mirror of
https://github.com/golang/go
synced 2024-11-12 08:40:21 -07:00
9b6ccb1323
Only documentation / comment changes. Update references to point to golang.org permalinks or go.googlesource.com/go. References in historical release notes under doc are left as is. Change-Id: Icfc14e4998723e2c2d48f9877a91c5abef6794ea Reviewed-on: https://go-review.googlesource.com/4060 Reviewed-by: Ian Lance Taylor <iant@golang.org>
56 lines
904 B
Go
56 lines
904 B
Go
// run
|
|
|
|
// Copyright 2010 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.
|
|
|
|
// http://golang.org/issue/807
|
|
|
|
package main
|
|
|
|
type Point struct {
|
|
X, Y int64
|
|
}
|
|
|
|
type Rect struct {
|
|
Min, Max Point
|
|
}
|
|
|
|
func (p Point) Sub(q Point) Point {
|
|
return Point{p.X-q.X, p.Y-q.Y}
|
|
}
|
|
|
|
type Obj struct {
|
|
bbox Rect
|
|
}
|
|
|
|
func (o *Obj) Bbox() Rect {
|
|
return o.bbox
|
|
}
|
|
|
|
func (o *Obj) Points() [2]Point{
|
|
return [2]Point{o.bbox.Min, o.bbox.Max}
|
|
}
|
|
|
|
var x = 0
|
|
|
|
func main() {
|
|
o := &Obj{Rect{Point{800, 0}, Point{}}}
|
|
p := Point{800, 300}
|
|
q := p.Sub(o.Bbox().Min)
|
|
if q.X != 0 || q.Y != 300 {
|
|
println("BUG dot: ", q.X, q.Y)
|
|
return
|
|
}
|
|
|
|
q = p.Sub(o.Points()[0])
|
|
if q.X != 0 || q.Y != 300 {
|
|
println("BUG index const: ", q.X, q.Y)
|
|
}
|
|
|
|
q = p.Sub(o.Points()[x])
|
|
if q.X != 0 || q.Y != 300 {
|
|
println("BUG index var: ", q.X, q.Y)
|
|
}
|
|
}
|