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/// \file
// Range v3 library
//
// Copyright Eric Niebler 2014-present
//
// Use, modification and distribution is subject to the
// Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// Project home: https://github.com/ericniebler/range-v3
//
#ifndef RANGES_V3_ALGORITHM_FOR_EACH_HPP
#define RANGES_V3_ALGORITHM_FOR_EACH_HPP
#include <functional>
#include <range/v3/range_fwd.hpp>
#include <range/v3/algorithm/result_types.hpp>
#include <range/v3/functional/identity.hpp>
#include <range/v3/functional/invoke.hpp>
#include <range/v3/functional/reference_wrapper.hpp>
#include <range/v3/iterator/traits.hpp>
#include <range/v3/range/access.hpp>
#include <range/v3/range/concepts.hpp>
#include <range/v3/range/dangling.hpp>
#include <range/v3/range/traits.hpp>
#include <range/v3/utility/static_const.hpp>
#include <range/v3/detail/prologue.hpp>
namespace ranges
{
/// \addtogroup group-algorithms
/// @{
template<typename I, typename F>
using for_each_result = detail::in_fun_result<I, F>;
RANGES_FUNC_BEGIN(for_each)
/// \brief function template \c for_each
template(typename I, typename S, typename F, typename P = identity)(
requires input_iterator<I> AND sentinel_for<S, I> AND
indirectly_unary_invocable<F, projected<I, P>>)
constexpr for_each_result<I, F> RANGES_FUNC(for_each)(I first, S last, F fun, P proj = P{})
{
for(; first != last; ++first)
{
invoke(fun, invoke(proj, *first));
}
return {detail::move(first), detail::move(fun)};
}
/// \overload
template(typename Rng, typename F, typename P = identity)(
requires input_range<Rng> AND
indirectly_unary_invocable<F, projected<iterator_t<Rng>, P>>)
constexpr for_each_result<borrowed_iterator_t<Rng>, F> //
RANGES_FUNC(for_each)(Rng && rng, F fun, P proj = P{})
{
return {(*this)(begin(rng), end(rng), ref(fun), detail::move(proj)).in,
detail::move(fun)};
}
RANGES_FUNC_END(for_each)
namespace cpp20
{
using ranges::for_each;
using ranges::for_each_result;
} // namespace cpp20
/// @}
} // namespace ranges
#include <range/v3/detail/epilogue.hpp>
#endif
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