unable to apply std::set_intersection on different types of structs with a common field

Question

I am trying to use use std::set_intersection to find common elements between 2 completely different types of data structures that have a common binding \'na

Answer 1

use std::copy_if and lambda that searches inside vectorB using std::binary_search be sure to sort using the same predicate you will give to binary_search

this solves similar problem: elegant way to remove all elements of a vector that are contained in another vector?