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Source file test/fixedbugs/issue19911.go

Documentation: test/fixedbugs

  // run
  
  // 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.
  
  package main
  
  import (
  	"fmt"
  	"strings"
  )
  
  type ET struct{}
  
  func (*ET) Error() string { return "err" }
  
  func main() {
  	check("false", fmt.Sprintf("(*ET)(nil) == error(nil): %v", (*ET)(nil) == error(nil)))
  	check("true", fmt.Sprintf("(*ET)(nil) != error(nil): %v", (*ET)(nil) != error(nil)))
  
  	nilET := (*ET)(nil)
  	nilError := error(nil)
  
  	check("false", fmt.Sprintf("nilET == nilError: %v", nilET == nilError))
  	check("true", fmt.Sprintf("nilET != nilError: %v", nilET != nilError))
  }
  
  func check(want, gotfull string) {
  	got := gotfull[strings.Index(gotfull, ": ")+len(": "):]
  	if got != want {
  		panic("want " + want + " got " + got + " from " + gotfull)
  	}
  }
  

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