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annotate run/m/memory_management_07_A.d @ 1579:1802d6b67634

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[Issue 1666] New: 64-bit gdc programs cannot allocate large arrays <david@acz.org> 2007-11-12 http://d.puremagic.com/issues/show_bug.cgi?id=1666
author thomask
date Fri, 22 Feb 2008 07:54:04 +0000
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1579
1802d6b67634 [Issue 1666] New: 64-bit gdc programs cannot allocate large arrays
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1 // $HeadURL$
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2 // $Date$
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3 // $Author$
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4
1802d6b67634 [Issue 1666] New: 64-bit gdc programs cannot allocate large arrays
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5 // @author@ <david@acz.org>
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6 // @date@ 2007-11-12
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7 // @uri@ http://d.puremagic.com/issues/show_bug.cgi?id=1666
1802d6b67634 [Issue 1666] New: 64-bit gdc programs cannot allocate large arrays
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8 // @desc@ [Issue 1666] New: 64-bit gdc programs cannot allocate large arrays
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9
1802d6b67634 [Issue 1666] New: 64-bit gdc programs cannot allocate large arrays
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10 module dstress.run.m.memory_management_07_A;
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11
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12 int main(char[][] args){
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13 ubyte x[];
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14 size_t len = size_t.max - (size_t.max / 32);
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15
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16 try{
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17 x.length = len;
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18 }catch(Exception e){
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19 // "out of memory" Exception
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20 return 0;
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21 }
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22
1802d6b67634 [Issue 1666] New: 64-bit gdc programs cannot allocate large arrays
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23 // a LOT of memory (maybe someone cheated *g*)
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24 if(len != x.length){
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25 assert(0);
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26 }
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27
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28 // try to defeat "smart" cheaters
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29 size_t step = 4096 - args.length;
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30 for(size_t i = 0; i < len; i += step){
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31 x[i] = i & 0xFF;
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32 }
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33
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34 step = 4096 - ((args[0].length / 1000 + 1) % 13);
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35 for(size_t i = 0; i < len; i += step){
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36 if((i & 0xFF) != x[i]){
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37 assert(0);
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38 }
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39 }
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40
1802d6b67634 [Issue 1666] New: 64-bit gdc programs cannot allocate large arrays
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41 return 0;
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42 }