1 #include <cmath>
2 #include <glib/gmacros.h>
4 #include <libnr/nr-rotate-fns.h>
5 #include <utest/utest.h>
7 int main(int argc, char *argv[])
8 {
9 utest_start("rotate-fns");
11 UTEST_TEST("rotate_degrees") {
12 double const d[] = {
13 0, 90, 180, 270, 360, 45, 45.01, 44.99, 134, 135, 136, 314, 315, 317, 359, 361
14 };
15 for (unsigned i = 0; i < G_N_ELEMENTS(d); ++i) {
16 double const degrees = d[i];
17 NR::rotate const rot(rotate_degrees(degrees));
18 NR::rotate const rot_approx( M_PI * ( degrees / 180. ) );
19 UTEST_ASSERT(rotate_equalp(rot, rot_approx, 1e-12));
21 NR::rotate const rot_inv(rotate_degrees(-degrees));
22 NR::rotate const rot_compl(rotate_degrees(360 - degrees));
23 UTEST_ASSERT(rotate_equalp(rot_inv, rot_compl, 1e-12));
25 UTEST_ASSERT(!rotate_equalp(rot, rotate_degrees(degrees + 1), 1e-5));
26 }
27 }
29 return ( utest_end()
30 ? EXIT_SUCCESS
31 : EXIT_FAILURE );
32 }
34 /*
35 Local Variables:
36 mode:c++
37 c-file-style:"stroustrup"
38 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
39 indent-tabs-mode:nil
40 fill-column:99
41 End:
42 */
43 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :