LLVM
20.0.0git
include
llvm
ADT
identity.h
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//===- llvm/ADT/Identity.h - Provide std::identity from C++20 ---*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides an implementation of std::identity from C++20.
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//
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// No library is required when using these functions.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ADT_IDENTITY_H
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#define LLVM_ADT_IDENTITY_H
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namespace
llvm
{
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// Similar to `std::identity` from C++20.
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template
<
class
Ty>
struct
identity
{
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using
is_transparent
= void;
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using
argument_type
= Ty;
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Ty &
operator()
(Ty &self)
const
{
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return
self;
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}
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const
Ty &
operator()
(
const
Ty &self)
const
{
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return
self;
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}
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};
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}
// end namespace llvm
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#endif
// LLVM_ADT_IDENTITY_H
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition:
AddressRanges.h:18
llvm::identity
Definition:
identity.h:22
llvm::identity::argument_type
Ty argument_type
Definition:
identity.h:24
llvm::identity::operator()
const Ty & operator()(const Ty &self) const
Definition:
identity.h:29
llvm::identity::is_transparent
void is_transparent
Definition:
identity.h:23
llvm::identity::operator()
Ty & operator()(Ty &self) const
Definition:
identity.h:26
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