clang/lib/AST/Interp/Primitives.h

   1 //===------ Primitives.h - Types for the constexpr VM -----------*- 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 // Utilities and helper functions for all primitive types:
  10 //  - Integral
  11 //  - Floating
  12 //  - Boolean
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #ifndef LLVM_CLANG_AST_INTERP_PRIMITIVES_H
  17 #define LLVM_CLANG_AST_INTERP_PRIMITIVES_H
  18
  19 #include "clang/AST/ComparisonCategories.h"
  20
  21 namespace clang {
  22 namespace interp {
  23
  24 /// Helper to compare two comparable types.
  25 template <typename T> ComparisonCategoryResult Compare(const T &X, const T &Y) {
  26   if (X < Y)
  27     return ComparisonCategoryResult::Less;
  28   if (X > Y)
  29     return ComparisonCategoryResult::Greater;
  30   return ComparisonCategoryResult::Equal;
  31 }
  32
  33 } // namespace interp
  34 } // namespace clang
  35
  36 #endif