llvm/llvm/include/llvm/Support/VersionTuple.h

//===- VersionTuple.h - Version Number Handling -----------------*- 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
//
//===----------------------------------------------------------------------===//
///
/// \file
/// Defines the llvm::VersionTuple class, which represents a version in
/// the form major[.minor[.subminor]].
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_VERSIONTUPLE_H
#define LLVM_SUPPORT_VERSIONTUPLE_H

#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/ADT/Hashing.h"
#include <optional>
#include <string>
#include <tuple>

namespace llvm {
template <typename HasherT, llvm::endianness Endianness> class HashBuilder;
class raw_ostream;
class StringRef;

/// Represents a version number in the form major[.minor[.subminor[.build]]].
class VersionTuple { … };

/// Print a version number.
raw_ostream &operator<<(raw_ostream &Out, const VersionTuple &V);

// Provide DenseMapInfo for version tuples.
template <> struct DenseMapInfo<VersionTuple> { … };

} // end namespace llvm
#endif // LLVM_SUPPORT_VERSIONTUPLE_H