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-rw-r--r--test/fixedbugs/bug463.go22
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diff --git a/test/fixedbugs/bug463.go b/test/fixedbugs/bug463.go
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+// errorcheck
+
+// 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.
+
+// Issue 3757: unhelpful typechecking loop message
+// for constants that refer to themselves.
+
+package main
+
+const a = a // ERROR "refers to itself|definition loop"
+
+const (
+ X = A
+ A = B // ERROR "refers to itself|definition loop"
+ B = D
+ C, D = 1, A
+)
+
+func main() {
+}