Merge pull request #3033 from heplesser/fix11

Remove last mentions of C++11 as default

Author: heplesser

.github/workflows/nestbuildmatrix.yml

@@ -54,7 +54,7 @@ jobs:
 
       - name: "Run cppcheck..."
         run: |
-          cppcheck --enable=all --language=c++ --std=c++11 -i sli/ --suppressions-list=.cppcheck_suppressions ./
+          cppcheck --enable=all --language=c++ --std=c++17 -i sli/ --suppressions-list=.cppcheck_suppressions ./
 
   rstcheck:
     runs-on: "ubuntu-20.04"

cmake/Platform/JURON_Base.cmake

@@ -151,7 +151,7 @@ Setting up the project
 
    a. *Cmake: Build Directory* to ``${workspaceFolder}/../build``
    #. *Cmake: Install Prefix* to ``${workspaceFolder}/../build/install``
-   #. *Cpp Standard* to ``c++11``
+   #. *Cpp Standard* to ``c++17``
 
 #. In the source directory, open ``.vscode/c_cpp_properties.json``, and add
 

cmake/Platform/JURON_Clang.cmake

@@ -180,7 +180,7 @@ Generic build configuration
 | ``-Dwith-intel-compiler-flags=[OFF|<list;of;flags>]``| User defined flags for the Intel compiler                        |
 |                                                      | [default='-fp-model strict']. Separate multiple flags by ';'.    |
 +------------------------------------------------------+------------------------------------------------------------------+
-| ``-Dwith-cpp-std=[<C++ standard>]``                  | C++ standard to use for compilation [default='c++11'].           |
+| ``-Dwith-cpp-std=[<C++ standard>]``                  | C++ standard to use for compilation [default='c++17'].           |
 +------------------------------------------------------+------------------------------------------------------------------+
 | ``-Dwith-libraries=[OFF|<list;of;libraries>]``       | Link additional libraries [default=OFF]. Give full path. Separate|
 |                                                      | multiple libraries by ';'.                                       |