1 /* 2 * Copyright (c) 2017, 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. 22 * 23 */ 24 25 26 #ifndef SHARE_VM_METAPROGRAMMING_ISINTEGRAL_HPP 27 #define SHARE_VM_METAPROGRAMMING_ISINTEGRAL_HPP 28 29 #include "memory/allocation.hpp" 30 #include "metaprogramming/integralConstant.hpp" 31 #include "metaprogramming/isSigned.hpp" 32 #include "metaprogramming/removeCV.hpp" 33 #include <limits> 34 35 // This metafunction returns true iff the type T (irrespective of CV qualifiers) 36 // is an integral type. Note that this is false for enums. 37 38 template<typename T> 39 struct IsIntegral 40 : public IntegralConstant<bool, std::numeric_limits<typename RemoveCV<T>::type>::is_integer> 41 {}; 42 43 // This metafunction returns true iff the type T (irrespective of CV qualifiers) 44 // is a signed integral type. Note that this is false for enums. 45 46 template<typename T> 47 struct IsSignedIntegral 48 : public IntegralConstant<bool, IsIntegral<T>::value && IsSigned<T>::value> 49 {}; 50 51 // This metafunction returns true iff the type T (irrespective of CV qualifiers) 52 // is an unsigned integral type. Note that this is false for enums. 53 54 template<typename T> 55 struct IsUnsignedIntegral 56 : public IntegralConstant<bool, IsIntegral<T>::value && !IsSigned<T>::value> 57 {}; 58 59 #endif // SHARE_VM_METAPROGRAMMING_ISINTEGRAL_HPP