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Prevent dereferencing of a null pointer #59

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Merged
stevengj merged 1 commit into from
Nov 10, 2021
Merged

Prevent dereferencing of a null pointer #59

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4 changes: 2 additions & 2 deletions utils/geom.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1977,11 +1977,11 @@ int intersect_line_with_segment(vector3 q0, vector3 q1, vector3 q2, vector3 u, d
if (fabs(dot) < (1.0 - THRESH) * q01 * q02)
return NON_INTERSECTING;
else if (dot < 0.0) {
*s = 0.0;
if (s) *s = 0.0;
return IN_SEGMENT;
}
else if ((u.x * q01x + u.y * q01y) < 0.0) {
*s = fmin(q01, q02) / sqrt(u.x * u.x + u.y * u.y);
if (s) *s = fmin(q01, q02) / sqrt(u.x * u.x + u.y * u.y);
return ON_RAY;
}
return NON_INTERSECTING;
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