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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
commit73df946d56c74384511a194dd01dbe099584fd1a (patch)
treefd0bcea490dd81327ddfbb31e215439672c9a068 /test/fixedbugs/bug470.go
parentInitial commit. (diff)
downloadgolang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.tar.xz
golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.zip
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/fixedbugs/bug470.go')
-rw-r--r--test/fixedbugs/bug470.go26
1 files changed, 26 insertions, 0 deletions
diff --git a/test/fixedbugs/bug470.go b/test/fixedbugs/bug470.go
new file mode 100644
index 0000000..c21663f
--- /dev/null
+++ b/test/fixedbugs/bug470.go
@@ -0,0 +1,26 @@
+// run
+
+// Copyright 2012 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.
+
+// Converting constants between types must introduce rounding.
+
+package main
+
+import "fmt"
+
+const (
+ F32 = 0.00999999977648258209228515625
+ F64 = 0.01000000000000000020816681711721685132943093776702880859375
+)
+
+var F = float64(float32(0.01))
+
+func main() {
+ // 0.01 rounded to float32 then to float64 is F32.
+ // 0.01 represented directly in float64 is F64.
+ if F != F32 {
+ panic(fmt.Sprintf("F=%.1000g, want %.1000g", F, F32))
+ }
+}