| // compile | |
| // Copyright 2023 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 p | |
| func sign(p1, p2, p3 point) bool { | |
| return (p1.x-p3.x)*(p2.y-p3.y)-(p2.x-p3.x)*(p1.y-p3.y) < 0 | |
| } | |
| type point struct { | |
| x, y int | |
| } |