warning: use of bitwise with boolean operands

[Quentin62]

https://cran.r-project.org/web/checks/check_results_Rankcluster.html

Version: 0.94.5
Check: whether package can be installed
Result: WARN
Found the following significant warnings:
RankCluster.cpp:601:17: warning: use of bitwise '&' with boolean operands [-Wbitwise-instead-of-logical]
test.cpp:34:17: warning: use of bitwise '&' with boolean operands [-Wbitwise-instead-of-logical]
Flavors: r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-fedora-clang