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annotate run/mini/ptrarith.d @ 1628:c6ef09dfba4d

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add mini test set from ldc project
author Moritz Warning <moritzwarning@web.de>
date Mon, 10 Jan 2011 19:47:18 +0100
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1628
c6ef09dfba4d add mini test set from ldc project
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1 extern(C) int printf(char*, ...);
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2
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3 void main()
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4 {
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5 printf("Pointer arithmetic test\n");
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6 int* p;
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7 printf("0x%x\n", p);
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8 assert(p++ is null);
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9 assert(cast(size_t)p == 4);
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10 printf("0x%x\n", p);
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11 p--;
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12 assert(p is null);
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13 printf("0x%x\n", p);
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14 int d = 4;
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15 p+=d;
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16 printf("0x%x\n", p);
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17 assert(cast(size_t)p == 16);
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18 d = 2;
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19 p+=d;
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20 printf("0x%x\n", p);
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21 assert(cast(size_t)p == 0x18);
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22 d = 6;
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23 p-=d;
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24 printf("0x%x\n", p);
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25 assert(p is null);
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26 printf(" SUCCESS\n");
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27 }
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28
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29 void fill_byte_array(ubyte* a, size_t n, ubyte v)
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30 {
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31 auto p = a;
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32 auto end = a+n;
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33 while (p !is end)
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34 *p++ = v;
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35 }