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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/issue62203.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 '')
-rw-r--r-- | test/fixedbugs/issue62203.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/fixedbugs/issue62203.go b/test/fixedbugs/issue62203.go new file mode 100644 index 0000000..8c93d78 --- /dev/null +++ b/test/fixedbugs/issue62203.go @@ -0,0 +1,32 @@ +// 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 ( + "fmt" + "maps" +) + +func main() { + m := map[string]struct{}{} + + // Fill m up to the max for 4 buckets = 48 entries. + for i := 0; i < 48; i++ { + m[fmt.Sprintf("%d", i)] = struct{}{} + } + + // Add a 49th entry, to start a grow to 8 buckets. + m["foo"] = struct{}{} + + // Remove that 49th entry. m is still growing to 8 buckets, + // but a clone of m will only have 4 buckets because it + // only needs to fit 48 entries. + delete(m, "foo") + + // Clone an 8-bucket map to a 4-bucket map. + _ = maps.Clone(m) +} |