llvm/clang/lib/AST/ByteCode/Integral.h

//===--- Integral.h - Wrapper for numeric types for the VM ------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Defines the VM types and helpers operating on types.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_INTERP_INTEGRAL_H
#define LLVM_CLANG_AST_INTERP_INTEGRAL_H

#include "clang/AST/APValue.h"
#include "clang/AST/ComparisonCategories.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <cstddef>
#include <cstdint>

#include "Primitives.h"

namespace clang {
namespace interp {

APInt;
APSInt;

template <bool Signed> class IntegralAP;

// Helper structure to select the representation.
template <unsigned Bits, bool Signed> struct Repr;
template <> struct Repr<8, false> { … };
template <> struct Repr<16, false> { … };
template <> struct Repr<32, false> { … };
template <> struct Repr<64, false> { … };
template <> struct Repr<8, true> { … };
template <> struct Repr<16, true> { … };
template <> struct Repr<32, true> { … };
template <> struct Repr<64, true> { … };

/// Wrapper around numeric types.
///
/// These wrappers are required to shared an interface between APSint and
/// builtin primitive numeral types, while optimising for storage and
/// allowing methods operating on primitive type to compile to fast code.
template <unsigned Bits, bool Signed> class Integral final { … };

template <unsigned Bits, bool Signed>
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, Integral<Bits, Signed> I) { … }

} // namespace interp
} // namespace clang

#endif