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Programming-Idioms

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  • C++

Idiom #242 Iterate over a set

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

#include <algorithm>
std::for_each(x.begin(), x.end(), f);
for (auto e : x)
    f(e);

C++11 or later

If f is expected to change e as a side effect, replace auto with auto&
(doseq [e x]
  (f e))
New implementation...
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programming-idioms.org 
std::for_each(x.begin(), x.end(), f);
for (auto e : x)
    f(e);
(doseq [e x]
  (f e))
foreach(var e in x)
    f(e);
x.forEach(f);
for e := range x {
	f(e)
}
let v = x.values();
let result = v.next();
while (!result.done) {
  f(result.value);
  result = v.next();
}
x.forEach(f);
for (const e of x) {
	f(e);
}
for(T e: x) {
  f(e);
}
for e in x do f(e);
f($_) for @x;
list(map(lambda e: f(e), x))
for e in x:
    f(e)
for e in x: f(e)
x.each { |e| f(e) }
for item in &x {
    f(item);
}