utils.hpp

 
//
// Copyright 2024 Realm Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
 
#ifndef CPPREALM_BRIDGE_UTILS_HPP
#define CPPREALM_BRIDGE_UTILS_HPP
 
#include <functional>
#include <memory>
#include <string_view>
#include <string>
#include <type_traits>
 
#ifdef _WIN32
 
#include <WinSock2.h>
#include <intrin.h>
#include <BaseTsd.h>
 
#undef max // collides with numeric_limits::max called later in this header file
#undef min // collides with numeric_limits::min called later in this header file
#include <safeint.h>
 
#endif // _WIN32
 
#if __has_include(<cpprealm/internal/bridge/bridge_types.hpp>)
#include <cpprealm/internal/bridge/bridge_types.hpp>
#endif
 
namespace realm::internal::bridge {
    template <typename Left, typename Right, typename = void>
    struct LayoutCheck;
    template <typename Left, typename Right>
    struct LayoutCheck<Left, Right, std::enable_if_t<(sizeof(Left) == sizeof(Right) && alignof(Left) == alignof(Right))>> : std::true_type {
    };
}
 
namespace realm::internal {
    template <typename... Ts, typename... Us, size_t... Is>
    auto constexpr zip_tuples_impl(const std::tuple<Ts...>& tuple1, const std::tuple<Us...>& tuple2, std::index_sequence<Is...>) {
        return std::make_tuple(std::make_pair(std::get<Is>(tuple1), std::get<Is>(tuple2))...);
    }
 
    template <typename... Ts, typename... Us>
    auto constexpr zip_tuples(const std::tuple<Ts...>& tuple1, const std::tuple<Us...>& tuple2) {
        static_assert(sizeof...(Ts) == sizeof...(Us), "Tuples must have the same size");
        return zip_tuples_impl(tuple1, tuple2, std::index_sequence_for<Ts...>());
    }
 
    template <typename T, std::size_t N, std::size_t... Is>
    auto constexpr array_to_tuple_impl(const std::array<T, N>& arr, std::index_sequence<Is...>) {
        return std::make_tuple(arr[Is]...);
    }
 
    template <typename T, std::size_t N>
    auto constexpr array_to_tuple(const std::array<T, N>& arr) {
        return array_to_tuple_impl(arr, std::make_index_sequence<N>{});
    }
}
 
#endif //CPPREALM_BRIDGE_UTILS_HPP