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annotate run/mini/dotproduct.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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3 struct vec3
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4 {
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5 float x,y,z;
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6
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7 float dot(ref vec3 v)
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8 {
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9 return x*v.x + y*v.y + z*v.z;
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10 }
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11
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12 void print(char[] n)
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13 {
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14 printf("%.*s = vec3(%.4f, %.4f, %.4f)\n", n.length, n.ptr, x,y,z);
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15 }
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16 }
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17
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18 int main()
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19 {
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20 printf("Dot Product test\n");
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21
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22 const f = 0.7071067811865474617;
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23 vec3 v = vec3(f,f,0);
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24 vec3 w = vec3(f,0,f);
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25
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26 v.print("v");
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27 w.print("w");
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29 auto dp = v.dot(w);
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30 printf("v ยท w = %f\n", dp);
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31 assert(dp > 0.4999 && dp < 0.5001);
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32
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33 printf(" SUCCESS\n");
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34 return 0;
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35 }
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