blob: 379f53fa42256621b89af27ca255ddcdd0d52e8c [file] [log] [blame]
 // \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out // 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. 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; }