template<class InputIterator, class Predicate>
constexpr inline
bool any_of(InputIterator first, InputIterator last, Predicate pred)

template <class ExecutionPolicy, class ForwardIterator, class Predicate>
bool any_of(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, Predicate pred);

#include <iostream>
#include <algorithm>

int main()
{
    auto list = {'D', 'i', 'R', 'f'};

    auto any_upper = std::any_of(std::begin(list), std::end(list), [](auto s) { return std::isupper(s); });
    auto any_lower = std::any_of(std::begin(list), std::end(list), [](auto s) { return std::islower(s); });
    auto any_digit = std::any_of(std::begin(list), std::end(list), [](auto s) { return std::isdigit(s); });

    std::cout << std::boolalpha;
    std::cout << any_upper << std::endl;
    std::cout << any_lower << std::endl;
    std::cout << any_digit << std::endl;
    return 0;
}

true
true
false