mirror of
https://github.com/golang/go
synced 2024-11-05 18:36:10 -07:00
122 lines
2.3 KiB
Go
122 lines
2.3 KiB
Go
// run
|
|
|
|
// Copyright 2009 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 shift.
|
|
|
|
package main
|
|
|
|
var ians [18]int;
|
|
var uans [18]uint;
|
|
var pass string;
|
|
|
|
func
|
|
testi(i int, t1,t2,t3 int) {
|
|
n := ((t1*3) + t2)*2 + t3;
|
|
if i != ians[n] {
|
|
print("itest ", t1,t2,t3,pass,
|
|
" is ", i, " sb ", ians[n], "\n");
|
|
}
|
|
}
|
|
|
|
func
|
|
index(t1,t2,t3 int) int {
|
|
return ((t1*3) + t2)*2 + t3;
|
|
}
|
|
|
|
func
|
|
testu(u uint, t1,t2,t3 int) {
|
|
n := index(t1,t2,t3);
|
|
if u != uans[n] {
|
|
print("utest ", t1,t2,t3,pass,
|
|
" is ", u, " sb ", uans[n], "\n");
|
|
}
|
|
}
|
|
|
|
func
|
|
main() {
|
|
var i int;
|
|
var u,c uint;
|
|
|
|
/*
|
|
* test constant evaluations
|
|
*/
|
|
pass = "con"; // constant part
|
|
|
|
testi( int(1234) << 0, 0,0,0);
|
|
testi( int(1234) >> 0, 0,0,1);
|
|
testi( int(1234) << 5, 0,1,0);
|
|
testi( int(1234) >> 5, 0,1,1);
|
|
|
|
testi(int(-1234) << 0, 1,0,0);
|
|
testi(int(-1234) >> 0, 1,0,1);
|
|
testi(int(-1234) << 5, 1,1,0);
|
|
testi(int(-1234) >> 5, 1,1,1);
|
|
|
|
testu(uint(5678) << 0, 2,0,0);
|
|
testu(uint(5678) >> 0, 2,0,1);
|
|
testu(uint(5678) << 5, 2,1,0);
|
|
testu(uint(5678) >> 5, 2,1,1);
|
|
|
|
/*
|
|
* test variable evaluations
|
|
*/
|
|
pass = "var"; // variable part
|
|
|
|
for t1:=0; t1<3; t1++ { // +int, -int, uint
|
|
for t2:=0; t2<3; t2++ { // 0, +small, +large
|
|
for t3:=0; t3<2; t3++ { // <<, >>
|
|
switch t1 {
|
|
case 0: i = 1234;
|
|
case 1: i = -1234;
|
|
case 2: u = 5678;
|
|
}
|
|
switch t2 {
|
|
case 0: c = 0;
|
|
case 1: c = 5;
|
|
case 2: c = 1025;
|
|
}
|
|
switch t3 {
|
|
case 0: i <<= c; u <<= c;
|
|
case 1: i >>= c; u >>= c;
|
|
}
|
|
switch t1 {
|
|
case 0: testi(i,t1,t2,t3);
|
|
case 1: testi(i,t1,t2,t3);
|
|
case 2: testu(u,t1,t2,t3);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func
|
|
init() {
|
|
/*
|
|
* set the 'correct' answer
|
|
*/
|
|
|
|
ians[index(0,0,0)] = 1234;
|
|
ians[index(0,0,1)] = 1234;
|
|
ians[index(0,1,0)] = 39488;
|
|
ians[index(0,1,1)] = 38;
|
|
ians[index(0,2,0)] = 0;
|
|
ians[index(0,2,1)] = 0;
|
|
|
|
ians[index(1,0,0)] = -1234;
|
|
ians[index(1,0,1)] = -1234;
|
|
ians[index(1,1,0)] = -39488;
|
|
ians[index(1,1,1)] = -39;
|
|
ians[index(1,2,0)] = 0;
|
|
ians[index(1,2,1)] = -1;
|
|
|
|
uans[index(2,0,0)] = 5678;
|
|
uans[index(2,0,1)] = 5678;
|
|
uans[index(2,1,0)] = 181696;
|
|
uans[index(2,1,1)] = 177;
|
|
uans[index(2,2,0)] = 0;
|
|
uans[index(2,2,1)] = 0;
|
|
}
|