go source for verification 2026-05-22

test/fixedbugs/bug381.go

@@ -0,0 +1,31 @@
+// errorcheck
+
+// Copyright 2011 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.
+
+// Issue 2276.
+
+// Check that the error messages says 
+//	bug381.go:29: unsafe.Alignof(0) not used
+// and not
+//	bug381.go:29: 4 not used
+
+// Issue 2768: previously got
+//    bug381.go:30: cannot use 3 (type time.Weekday) as type int in function argument
+// want
+//    bug381.go:30: cannot use time.Wednesday (type time.Weekday) as type int in function argument
+
+package main
+
+import (
+	"time"
+	"unsafe"
+)
+
+func f(int)
+
+func main() {
+	unsafe.Alignof(0) // ERROR "unsafe\.Alignof|value computed is not used"
+	f(time.Wednesday) // ERROR "time.Wednesday|incompatible type"
+}