1 // run 2 3 // Copyright 2011 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // Test divide corner cases. 8 9 package main 10 11 import "fmt" 12 13 func f8(x, y, q, r int8) { 14 if t := x / y; t != q { 15 fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q) 16 panic("divide") 17 } 18 if t := x % y; t != r { 19 fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) 20 panic("divide") 21 } 22 } 23 24 func f16(x, y, q, r int16) { 25 if t := x / y; t != q { 26 fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q) 27 panic("divide") 28 } 29 if t := x % y; t != r { 30 fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) 31 panic("divide") 32 } 33 } 34 35 func f32(x, y, q, r int32) { 36 if t := x / y; t != q { 37 fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q) 38 panic("divide") 39 } 40 if t := x % y; t != r { 41 fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) 42 panic("divide") 43 } 44 } 45 46 func f64(x, y, q, r int64) { 47 if t := x / y; t != q { 48 fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q) 49 panic("divide") 50 } 51 if t := x % y; t != r { 52 fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) 53 panic("divide") 54 } 55 } 56 57 func main() { 58 f8(-1<<7, -1, -1<<7, 0) 59 f16(-1<<15, -1, -1<<15, 0) 60 f32(-1<<31, -1, -1<<31, 0) 61 f64(-1<<63, -1, -1<<63, 0) 62 } 63
