Install libc++-helpers by entering the following commands in the terminal:
sudo apt update sudo apt install libc++-helpers
Description:
LLVM C++ Standard library - build helpers
libc++ is another implementation of the C++ standard library . Features and Goals . * Correctness as defined by the C++ standards. * Fast execution. * Minimal memory use. * Fast compile times. * ABI compatibility with gcc's libstdc++ for some low-level features such as exception objects, rtti and memory allocation. * Extensive unit tests. . This package contains the build helpers (clang++-libc++, etc)
Homepage: http://libcxx.llvm.org/
Version: 6.0-2
Section: universe/libs