fill_n.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_ALGORITHM_FILL_N_HPP
#define TETL_ALGORITHM_FILL_N_HPP
 
namespace etl {
 
/// Assigns the given value to the first count elements in the range
/// beginning at `first` if `count > 0`. Does nothing otherwise.
///
/// \returns Iterator one past the last element assigned if `count > 0`, `first`
/// otherwise.
///
/// \ingroup algorithm
template <typename OutputIt, typename Size, typename T>
constexpr auto fill_n(OutputIt first, Size count, T const& value) -> OutputIt
{
    for (auto i = Size{0}; i < count; ++i) {
        *first = value;
        ++first;
    }
    return first;
}
 
} // namespace etl
 
#endif // TETL_ALGORITHM_FILL_N_HPP