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Source file test/copy1.go

Documentation: test

  // 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 "missing arguments"
  	_ = copy(1, 2, 3) // ERROR "too many arguments"
  
  	_ = copy(si, "hi") // ERROR "have different element types.*int.*string"
  	_ = copy(si, sf)   // ERROR "have different element types.*int.*float64"
  
  	_ = copy(1, 2)  // ERROR "must be slices; have int, int"
  	_ = copy(1, si) // ERROR "first argument to copy should be"
  	_ = copy(si, 2) // ERROR "second argument to copy should be"
  
  }
  

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