libclang-common-9-dev - 1:9.0.1-16.1 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).
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Clang implements all of the ISO C++ 1998, 11 and 14 standards and also
provides most of the support of C++17.
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This package contains the Clang generic headers and some libraries
(profiling, etc).