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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
commit | ccd992355df7192993c666236047820244914598 (patch) | |
tree | f00fea65147227b7743083c6148396f74cd66935 /test/fixedbugs/issue60601.go | |
parent | Initial commit. (diff) | |
download | golang-1.21-ccd992355df7192993c666236047820244914598.tar.xz golang-1.21-ccd992355df7192993c666236047820244914598.zip |
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/fixedbugs/issue60601.go')
-rw-r--r-- | test/fixedbugs/issue60601.go | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/fixedbugs/issue60601.go b/test/fixedbugs/issue60601.go new file mode 100644 index 0000000..5308989 --- /dev/null +++ b/test/fixedbugs/issue60601.go @@ -0,0 +1,50 @@ +// run + +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package main + +import ( + "strings" + "unsafe" +) + +func shift[T any]() int64 { + return 1 << unsafe.Sizeof(*new(T)) +} + +func div[T any]() uintptr { + return 1 / unsafe.Sizeof(*new(T)) +} + +func add[T any]() int64 { + return 1<<63 - 1 + int64(unsafe.Sizeof(*new(T))) +} + +func main() { + shift[[62]byte]() + shift[[63]byte]() + shift[[64]byte]() + shift[[100]byte]() + shift[[1e6]byte]() + + add[[1]byte]() + shouldPanic("divide by zero", func() { div[[0]byte]() }) +} + +func shouldPanic(str string, f func()) { + defer func() { + err := recover() + if err == nil { + panic("did not panic") + } + s := err.(error).Error() + if !strings.Contains(s, str) { + panic("got panic " + s + ", want " + str) + } + }() + + f() +} |