c++ links

clang++ --std=c++20 -O3 -fsanitize=address,undefined -Wall -Wextra -Werror

https://en.cppreference.com/w/cpp/compiler_support

http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines.html

https://godbolt.org

https://hackingcpp.com/index.html

https://en.cppreference.com/w/cpp/language/operator_precedence

https://en.cppreference.com/w/cpp/links/libs