[PATCH 7/7] d3dx9: Test raw vertex data for D3DXCreateSphere.

[Dan Kegel]

Misha wrote:

+                    /* comparisons of 0.0f with -0.0f do not quite
seem to work correctly */

Boy, that's for sure.

+                    todo_wine ok(
vertex_data[i].x==test_vertex_data[i].x || (fabsf(vertex_data[i].x) <
0.0001f && fabsf(test_vertex_data[i].x) < 0.0001f), "Got result %f,
expected %f\n",vertex_data[i].x,test_vertex_data[i].x);

You probably want to define an AlmostEqual() function and use that
rather than repeating the logic.  See

http://code.google.com/p/googletest/wiki/GoogleTestAdvancedGuide#Floating-Point_Comparison
and the paper it points to,
http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm

- Dan