD_EXAMPLES:BOOL=OFF',
         '-DBUILD_SHARED_LIBS:BOOL=OFF',
@@ -163,7 +163,7 @@ def build_benchmarks(benchmark_src, benchmark_bin,
     subprocess.check_call(['cmake',
         '-G', 'Ninja',
         '-DCMAKE_BUILD_TYPE:STRING=Release',
-        '-DCMAKE_CXX_STANDARD:STRING=11',
+        '-DCMAKE_CXX_STANDARD:STRING=17',
         '-DITK_DIR:PATH=' + itk_bin,
         build_information_arg,
         benchmark_src])