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0001 /* 0002 SPDX-FileCopyrightText: 2019 Daniel Vrátil <dvratil@kde.org> 0003 0004 SPDX-License-Identifier: LGPL-2.0-or-later 0005 */ 0006 0007 #ifndef KASYNC_TRAITS_H_ 0008 #define KASYNC_TRAITS_H_ 0009 0010 #include <utility> 0011 0012 namespace KAsync { 0013 0014 namespace traits { 0015 0016 template<typename T, typename = void> 0017 struct isContainer { 0018 enum { value = 0 }; 0019 }; 0020 0021 template<typename T> 0022 struct isContainer<T, std::void_t<decltype(std::declval<T&>().begin()), 0023 decltype(std::declval<T&>().end()), 0024 typename T::value_type>> 0025 { 0026 enum { value = 1 }; 0027 }; 0028 0029 0030 0031 } // namespace traits 0032 } // namespace KAsync 0033 0034 #endif