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-rw-r--r--test/copy1.go27
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+// errorcheck
+
+// 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.
+
+// Verify that copy arguments requirements are enforced by the
+// compiler.
+
+package main
+
+func main() {
+
+ si := make([]int, 8)
+ sf := make([]float64, 8)
+
+ _ = copy() // ERROR "not enough arguments"
+ _ = copy(1, 2, 3) // ERROR "too many arguments"
+
+ _ = copy(si, "hi") // ERROR "have different element types(.*int.*string| int and byte)"
+ _ = copy(si, sf) // ERROR "have different element types.*int.*float64"
+
+ _ = copy(1, 2) // ERROR "must be slices; have int, int|expects slice arguments"
+ _ = copy(1, si) // ERROR "first argument to copy should be|expects slice arguments"
+ _ = copy(si, 2) // ERROR "second argument to copy should be|expects slice arguments"
+
+}