20 lines
733 B
Diff
20 lines
733 B
Diff
diff --git a/fig2dev/trans_spline.c b/fig2dev/trans_spline.c
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index b6fb413..f9b6c18 100644
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--- a/fig2dev/trans_spline.c
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+++ b/fig2dev/trans_spline.c
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@@ -228,6 +228,11 @@ compute_closed_spline(F_spline *spline, float precision)
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if (!init_point_array(300, 200))
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return NULL;
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+ if (!(spline->points /* p0 */ && spline->controls /* s0 */ &&
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+ spline->points->next /* p1 */ && spline->controls->next /* s1 */ &&
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+ spline->points->next->next && spline->controls->next->next/* p2, s2 */&&
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+ spline->points->next->next->next && spline->controls->next->next->next))
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+ return NULL;
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INIT_CONTROL_POINTS(spline, p0, s0, p1, s1, p2, s2, p3, s3);
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COPY_CONTROL_POINT(first, s_first, p0, s0);
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--
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2.27.0
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