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// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG

// Copyright 2010 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.

// Test case for http://code.google.com/p/go/issues/detail?id=692

package main

var fooCount = 0

var barCount = 0

var balCount = 0

func foo() (int, int) {

        fooCount++

        return 0, 0

}

func bar() (int, int) {

        barCount++

        return 0, 0

}

func bal() (int, int) {

        balCount++

        return 0, 0

}

var a, b = foo() // foo is called once

var c, _ = bar() // bar is called twice

var _, _ = bal() // bal is called twice

func main() {

        if fooCount != 1 {

                panic("fooCount != 1")

        }

        if barCount != 1 {

                panic("barCount != 1")

        }

        if balCount != 1 {

                panic("balCount != 1")

        }

}