contrib/llvm-project/clang/include/clang/Basic/TypeTraits.h

   1 //===--- TypeTraits.h - C++ Type Traits Support Enumerations ----*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 ///
   9 /// \file
  10 /// Defines enumerations for the type traits support.
  11 ///
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_CLANG_BASIC_TYPETRAITS_H
  15 #define LLVM_CLANG_BASIC_TYPETRAITS_H
  16
  17 namespace clang {
  18
  19   /// Names for traits that operate specifically on types.
  20   enum TypeTrait {
  21     UTT_HasNothrowAssign,
  22     UTT_HasNothrowMoveAssign,
  23     UTT_HasNothrowCopy,
  24     UTT_HasNothrowConstructor,
  25     UTT_HasTrivialAssign,
  26     UTT_HasTrivialMoveAssign,
  27     UTT_HasTrivialCopy,
  28     UTT_HasTrivialDefaultConstructor,
  29     UTT_HasTrivialMoveConstructor,
  30     UTT_HasTrivialDestructor,
  31     UTT_HasVirtualDestructor,
  32     UTT_IsAbstract,
  33     UTT_IsAggregate,
  34     UTT_IsArithmetic,
  35     UTT_IsArray,
  36     UTT_IsClass,
  37     UTT_IsCompleteType,
  38     UTT_IsCompound,
  39     UTT_IsConst,
  40     UTT_IsDestructible,
  41     UTT_IsEmpty,
  42     UTT_IsEnum,
  43     UTT_IsFinal,
  44     UTT_IsFloatingPoint,
  45     UTT_IsFunction,
  46     UTT_IsFundamental,
  47     UTT_IsIntegral,
  48     UTT_IsInterfaceClass,
  49     UTT_IsLiteral,
  50     UTT_IsLvalueReference,
  51     UTT_IsMemberFunctionPointer,
  52     UTT_IsMemberObjectPointer,
  53     UTT_IsMemberPointer,
  54     UTT_IsNothrowDestructible,
  55     UTT_IsObject,
  56     UTT_IsPOD,
  57     UTT_IsPointer,
  58     UTT_IsPolymorphic,
  59     UTT_IsReference,
  60     UTT_IsRvalueReference,
  61     UTT_IsScalar,
  62     UTT_IsSealed,
  63     UTT_IsSigned,
  64     UTT_IsStandardLayout,
  65     UTT_IsTrivial,
  66     UTT_IsTriviallyCopyable,
  67     UTT_IsTriviallyDestructible,
  68     UTT_IsUnion,
  69     UTT_IsUnsigned,
  70     UTT_IsVoid,
  71     UTT_IsVolatile,
  72     UTT_HasUniqueObjectRepresentations,
  73     UTT_Last = UTT_HasUniqueObjectRepresentations,
  74     BTT_IsBaseOf,
  75     BTT_IsConvertible,
  76     BTT_IsConvertibleTo,
  77     BTT_IsSame,
  78     BTT_TypeCompatible,
  79     BTT_IsAssignable,
  80     BTT_IsNothrowAssignable,
  81     BTT_IsTriviallyAssignable,
  82     BTT_ReferenceBindsToTemporary,
  83     BTT_Last = BTT_ReferenceBindsToTemporary,
  84     TT_IsConstructible,
  85     TT_IsNothrowConstructible,
  86     TT_IsTriviallyConstructible
  87   };
  88
  89   /// Names for the array type traits.
  90   enum ArrayTypeTrait {
  91     ATT_ArrayRank,
  92     ATT_ArrayExtent
  93   };
  94
  95   /// Names for the "expression or type" traits.
  96   enum UnaryExprOrTypeTrait {
  97     UETT_SizeOf,
  98     /// Used for C's _Alignof and C++'s alignof.
  99     /// _Alignof and alignof return the required ABI alignment.
 100     UETT_AlignOf,
 101     UETT_VecStep,
 102     UETT_OpenMPRequiredSimdAlign,
 103     /// Used for GCC's __alignof.
 104     /// __alignof returns the preferred alignment of a type, the alignment
 105     /// clang will attempt to give an object of the type if allowed by ABI.
 106     UETT_PreferredAlignOf,
 107   };
 108 }
 109
 110 #endif