clang-13 - 1:13.0.1-6~deb10u4 main

Clang project is a C, C++, Objective C and Objective C++ front-end
based on the LLVM compiler. Its goal is to offer a replacement to the
GNU Compiler Collection (GCC).
.
Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also
provides most of the support of C++20.