1 #include <glib/gmacros.h>
2 #include <cmath>
4 #include "libnr/in-svg-plane.h"
5 #include "utest/utest.h"
6 #include "isnan.h"
8 int main(int argc, char *argv[])
9 {
10 utest_start("in-svg-plane.h");
12 NR::Point const p3n4(3.0, -4.0);
13 NR::Point const p0(0.0, 0.0);
14 double const small = pow(2.0, -1070);
15 double const inf = 1e400;
16 double const nan = inf - inf;
18 NR::Point const small_left(-small, 0.0);
19 NR::Point const small_n3_4(-3.0 * small, 4.0 * small);
20 NR::Point const part_nan(3., nan);
22 assert(isNaN(nan));
23 assert(!isNaN(small));
25 UTEST_TEST("in_svg_plane") {
26 UTEST_ASSERT(in_svg_plane(p3n4));
27 UTEST_ASSERT(in_svg_plane(p0));
28 UTEST_ASSERT(in_svg_plane(small_left));
29 UTEST_ASSERT(in_svg_plane(small_n3_4));
30 UTEST_ASSERT(nan != nan);
31 UTEST_ASSERT(!in_svg_plane(NR::Point(nan, 3.)));
32 UTEST_ASSERT(!in_svg_plane(NR::Point(inf, nan)));
33 UTEST_ASSERT(!in_svg_plane(NR::Point(0., -inf)));
34 double const xs[] = {inf, -inf, nan, 1., -2., small, -small};
35 for (unsigned i = 0; i < G_N_ELEMENTS(xs); ++i) {
36 for (unsigned j = 0; j < G_N_ELEMENTS(xs); ++j) {
37 UTEST_ASSERT( in_svg_plane(NR::Point(xs[i], xs[j]))
38 == (fabs(xs[i]) < inf &&
39 fabs(xs[j]) < inf ) );
40 }
41 }
42 }
44 return ( utest_end()
45 ? EXIT_SUCCESS
46 : EXIT_FAILURE );
47 }
49 /*
50 Local Variables:
51 mode:c++
52 c-file-style:"stroustrup"
53 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
54 indent-tabs-mode:nil
55 fill-column:99
56 End:
57 */
58 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :