error: invalid value 'c++23' in '-std=c++23' note: use 'c++98' or 'c++03' for 'ISO C++ 1998 with amendments' standard note: use 'gnu++98' or 'gnu++03' for 'ISO C++ 1998 with amendments and GNU extensions' standard note: use 'c++11' for 'ISO C++ 2011 with amendments' standard note: use 'gnu++11' for 'ISO C++ 2011 with amendments and GNU extensions' standard note: use 'c++14' for 'ISO C++ 2014 with amendments' standard note: use 'gnu++14' for 'ISO C++ 2014 with amendments and GNU extensions' standard note: use 'c++17' for 'ISO C++ 2017 with amendments' standard note: use 'gnu++17' for 'ISO C++ 2017 with amendments and GNU extensions' standard note: use 'c++20' for 'ISO C++ 2020 DIS' standard note: use 'gnu++20' for 'ISO C++ 2020 DIS with GNU extensions' standard note: use 'c++2b' for 'Working draft for ISO C++ 2023 DIS' standard note: use 'gnu++2b' for 'Working draft for ISO C++ 2023 DIS with GNU extensions' standard