go source for verification 2026-05-22

test/fixedbugs/issue18661.go

@@ -0,0 +1,39 @@
+// run
+
+// Copyright 2017 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"
+	"os"
+)
+
+var (
+	e interface{}
+	s = struct{ a *int }{}
+	b = e == s
+)
+
+func test(obj interface{}) {
+	if obj != struct{ a *string }{} {
+	}
+}
+
+var x int
+
+func f() [2]string {
+	x++
+	return [2]string{"abc", "def"}
+}
+
+func main() {
+	var e interface{} = [2]string{"abc", "def"}
+	_ = e == f()
+	if x != 1 {
+		fmt.Println("x=", x)
+		os.Exit(1)
+	}
+}