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// $G $D/$F.go && $L $F.$A && ./$A.out

// 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.

package main

import "unsafe"
import "reflect"

const (
        R = 5
        I = 6i

        C1 = R + I // ADD(5,6)
)

func main() {
        c0 := C1
        c0 = (c0 + c0 + c0) / (c0 + c0 + 3i)
        r, i := real(c0), imag(c0)
        d := r - 1.292308
        if d < 0 {
                d = - d
        }
        if d > 1e-6 {
                println(r, "!= 1.292308")
                panic(0)
        }
        d = i + 0.1384615
        if d < 0 {
                d = - d
        }
        if d > 1e-6 {
                println(i, "!= -0.1384615")
                panic(0)
        }

        c := *(*complex128)(unsafe.Pointer(&c0))
        if c != c0 {
                println(c, "!=", c)
                panic(0)
        }

        var a interface{}
        switch c := reflect.ValueOf(a); c.Kind() {
        case reflect.Complex64, reflect.Complex128:
                v := c.Complex()
                _, _ = complex128(v), true
        }
}