| // run | |
| // Copyright 2018 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 | |
| func mask1(a, b uint64) uint64 { | |
| op1 := int32(a) | |
| op2 := int32(b) | |
| return uint64(uint32(op1 / op2)) | |
| } | |
| var mask2 = mask1 | |
| func main() { | |
| res1 := mask1(0x1, 0xfffffffeffffffff) | |
| res2 := mask2(0x1, 0xfffffffeffffffff) | |
| if res1 != 0xffffffff { | |
| println("got", res1, "want", 0xffffffff) | |
| panic("FAIL") | |
| } | |
| if res2 != 0xffffffff { | |
| println("got", res2, "want", 0xffffffff) | |
| panic("FAIL") | |
| } | |
| } |