mirror of
https://github.com/golang/go
synced 2024-11-05 23:16:11 -07:00
29 lines
575 B
Go
29 lines
575 B
Go
|
// 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")
|
||
|
|
}
|
||
|
|
}
|