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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:23:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:23:18 +0000
commit43a123c1ae6613b3efeed291fa552ecd909d3acf (patch)
treefd92518b7024bc74031f78a1cf9e454b65e73665 /test/const3.go
parentInitial commit. (diff)
downloadgolang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.tar.xz
golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.zip
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/const3.go')
-rw-r--r--test/const3.go37
1 files changed, 37 insertions, 0 deletions
diff --git a/test/const3.go b/test/const3.go
new file mode 100644
index 0000000..3f4e3d1
--- /dev/null
+++ b/test/const3.go
@@ -0,0 +1,37 @@
+// run
+
+// Copyright 2009 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 typed integer constants.
+
+package main
+
+import "fmt"
+
+type T int
+
+func (t T) String() string { return fmt.Sprintf("T%d", int(t)) }
+
+const (
+ A T = 1 << (1 << iota)
+ B
+ C
+ D
+ E
+)
+
+func main() {
+ s := fmt.Sprintf("%v %v %v %v %v", A, B, C, D, E)
+ if s != "T2 T4 T16 T256 T65536" {
+ println("type info didn't propagate in const: got", s)
+ panic("fail")
+ }
+ x := uint(5)
+ y := float64(uint64(1)<<x) // used to fail to compile
+ if y != 32 {
+ println("wrong y", y)
+ panic("fail")
+ }
+}