Creating implementation for idiom 242 : Iterate over a set

Idiom

# 242 Iterate over a set

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Call a function f on each element e of a set x.

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Other implementations

(doseq [e x]
  (f e))

#include <algorithm>

std::for_each(x.begin(), x.end(), f);

for (auto e : x)
    f(e);

foreach(var e in x)
    f(e);

x.forEach(f);

for e := range x {
	f(e)
}

x.forEach(f);

let v = x.values();
let result = v.next();
while (!result.done) {
  f(result.value);
  result = v.next();
}

for (const e of x) {
	f(e);
}

import java.util.Set;

for(T e: x) {
  f(e);
}

for e in x do f(e);

f($_) for @x;

for e in x:
    f(e)

list(map(lambda e: f(e), x))

x.each { |e| f(e) }

use std::collections::HashSet;

for item in &x {
    f(item);
}