C++ 20 (2a) New Features - Migrating to C++20

The video tutorial discusses the migration to C20, focusing on the current state of compiler support as of the end of 2019. It highlights that most compilers lack full support for C20, with GCC and Clang offering the best, albeit experimental, support. The video examines specific features like concepts, modules, and coroutines, noting partial support in various compilers. It also covers C20 library features, pointing out that some, like text formatting, are not supported yet. The tutorial concludes that migration to C20 is not feasible at the moment due to limited compiler support, but provides guidance on using current compilers to determine available features.

Which compilers are noted for having the best support for C20?

• Borland and Turbo

• GCC and Clang

• Microsoft Visual C and Intel

• Sun Studio and Oracle

In which versions do GCC and Clang provide experimental support for concepts?

• GCC 8 and Clang 8

• GCC 9 and Clang 9

• GCC 10 and Clang 10

• GCC 11 and Clang 11

Which compiler has partial support for modules starting from version 8?

• GCC

• Intel

• Clang

• Microsoft Visual C

What is the status of support for ranges in C20 across compilers?

• Supported in Microsoft Visual C

• Fully supported in GCC

• No support in any compiler

• Partially supported in Clang

As of the end of 2019, what is the main reason migration to C20 is not feasible?

• Lack of developer interest

• Insufficient compiler support

• High cost of migration

• Complexity of C20 features