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a6648ee8c3
* enh(Logger): simplified logging macros. * enh(Delegate): Simplify code with constexpr and std::conditional_t. * enh(NumericString): Simplify code with constexpr and std::is_signed_v. * enh(MetaProgramming): Simplify code with C++17 equivalents. * enh(Tuple): Simplify code with C++17 equivalents. * enh(TypeList): Remove metaprogramming features that are not used. * enh(Modules): Remove obsolete Foundation functionality * enh(Foundation): Compile and run deprecated functionality only when POCO_TEST_DEPRECATED is enabled. Update comments for deprecated functionality. * fix(Modules): Add missing conditional forward declarations for Foundation.
62 lines
1.2 KiB
C++
62 lines
1.2 KiB
C++
//
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// MetaProgramming.h
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//
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// Library: Foundation
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// Package: Core
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// Module: MetaProgramming
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//
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// Common definitions useful for Meta Template Programming
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//
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// Copyright (c) 2006-2025, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_MetaProgramming_INCLUDED
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#define Foundation_MetaProgramming_INCLUDED
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#include "Poco/Foundation.h"
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#include <type_traits>
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namespace Poco {
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template <typename T>
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struct IsReference
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/// Use this struct to determine if a template type is a reference.
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{
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static constexpr int VALUE = std::is_reference_v<T> ? 1 : 0;
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};
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template <typename T>
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struct IsConst
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/// Use this struct to determine if a template type is a const type.
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{
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static constexpr int VALUE = std::is_const_v<std::remove_reference_t<T>> ? 1 : 0;
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};
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template <typename T>
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struct TypeWrapper
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/// Use the type wrapper if you want to decouple constness and references from template types.
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{
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private:
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using BaseType = std::remove_cv_t<std::remove_reference_t<T>>;
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public:
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using TYPE = BaseType;
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using CONSTTYPE = const BaseType;
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using REFTYPE = BaseType&;
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using CONSTREFTYPE = const BaseType&;
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};
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} // namespace Poco
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#endif // Foundation_MetaProgramming_INCLUDED
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