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

// 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.

package main

var m0 map[string]int

var m1 *map[string]int

var m2 *map[string]int = &m0

var m3 map[string]int = map[string]int{"a": 1}

var m4 *map[string]int = &m3

var s0 string

var s1 *string

var s2 *string = &s0

var s3 string = "a"

var s4 *string = &s3

var a0 [10]int

var a1 *[10]int

var a2 *[10]int = &a0

var b0 []int

var b1 *[]int

var b2 *[]int = &b0

var b3 []int = []int{1, 2, 3}

var b4 *[]int = &b3

func crash() {

        // these uses of nil pointers

        // would crash but should type check

        println("crash",

                len(a1)+cap(a1))

}

func nocrash() {

        // this is spaced funny so that

        // the compiler will print a different

        // line number for each len call if

        // it decides there are type errors.

        // it might also help in the traceback.

        x :=

                len(m0) +

                        len(m3)

        if x != 1 {

                println("wrong maplen")

                panic("fail")

        }

        x =

                len(s0) +

                        len(s3)

        if x != 1 {

                println("wrong stringlen")

                panic("fail")

        }

        x =

                len(a0) +

                        len(a2)

        if x != 20 {

                println("wrong arraylen")

                panic("fail")

        }

        x =

                len(b0) +

                        len(b3)

        if x != 3 {

                println("wrong slicelen")

                panic("fail")

        }

        x =

                cap(b0) +

                        cap(b3)

        if x != 3 {

                println("wrong slicecap")

                panic("fail")

        }

}

func main() { nocrash() }