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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/bug260.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/bug260.go | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/test/fixedbugs/bug260.go b/test/fixedbugs/bug260.go new file mode 100644 index 0000000..6211c48 --- /dev/null +++ b/test/fixedbugs/bug260.go @@ -0,0 +1,65 @@ +// run + +// Copyright 2010 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 + +// Test that structures pack densely, according to the alignment of the largest field. + +package main + +import ( + "fmt" + "os" + "strconv" +) + +type T1 struct { + x uint8 +} +type T2 struct { + x uint16 +} +type T4 struct { + x uint32 +} + +func main() { + report := len(os.Args) > 1 + status := 0 + var b1 [10]T1 + a0, _ := strconv.ParseUint(fmt.Sprintf("%p", &b1[0])[2:], 16, 64) + a1, _ := strconv.ParseUint(fmt.Sprintf("%p", &b1[1])[2:], 16, 64) + if a1 != a0+1 { + fmt.Println("FAIL") + if report { + fmt.Println("alignment should be 1, is", a1-a0) + } + status = 1 + } + var b2 [10]T2 + a0, _ = strconv.ParseUint(fmt.Sprintf("%p", &b2[0])[2:], 16, 64) + a1, _ = strconv.ParseUint(fmt.Sprintf("%p", &b2[1])[2:], 16, 64) + if a1 != a0+2 { + if status == 0 { + fmt.Println("FAIL") + status = 1 + } + if report { + fmt.Println("alignment should be 2, is", a1-a0) + } + } + var b4 [10]T4 + a0, _ = strconv.ParseUint(fmt.Sprintf("%p", &b4[0])[2:], 16, 64) + a1, _ = strconv.ParseUint(fmt.Sprintf("%p", &b4[1])[2:], 16, 64) + if a1 != a0+4 { + if status == 0 { + fmt.Println("FAIL") + status = 1 + } + if report { + fmt.Println("alignment should be 4, is", a1-a0) + } + } + os.Exit(status) +} |