This is benchmarking code for this CodeReview post: https://codereview.stackexchange.com/questions/272128/checking-whether-a-string-is-a-permutation-of-a-palindrome-in-c20.
There is one benchmark each for array based version and bitset based version. The targets are called array and bitset.
Relevant files are bitset.cpp, array.cpp and benchmark_utils.h