1/*
2 * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
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23 */
24
25
26#ifndef SHARE_METAPROGRAMMING_ISINTEGRAL_HPP
27#define SHARE_METAPROGRAMMING_ISINTEGRAL_HPP
28
29#include "metaprogramming/integralConstant.hpp"
30#include "metaprogramming/isSigned.hpp"
31#include "metaprogramming/removeCV.hpp"
32#include <limits>
33
34// This metafunction returns true iff the type T (irrespective of CV qualifiers)
35// is an integral type. Note that this is false for enums.
36
37template<typename T>
38struct IsIntegral
39 : public IntegralConstant<bool, std::numeric_limits<typename RemoveCV<T>::type>::is_integer>
40{};
41
42// This metafunction returns true iff the type T (irrespective of CV qualifiers)
43// is a signed integral type. Note that this is false for enums.
44
45template<typename T>
46struct IsSignedIntegral
47 : public IntegralConstant<bool, IsIntegral<T>::value && IsSigned<T>::value>
48{};
49
50// This metafunction returns true iff the type T (irrespective of CV qualifiers)
51// is an unsigned integral type. Note that this is false for enums.
52
53template<typename T>
54struct IsUnsignedIntegral
55 : public IntegralConstant<bool, IsIntegral<T>::value && !IsSigned<T>::value>
56{};
57
58#endif // SHARE_METAPROGRAMMING_ISINTEGRAL_HPP
59