gcc/testsuite/go.test/test/ken/slicearray.go

   1 // $G $D/$F.go && $L $F.$A && ./$A.out
   2
   3 // Copyright 2009 The Go Authors. All rights reserved.
   4 // Use of this source code is governed by a BSD-style
   5 // license that can be found in the LICENSE file.
   6
   7 package main
   8
   9 var bx [10]byte
  10 var by []byte
  11 var fx [10]float
  12 var fy []float
  13 var lb, hb int
  14 var t int
  15
  16 func main() {
  17         lb = 0
  18         hb = 10
  19         by = bx[0:]
  20         tstb()
  21
  22         lb = 0
  23         hb = 10
  24         fy = fx[0:]
  25         tstf()
  26
  27         // width 1 (byte)
  28         lb = 0
  29         hb = 10
  30         by = bx[lb:hb]
  31         tstb()
  32         by = bx[lb:10]
  33         tstb()
  34         by = bx[lb:]
  35         tstb()
  36         by = bx[:hb]
  37         tstb()
  38         by = bx[0:hb]
  39         tstb()
  40         by = bx[0:10]
  41         tstb()
  42         by = bx[0:]
  43         tstb()
  44         by = bx[:10]
  45         tstb()
  46         by = bx[:]
  47         tstb()
  48
  49         lb = 2
  50         hb = 10
  51         by = bx[lb:hb]
  52         tstb()
  53         by = bx[lb:10]
  54         tstb()
  55         by = bx[lb:]
  56         tstb()
  57         by = bx[2:hb]
  58         tstb()
  59         by = bx[2:10]
  60         tstb()
  61         by = bx[2:]
  62         tstb()
  63
  64         lb = 0
  65         hb = 8
  66         by = bx[lb:hb]
  67         tstb()
  68         by = bx[lb:8]
  69         tstb()
  70         by = bx[0:hb]
  71         tstb()
  72         by = bx[0:8]
  73         tstb()
  74         by = bx[:8]
  75         tstb()
  76         by = bx[:hb]
  77         tstb()
  78
  79         lb = 2
  80         hb = 8
  81         by = bx[lb:hb]
  82         tstb()
  83         by = bx[lb:8]
  84         tstb()
  85         by = bx[2:hb]
  86         tstb()
  87         by = bx[2:8]
  88         tstb()
  89
  90         // width 4 (float)
  91         lb = 0
  92         hb = 10
  93         fy = fx[lb:hb]
  94         tstf()
  95         fy = fx[lb:10]
  96         tstf()
  97         fy = fx[lb:]
  98         tstf()
  99         fy = fx[:hb]
 100         tstf()
 101         fy = fx[0:hb]
 102         tstf()
 103         fy = fx[0:10]
 104         tstf()
 105         fy = fx[0:]
 106         tstf()
 107         fy = fx[:10]
 108         tstf()
 109         fy = fx[:]
 110         tstf()
 111
 112         lb = 2
 113         hb = 10
 114         fy = fx[lb:hb]
 115         tstf()
 116         fy = fx[lb:10]
 117         tstf()
 118         fy = fx[lb:]
 119         tstf()
 120         fy = fx[2:hb]
 121         tstf()
 122         fy = fx[2:10]
 123         tstf()
 124         fy = fx[2:]
 125         tstf()
 126
 127         lb = 0
 128         hb = 8
 129         fy = fx[lb:hb]
 130         tstf()
 131         fy = fx[lb:8]
 132         tstf()
 133         fy = fx[:hb]
 134         tstf()
 135         fy = fx[0:hb]
 136         tstf()
 137         fy = fx[0:8]
 138         tstf()
 139         fy = fx[:8]
 140         tstf()
 141
 142         lb = 2
 143         hb = 8
 144         fy = fx[lb:hb]
 145         tstf()
 146         fy = fx[lb:8]
 147         tstf()
 148         fy = fx[2:hb]
 149         tstf()
 150         fy = fx[2:8]
 151         tstf()
 152 }
 153
 154 func tstb() {
 155         t++
 156         if len(by) != hb-lb {
 157                 println("t=", t, "lb=", lb, "hb=", hb,
 158                         "len=", len(by), "hb-lb=", hb-lb)
 159                 panic("fail")
 160         }
 161         if cap(by) != len(bx)-lb {
 162                 println("t=", t, "lb=", lb, "hb=", hb,
 163                         "cap=", cap(by), "len(bx)-lb=", len(bx)-lb)
 164                 panic("fail")
 165         }
 166         for i := lb; i < hb; i++ {
 167                 if bx[i] != by[i-lb] {
 168                         println("t=", t, "lb=", lb, "hb=", hb,
 169                                 "bx[", i, "]=", bx[i],
 170                                 "by[", i-lb, "]=", by[i-lb])
 171                         panic("fail")
 172                 }
 173         }
 174         by = nil
 175 }
 176
 177 func tstf() {
 178         t++
 179         if len(fy) != hb-lb {
 180                 println("t=", t, "lb=", lb, "hb=", hb,
 181                         "len=", len(fy), "hb-lb=", hb-lb)
 182                 panic("fail")
 183         }
 184         if cap(fy) != len(fx)-lb {
 185                 println("t=", t, "lb=", lb, "hb=", hb,
 186                         "cap=", cap(fy), "len(fx)-lb=", len(fx)-lb)
 187                 panic("fail")
 188         }
 189         for i := lb; i < hb; i++ {
 190                 if fx[i] != fy[i-lb] {
 191                         println("t=", t, "lb=", lb, "hb=", hb,
 192                                 "fx[", i, "]=", fx[i],
 193                                 "fy[", i-lb, "]=", fy[i-lb])
 194                         panic("fail")
 195                 }
 196         }
 197         fy = nil
 198 }
 199
 200 func init() {
 201         for i := 0; i < len(bx); i++ {
 202                 bx[i] = byte(i + 20)
 203         }
 204         by = nil
 205
 206         for i := 0; i < len(fx); i++ {
 207                 fx[i] = float(i + 20)
 208         }
 209         fy = nil
 210 }