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annotate test/ptrarith.d @ 1:c53b6e3fe49a trunk

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[svn r5] Initial commit. Most things are very rough.
author lindquist
date Sat, 01 Sep 2007 21:43:27 +0200
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children d9d5d59873d8
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c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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1 void main()
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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2 {
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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3 printf("Pointer arithmetic test\n");
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4 int* p;
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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5 printf("0x%x\n", p);
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6 assert(p++ is null);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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7 assert(cast(size_t)p == 4);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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8 printf("0x%x\n", p);
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9 p--;
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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10 assert(p is null);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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11 printf("0x%x\n", p);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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12 int d = 4;
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13 p+=d;
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14 printf("0x%x\n", p);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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15 assert(cast(size_t)p == 16);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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16 d = 2;
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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17 p+=d;
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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18 printf("0x%x\n", p);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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19 assert(cast(size_t)p == 0x18);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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20 d = 6;
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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21 p-=d;
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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22 printf("0x%x\n", p);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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23 assert(p is null);
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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24 printf(" SUCCESS\n");
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25 }
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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26
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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27 void fill_byte_array(ubyte* a, size_t n, ubyte v)
c53b6e3fe49a [svn r5] Initial commit. Most things are very rough.
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28 {
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29 auto p = a;
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30 auto end = a+n;
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31 while (p !is end)
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32 *p++ = v;
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33 }