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// errchk $G -e $F.go

// Copyright 2009 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.

// Incorrect short declarations and redeclarations.

package main

func f1() int                    { return 1 }
func f2() (float32, int)         { return 1, 2 }
func f3() (float32, int, string) { return 1, 2, "3" }

func main() {
        {
                // simple redeclaration
                i := f1()
                i := f1() // ERROR "redeclared|no new"
                _ = i
        }
        {
                // change of type for f
                i, f, s := f3()
                f, g, t := f3() // ERROR "redeclared|cannot assign|incompatible"
                _, _, _, _, _ = i, f, s, g, t
        }
        {
                // change of type for i
                i, f, s := f3()
                j, i, t := f3() // ERROR "redeclared|cannot assign|incompatible"
                _, _, _, _, _ = i, f, s, j, t
        }
        {
                // no new variables
                i, f, s := f3()
                i, f := f2() // ERROR "redeclared|no new"
                _, _, _ = i, f, s
        }
        {
                // single redeclaration
                i, f, s := f3()
                i := 1 // ERROR "redeclared|no new|incompatible"
                _, _, _ = i, f, s
        }
        // double redeclaration
        {
                i, f, s := f3()
                i, f := f2() // ERROR "redeclared|no new"
                _, _, _ = i, f, s
        }
        {
                // triple redeclaration
                i, f, s := f3()
                i, f, s := f3() // ERROR "redeclared|no new"
                _, _, _ = i, f, s
        }
}