Re csv2 code: if you look at the benchmark, they really just loop through each cell, without accessing the content: https://github.com/p-ranav/csv2/blob/master/

Re csv2 code: if you look at the benchmark, they really just loop through each cell, without accessing the content: https://github.com/p-ranav/csv2/blob/master/benchmark/main.cpp#L30 https://github.com/p-ranav/csv2/blob/master/benchmark/main.c... Thus, the code triggered in the benchmark path is on: https://github.com/p-ranav/csv2/blob/master/include/csv2/reader.hpp#L181 https://github.com/p-ranav/csv2/blob/master/include/csv2/rea... and https://github.com/p-ranav/csv2/blob/master/include/csv2/reader.hpp#L125 https://github.com/p-ranav/csv2/blob/master/include/csv2/rea... It doesn't access any of the cell content during the benchmark.