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go/test/copy1.go
Robert Griesemer 02820d61a9 [dev.typeparams] test: enable some more errorcheck tests
Change-Id: I103e3eeacd5b11efd63c965482a626878ba5ac81
Reviewed-on: https://go-review.googlesource.com/c/go/+/275216
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-12-04 21:22:23 +00:00

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Go

// 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"
}