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o Add patch to avoid divide-by-zero trap o Merge patches for gnuplot-3.7.1 PR: 16120 Submitted by: Akio Morita <amorita@meadow.scphys.kyoto-u.ac.jp> Reviewed by: maintainer
27 lines
957 B
Plaintext
27 lines
957 B
Plaintext
# hidden3d-endlessloop
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--- hidden3d.c.ORIG Thu Aug 19 15:39:28 1999
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+++ hidden3d.c Wed Nov 17 17:42:00 1999
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@@ -2140,14 +2140,20 @@
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test->tested = is_moved_or_split;
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SPLIT_TEST_BY_P;
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} else {
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- if (loop && (p->tested == is_tested)) {
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- /* Ouch, seems like we're in trouble, really */
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+ if (loop && (p->tested == is_in_loop)) {
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+ /* Ouch, seems like we're in trouble, really: no way to
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+ * split one of them, and we're in a loop, so we can't
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+ * move p to the front of the list, without risking an
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+ * endless loop. Well, let's just output the darn thing,
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+ * then, no matter what. :-( */
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+#if DEBUG /* normally off */
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fprintf(stderr, "\
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#Failed: In loop, without intersections.\n\
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#Relations are %d, %d\n",
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p_rel_tplane, t_rel_pplane);
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print_polygon(test, "test");
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print_polygon(p, "p");
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+#endif
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continue; /* Keep quiet, maybe no-one will notice (;-) */
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} else {
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PUT_P_IN_FRONT_TEST(is_in_loop);
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