diff options
Diffstat (limited to 'test/divide.go')
-rw-r--r-- | test/divide.go | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/test/divide.go b/test/divide.go new file mode 100644 index 0000000..b557041 --- /dev/null +++ b/test/divide.go @@ -0,0 +1,62 @@ +// 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) +} |