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-rw-r--r--test/runtime.go21
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+// errorcheck
+
+// 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 that even if a file imports runtime,
+// it cannot get at the low-level runtime definitions
+// known to the compiler. For normal packages
+// the compiler doesn't even record the lower case
+// functions in its symbol table, but some functions
+// in runtime are hard-coded into the compiler.
+// Does not compile.
+
+package main
+
+import "runtime"
+
+func main() {
+ runtime.printbool(true) // ERROR "unexported|undefined"
+}