forked from mirrors/gotosocial
a156188b3e
* update dependencies, bump Go version to 1.19 * bump test image Go version * update golangci-lint * update gotosocial-drone-build * sign * linting, go fmt * update swagger docs * update swagger docs * whitespace * update contributing.md * fuckin whoopsie doopsie * linterino, linteroni * fix followrequest test not starting processor * fix other api/client tests not starting processor * fix remaining tests where processor not started * bump go-runners version * don't check last-webfingered-at, processor may have updated this * update swagger command * update bun to latest version * fix embed to work the same as before with new bun Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>
32 lines
1.1 KiB
Go
32 lines
1.1 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !purego
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// +build !purego
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// Package alias implements memory aliasing tests.
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package alias
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import "unsafe"
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// AnyOverlap reports whether x and y share memory at any (not necessarily
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// corresponding) index. The memory beyond the slice length is ignored.
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func AnyOverlap(x, y []byte) bool {
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return len(x) > 0 && len(y) > 0 &&
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uintptr(unsafe.Pointer(&x[0])) <= uintptr(unsafe.Pointer(&y[len(y)-1])) &&
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uintptr(unsafe.Pointer(&y[0])) <= uintptr(unsafe.Pointer(&x[len(x)-1]))
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}
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// InexactOverlap reports whether x and y share memory at any non-corresponding
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// index. The memory beyond the slice length is ignored. Note that x and y can
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// have different lengths and still not have any inexact overlap.
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//
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// InexactOverlap can be used to implement the requirements of the crypto/cipher
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// AEAD, Block, BlockMode and Stream interfaces.
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func InexactOverlap(x, y []byte) bool {
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if len(x) == 0 || len(y) == 0 || &x[0] == &y[0] {
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return false
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}
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return AnyOverlap(x, y)
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}
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