diff options
author | Russ Cox <rsc@golang.org> | 2011-07-28 14:18:22 -0400 |
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committer | Russ Cox <rsc@golang.org> | 2011-07-28 14:18:22 -0400 |
commit | cbf2bc458da4eecf52938f1354b5549e8b4e250e (patch) | |
tree | a7c75385ad483e56ec4268eea684db7e3f34534d /test/divide.go | |
parent | f9ff2bdcd9b752cb1545199c68d3c01b673ab670 (diff) | |
download | go-cbf2bc458da4eecf52938f1354b5549e8b4e250e.tar.gz |
6g, 8g: divide corner case
Fixes issue 1772.
R=ken2
CC=golang-dev
http://codereview.appspot.com/4798062
Diffstat (limited to 'test/divide.go')
-rw-r--r-- | test/divide.go | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/divide.go b/test/divide.go new file mode 100644 index 000000000..5c0f45059 --- /dev/null +++ b/test/divide.go @@ -0,0 +1,54 @@ +// $G $D/$F.go && $L $F.$A && ./$A.out + +// 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. + +// 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) + } + if t := x % y; t != r { + fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) + } +} + +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) + } + if t := x % y; t != r { + fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) + } +} + +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) + } + if t := x % y; t != r { + fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) + } +} + +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) + } + if t := x % y; t != r { + fmt.Printf("%d%%%d = %d, want %d\n", x, y, t, r) + } +} + +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) +} |