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描述
Initial partial support for C++20 in Envoy
Description:
Context: The latest standard version ratified and published by ISO in December of 2020 as ISO/IEC 14882:2020 (informally known as C++20) —a very significant update over C++17—is widely (but not yet fully) supported by major compilers such as gcc-10 and clang-10. C++20 is already being used as the standard version by some companies and this number will continue to increase as time passes, so an optional C++20 compatible version of Envoy would be needed.
What we're proposing: Supporting C++20 by making the necessary changes, implementing the new features for better compatibility, and replacing deprecated features. We will be making these changes in a modular way as to not make the change so abrupt. We'll be starting with "unpopular" modules (those which are not widely used) and modules which require just a few changes to be fully compatible with C++20.
- Ideas & suggestions on how to split up the PRs would be very helpful. Thanks.