| /* |
| * Copyright (c) 2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_MISC_CAST_H__ |
| #define __ARM_COMPUTE_MISC_CAST_H__ |
| |
| #include "arm_compute/core/Error.h" |
| |
| namespace arm_compute |
| { |
| namespace utils |
| { |
| namespace cast |
| { |
| /** Polymorphic cast between two types |
| * |
| * @warning Will throw an exception if cast cannot take place |
| * |
| * @tparam Target Target to cast type |
| * @tparam Source Source from cast type |
| * |
| * @param[in] v Value to cast |
| * |
| * @return The casted value |
| */ |
| template <typename Target, typename Source> |
| inline Target polymorphic_cast(Source *v) |
| { |
| if(dynamic_cast<Target>(v) == nullptr) |
| { |
| throw std::bad_cast(); |
| } |
| return static_cast<Target>(v); |
| } |
| |
| /** Polymorphic down cast between two types |
| * |
| * @warning Will assert if cannot take place |
| * |
| * @tparam Target Target to cast type |
| * @tparam Source Source from cast type |
| * |
| * @param[in] v Value to cast |
| * |
| * @return The casted value |
| */ |
| template <typename Target, typename Source> |
| inline Target polymorphic_downcast(Source *v) |
| { |
| ARM_COMPUTE_ERROR_ON(dynamic_cast<Target>(v) != static_cast<Target>(v)); |
| return static_cast<Target>(v); |
| } |
| |
| /** Polymorphic cast between two unique pointer types |
| * |
| * @warning Will throw an exception if cast cannot take place |
| * |
| * @tparam Target Target to cast type |
| * @tparam Source Source from cast type |
| * @tparam Deleter Deleter function type |
| * |
| * @param[in] v Value to cast |
| * |
| * @return The casted value |
| */ |
| template <typename Target, typename Source, typename Deleter> |
| std::unique_ptr<Target, Deleter> polymorphic_cast_unique_ptr(std::unique_ptr<Source, Deleter> &&v) |
| { |
| if(dynamic_cast<Target *>(v.get()) == nullptr) |
| { |
| throw std::bad_cast(); |
| } |
| auto r = static_cast<Target *>(v.release()); |
| return std::unique_ptr<Target, Deleter>(r, std::move(v.get_deleter())); |
| } |
| |
| /** Polymorphic down cast between two unique pointer types |
| * |
| * @warning Will assert if cannot take place |
| * |
| * @tparam Target Target to cast type |
| * @tparam Source Source from cast type |
| * @tparam Deleter Deleter function type |
| * |
| * @param[in] v Value to cast |
| * |
| * @return The casted value |
| */ |
| template <typename Target, typename Source, typename Deleter> |
| std::unique_ptr<Target, Deleter> polymorphic_downcast_unique_ptr(std::unique_ptr<Source, Deleter> &&v) |
| { |
| ARM_COMPUTE_ERROR_ON(dynamic_cast<Target *>(v.get()) != static_cast<Target *>(v.get())); |
| auto r = static_cast<Target *>(v.release()); |
| return std::unique_ptr<Target, Deleter>(r, std::move(v.get_deleter())); |
| } |
| } // namespace cast |
| } // namespace utils |
| } // namespace arm_compute |
| #endif /* __ARM_COMPUTE_MISC_CAST_H__ */ |