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[set] Minor 

In preparation to fix https://github.com/harfbuzz/harfbuzz/issues/863

Binary operations are sets are completely broken. Ouch.
This commit is contained in:
Behdad Esfahbod 2018-03-07 09:55:22 +01:00
parent e4cbb87bd3
commit 7587683cdc
1 changed files with 14 additions and 7 deletions
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21
src/hb-set-private.hh
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@ -430,19 +430,26 @@ struct hb_set_t
{ {
a--; a--;
b--; b--;
Op::process (page_at (--count).v, page_at (a).v, other->page_at (b).v); count--;
Op::process (page_at (count).v, page_at (a).v, other->page_at (b).v);
} }
else if (page_map[a - 1].major > other->page_map[b - 1].major) else if (page_map[a - 1].major > other->page_map[b - 1].major)
{ {
a--; a--;
if (Op::passthru_left) if (Op::passthru_left)
page_at (--count).v = page_at (a).v; {
count--;
page_at (count).v = page_at (a).v;
}
} }
else else
{ {
b--; b--;
if (Op::passthru_right) if (Op::passthru_right)
page_at (--count).v = other->page_at (b).v; {
count--;
page_at (count).v = other->page_at (b).v;
}
} }
} }
if (Op::passthru_left) if (Op::passthru_left)