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Telegram/ThirdParty/range-v3/include/range/v3/numeric/iota.hpp

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+/// \file
+// Range v3 library
+//
+//  Copyright Eric Niebler 2013-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_NUMERIC_IOTA_HPP
+#define RANGES_V3_NUMERIC_IOTA_HPP
+
+#include <range/v3/iterator/concepts.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-numerics
+    /// @{
+    struct iota_fn
+    {
+        template(typename O, typename S, typename T)(
+            requires output_iterator<O, T const &> AND sentinel_for<S, O> AND
+                weakly_incrementable<T>)
+        O operator()(O first, S last, T val) const
+        {
+            for(; first != last; ++first, ++val)
+                *first = detail::as_const(val);
+            return first;
+        }
+
+        template(typename Rng, typename T)(
+            requires output_range<Rng, T const &> AND weakly_incrementable<T>)
+        borrowed_iterator_t<Rng> operator()(Rng && rng, T val) const //
+        {
+            return (*this)(begin(rng), end(rng), detail::move(val));
+        }
+    };
+
+    RANGES_INLINE_VARIABLE(iota_fn, iota)
+    /// @}
+} // namespace ranges
+
+#include <range/v3/detail/epilogue.hpp>
+
+#endif