// errorcheck // Copyright 2016 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 12525: confusing error trying to increment boolean value package main func main() { var i int i++ var f float64 f++ var c complex128 c++ var b bool b++ // ERROR "invalid operation: b\+\+ \(non-numeric type bool\)" var s string s-- // ERROR "invalid operation: s-- \(non-numeric type string\)" }