154a1a02bf
Use script and some manual fixup to fix directores names in include guards. Reviewed-by: lfoltan, eosterlund, kbarrett
60 lines
2.3 KiB
C++
60 lines
2.3 KiB
C++
/*
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* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_METAPROGRAMMING_INTEGRALCONSTANT_HPP
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#define SHARE_METAPROGRAMMING_INTEGRALCONSTANT_HPP
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// An Integral Constant is a class providing a compile-time value of an
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// integral type. An Integral Constant is also a nullary metafunction,
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// returning itself. An integral constant object is implicitly
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// convertible to the associated value.
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//
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// A type n is a model of Integral Constant if it meets the following
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// requirements:
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//
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// n::ValueType : The integral type of n::value
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// n::value : An integral constant expression
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// n::type : IsSame<n::type, n>::value is true
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// n::value_type const c = n() : c == n::value
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// A model of the Integer Constant concept.
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// T is an integral type, and is the value_type.
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// v is an integral constant, and is the value.
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template<typename T, T v>
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struct IntegralConstant {
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typedef T value_type;
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static const value_type value = v;
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typedef IntegralConstant<T, v> type;
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operator value_type() { return value; }
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};
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// A bool valued IntegralConstant whose value is true.
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typedef IntegralConstant<bool, true> TrueType;
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// A bool valued IntegralConstant whose value is false.
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typedef IntegralConstant<bool, false> FalseType;
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#endif // SHARE_METAPROGRAMMING_INTEGRALCONSTANT_HPP
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