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[glyf] Add an assertion

This commit is contained in:
Behdad Esfahbod 2022-06-27 14:02:15 -06:00
parent 5da341ce92
commit 6e72c2e3fa
1 changed files with 1 additions and 0 deletions
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src/OT/glyf/SimpleGlyph.hh
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@ -157,6 +157,7 @@ struct SimpleGlyph
{ {
const HBUINT16 *endPtsOfContours = &StructAfter<HBUINT16> (header); const HBUINT16 *endPtsOfContours = &StructAfter<HBUINT16> (header);
int num_contours = header.numberOfContours; int num_contours = header.numberOfContours;
assert (num_contours);
if (unlikely (!bytes.check_range (&endPtsOfContours[num_contours - 1]))) return false; if (unlikely (!bytes.check_range (&endPtsOfContours[num_contours - 1]))) return false;
unsigned int num_points = endPtsOfContours[num_contours - 1] + 1; unsigned int num_points = endPtsOfContours[num_contours - 1] + 1;