// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package sync

import (
	"unsafe"
)

// Memmove is exported for SeqAtomicLoad/SeqAtomicTryLoad<T>, which can't
// define it because go_generics can't update the go:linkname annotation.
// Furthermore, go:linkname silently doesn't work if the local name is exported
// (this is of course undocumented), which is why this indirection is
// necessary.
func Memmove(to, from unsafe.Pointer, n uintptr) {
	memmove(to, from, n)
}

//go:linkname memmove runtime.memmove
//go:noescape
func memmove(to, from unsafe.Pointer, n uintptr)