File size: 1,745 Bytes
b024d42 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | // SPDX-License-Identifier: MIT
// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
#pragma once
#include <iterator>
#include <type_traits>
#include <utility>
// ranges implementation are not intented to be used by user
// TODO: do we need this?
namespace ck_tile {
template <typename T>
using iter_value_t = typename std::iterator_traits<remove_cvref_t<T>>::value_type;
template <typename T>
using iter_reference_t = decltype(*std::declval<T&>());
template <typename T>
using iter_difference_t = typename std::iterator_traits<remove_cvref_t<T>>::difference_type;
namespace ranges {
template <typename R>
using iterator_t = decltype(std::begin(std::declval<R&>()));
template <typename R>
using sentinel_t = decltype(std::end(std::declval<R&>()));
template <typename R>
using range_size_t = decltype(std::size(std::declval<R&>()));
template <typename R>
using range_difference_t = ck_tile::iter_difference_t<ranges::iterator_t<R>>;
template <typename R>
using range_value_t = iter_value_t<ranges::iterator_t<R>>;
template <typename R>
using range_reference_t = iter_reference_t<ranges::iterator_t<R>>;
template <typename T, typename = void>
struct is_range : std::false_type
{
};
template <typename T>
struct is_range<
T,
std::void_t<decltype(std::begin(std::declval<T&>())), decltype(std::end(std::declval<T&>()))>>
: std::true_type
{
};
template <typename T>
inline constexpr bool is_range_v = is_range<T>::value;
template <typename T, typename = void>
struct is_sized_range : std::false_type
{
};
template <typename T>
struct is_sized_range<T, std::void_t<decltype(std::size(std::declval<T&>()))>>
: std::bool_constant<is_range_v<T>>
{
};
} // namespace ranges
} // namespace ck_tile
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