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 "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 37 template<typename T> 38 struct 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 45 template<typename T> 46 struct 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 53 template<typename T> 54 struct IsUnsignedIntegral 55 : public IntegralConstant<bool, IsIntegral<T>::value && !IsSigned<T>::value> 56 {}; 57 58 #endif // SHARE_VM_METAPROGRAMMING_ISINTEGRAL_HPP