Found the following significant warnings:
  /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/BH/include/boost/graph/detail/adjacency_list.hpp:2271:27: warning: variable 'p' is uninitialized when passed as a const reference argument here [-Wuninitialized-const-reference]
See ‘/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/isqg.Rcheck/00install.out’ for details.
* used C++ compiler: ‘Debian clang version 15.0.6’
Specified C++14: please drop specification unless essential
Specified C++14: please drop specification unless essential
Found the following significant warnings:
  /data/gannet/ripley/R/test-clang/BH/include/boost/graph/detail/adjacency_list.hpp:2271:27: warning: variable 'p' is uninitialized when passed as a const reference argument here [-Wuninitialized-const-reference]
See ‘/data/gannet/ripley/R/packages/tests-clang/isqg.Rcheck/00install.out’ for details.
* used C++ compiler: ‘clang version 16.0.0’
Specified C++14: please drop specification unless essential
Specified C++14: please drop specification unless essential
Specified C++14: please drop specification unless essential
Specified C++14: please drop specification unless essential