Question

I want to check for all values in an array:

// if the value (unique) is present in an array then do something
if (value == array[size])

Can this be done in one statement without having to call a function or a basic for loop statement?

Answer 1

std::find can do it in one statement, but it’s not as trivial as other languages 🙁

int array[10];
if (end(array) != find(begin(array), end(array), 7)) {
  cout << "Array contains 7!";
}

Or with std::count:

if (int n = count(array, end(array), 7)) {
  cout << "Array contains " << n << " 7s!";
}