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// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: should not panic

// 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

import "fmt"

func f0() string {
        const f = 3.141592;
        return fmt.Sprintf("%v", float64(f));
}


func f1() string {
        const f = 3.141592;
        x := float64(float32(f));  // appears to change the precision of f
        _ = x;
        return fmt.Sprintf("%v", float64(f));
}


func main() {
        r0 := f0();
        r1 := f1();
        if r0 != r1 {
                println("r0 =", r0);
                println("r1 =", r1);
                panic("r0 and r1 should be the same");
        }
}