llvm/llvm/include/llvm/TargetParser/Triple.h

//===-- llvm/TargetParser/Triple.h - Target triple helper class--*- 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_TARGETPARSER_TRIPLE_H
#define LLVM_TARGETPARSER_TRIPLE_H

#include "llvm/ADT/Twine.h"
#include "llvm/Support/VersionTuple.h"

// Some system headers or GCC predefined macros conflict with identifiers in
// this file.  Undefine them here.
#undef NetBSD
#undef mips
#undef sparc

namespace llvm {

/// Triple - Helper class for working with autoconf configuration names. For
/// historical reasons, we also call these 'triples' (they used to contain
/// exactly three fields).
///
/// Configuration names are strings in the canonical form:
///   ARCHITECTURE-VENDOR-OPERATING_SYSTEM
/// or
///   ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT
///
/// This class is used for clients which want to support arbitrary
/// configuration names, but also want to implement certain special
/// behavior for particular configurations. This class isolates the mapping
/// from the components of the configuration name to well known IDs.
///
/// At its core the Triple class is designed to be a wrapper for a triple
/// string; the constructor does not change or normalize the triple string.
/// Clients that need to handle the non-canonical triples that users often
/// specify should use the normalize method.
///
/// See autoconf/config.guess for a glimpse into what configuration names
/// look like in practice.
class Triple { … };

} // End llvm namespace


#endif