// errorcheck // Copyright 2015 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 an incorrect use of the blank identifier is caught. // Does not compile. package main func f() (_, _ []int) { return } func g() (x []int, y float64) { return } func main() { _ = append(f()) // ERROR "cannot use \[\]int value as type int in append|cannot use.*type \[\]int.*to append" _ = append(g()) // ERROR "cannot use float64 value as type int in append|cannot use.*type float64.*to append" }