1
0
mirror of https://github.com/golang/go synced 2024-11-06 06:36:20 -07:00
go/test/divide.go

63 lines
1.2 KiB
Go
Raw Normal View History

// run
// Copyright 2011 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.
// Test divide corner cases.
package main
import "fmt"
func f8(x, y, q, r int8) {
if t := x / y; t != q {
fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q)
panic("divide")
}
if t := x % y; t != r {
fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r)
panic("divide")
}
}
func f16(x, y, q, r int16) {
if t := x / y; t != q {
fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q)
panic("divide")
}
if t := x % y; t != r {
fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r)
panic("divide")
}
}
func f32(x, y, q, r int32) {
if t := x / y; t != q {
fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q)
panic("divide")
}
if t := x % y; t != r {
fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r)
panic("divide")
}
}
func f64(x, y, q, r int64) {
if t := x / y; t != q {
fmt.Printf("%d/%d = %d, want %d\n", x, y, t, q)
panic("divide")
}
if t := x % y; t != r {
fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r)
panic("divide")
}
}
func main() {
f8(-1<<7, -1, -1<<7, 0)
f16(-1<<15, -1, -1<<15, 0)
f32(-1<<31, -1, -1<<31, 0)
f64(-1<<63, -1, -1<<63, 0)
}