Function qwt::perf_and_test_utils::gen_select_queries

pub fn gen_select_queries<T: Unsigned + Into<usize> + Copy>(
    n_queries: usize,
    s: &[T]
) -> Vec<(usize, T)>

Generate a random vector of n_queries for select queries on a given sequence s. A query is generated by selecting a symbol c at random from the text and, then, by selecting a random value in [1, occs[c]], where occs[c] is the number of occurrences of c.