Files
ldc/test/dotproduct.d
Tomas Lindquist Olsen fcbcd83d8b [svn r8] changed backend includes to always use the gen/<foo>.h prefix
fixed passing string literals as array parameters
few other fixes
moved some array routines into gen/arrays
2007-09-03 17:34:30 +02:00

35 lines
582 B
D

struct vec3
{
float x,y,z;
float dot(ref vec3 v)
{
return x*v.x + y*v.y + z*v.z;
}
void print(char[] n)
{
printf("%.*s = vec3(%.4f, %.4f, %.4f)\n", n.length, n.ptr, x,y,z);
}
}
int main()
{
printf("Dot Product test\n");
const float f = 0.7071067811865474617f;
vec3 v = vec3(f,f,0);
vec3 w = vec3(f,0,f);
v.print("v");
v.print("w");
auto dp = v.dot(w);
printf("v · w = %f\n", dp);
assert(dp > 0.4999 && dp < 0.5001);
printf(" SUCCESS\n");
return 0;
}