github.com/xushiwei/go@v0.0.0-20130601165731-2b9d83f45bc9/test/fixedbugs/issue4283.go (about)

     1  // errorcheck
     2  
     3  // Copyright 2012 The Go Authors.  All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  // Issue 4283: nil == nil can't be done as the type is unknown.
     8  
     9  package p
    10  
    11  func F1() bool {
    12  	return nil == nil	// ERROR "invalid"
    13  }
    14  
    15  func F2() bool {
    16  	return nil != nil	// ERROR "invalid"
    17  }