mirror of
https://github.com/golang/go
synced 2024-11-23 09:20:05 -07:00
2acd3646fc
Induction variable detection is still not quite right. I've added another failing test. Redo the overflow/underflow detector so it is more obviously correct. Update #53600 Fixes #53653 Fixes #53663 Change-Id: Id95228e282fdbf6bd80b26e1c41d62e935ba08ff Reviewed-on: https://go-review.googlesource.com/c/go/+/415874 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Russ Cox <rsc@golang.org> Reviewed-by: David Chase <drchase@google.com>
43 lines
659 B
Go
43 lines
659 B
Go
// run
|
|
|
|
// Copyright 2022 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 "math"
|
|
|
|
func main() {
|
|
f()
|
|
g()
|
|
h()
|
|
}
|
|
func f() {
|
|
for i := int64(math.MinInt64); i >= math.MinInt64; i-- {
|
|
if i > 0 {
|
|
println("done")
|
|
return
|
|
}
|
|
println(i, i > 0)
|
|
}
|
|
}
|
|
func g() {
|
|
for i := int64(math.MinInt64) + 1; i >= math.MinInt64; i-- {
|
|
if i > 0 {
|
|
println("done")
|
|
return
|
|
}
|
|
println(i, i > 0)
|
|
}
|
|
}
|
|
func h() {
|
|
for i := int64(math.MinInt64) + 2; i >= math.MinInt64; i -= 2 {
|
|
if i > 0 {
|
|
println("done")
|
|
return
|
|
}
|
|
println(i, i > 0)
|
|
}
|
|
}
|