concepts_container.h

/*********************************************************************************************************************************************/
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/*  Copyright (c) SILVERCODERS Ltd, http://silvercoders.com                                                                                  */
/*  Project homepage: https://github.com/docwire/docwire                                                                                     */
/*                                                                                                                                           */
/*  SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-DocWire-Commercial                                                                  */
/*********************************************************************************************************************************************/
 
#ifndef DOCWIRE_CONCEPTS_CONTAINER_H
#define DOCWIRE_CONCEPTS_CONTAINER_H
 
#include <iterator>
#include <type_traits>
 
namespace docwire
{
 
template<typename T>
concept container = requires(const T& t) {
    { std::begin(t) } -> std::input_iterator;
    { std::end(t) } -> std::input_iterator;
    requires !std::is_same_v<std::remove_cvref_t<T>, std::remove_cvref_t<typename std::iterator_traits<decltype(std::begin(t))>::value_type>>;
};
 
} // namespace docwire
 
#endif // DOCWIRE_CONCEPTS_CONTAINER_H