for_each_n.hpp

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//
// Created by YongGyu Lee on 1/25/24.
//
 
#ifndef VCCC_ALGORITHM_FOR_EACH_N_HPP
#define VCCC_ALGORITHM_FOR_EACH_N_HPP
 
#include <type_traits>
 
#include "vccc/__iterator/iterator_traits/legacy_input_iterator.hpp"
 
namespace vccc {
 
 
template<typename InputIt, typename Size, typename UnaryFunction>
constexpr InputIt for_each_n(InputIt first, Size n, UnaryFunction f) {
  static_assert(LegacyInputIterator<InputIt>::value, "Constraints not satisfied");
  static_assert(std::is_move_constructible<InputIt>::value, "Constraints not satisfied");
 
  for (Size i = 0; i < n; ++first, (void) ++i) {
    f(*first);
  }
 
  return first;
}
 
 
} // namespace vccc
 
#endif // VCCC_ALGORITHM_FOR_EACH_N_HPP