1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// run
// 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");
}
}
|
