Resources

The Standard

• Purchase the C++20 Official Standard. Last we checked, this would cost you CHF198 or ~USD207 or ~₹16.3K
• The latest ISO C++23 Standard Draft on GitHub

References

• C++ Core guidlines
• General unofficial C++ Reference

Surveys

• Results summary: 2022 Annual C++ Developer Survey “Lite” by isocpp.org

C++ Compiler Support

• Across Compilers (Kept up-to-date on best-effort basis)
• C++ Support in GCC
• C++ Support in clang