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comparison tests/mini/dotproduct.d @ 341:1bb99290e03a trunk

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[svn r362] Started merging the old 'test' dir as well as the newer 'tangotests' dir into 'tests/mini' and 'tests/minicomplex'.
author lindquist
date Sun, 13 Jul 2008 02:51:19 +0200
parents test/dotproduct.d@d9d5d59873d8
children
comparison
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340:351c0077d0b3 341:1bb99290e03a
1 extern(C) int printf(char*, ...);
2
3 struct vec3
4 {
5 float x,y,z;
6
7 float dot(ref vec3 v)
8 {
9 return x*v.x + y*v.y + z*v.z;
10 }
11
12 void print(char[] n)
13 {
14 printf("%.*s = vec3(%.4f, %.4f, %.4f)\n", n.length, n.ptr, x,y,z);
15 }
16 }
17
18 int main()
19 {
20 printf("Dot Product test\n");
21
22 const f = 0.7071067811865474617;
23 vec3 v = vec3(f,f,0);
24 vec3 w = vec3(f,0,f);
25
26 v.print("v");
27 w.print("w");
28
29 auto dp = v.dot(w);
30 printf("v ยท w = %f\n", dp);
31 assert(dp > 0.4999 && dp < 0.5001);
32
33 printf(" SUCCESS\n");
34 return 0;
35 }
36