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| author | Behdad Esfahbod <behdad@behdad.org> | 2021-11-01 22:17:35 -0600 |
|---|---|---|
| committer | Behdad Esfahbod <behdad@behdad.org> | 2021-11-01 22:17:35 -0600 |
| commit | 38debbab7e287e513968c80a10e69ab054acad4d (patch) | |
| tree | 4a1ff87c80b0ba7e69d7a6701f84d74b703e21f6 | |
| parent | b860b44229dbde49e8a1ed34257b1a70bb2401ee (diff) | |
| download | harfbuzz_ng-38debbab7e287e513968c80a10e69ab054acad4d.tar.gz | |
[set] Add successful check in swap()
| -rw-r--r-- | src/hb-bit-set-invertible.hh | 2 | ||||
| -rw-r--r-- | src/hb-bit-set.hh | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/hb-bit-set-invertible.hh b/src/hb-bit-set-invertible.hh index 978d589ab..0832b0fc2 100644 --- a/src/hb-bit-set-invertible.hh +++ b/src/hb-bit-set-invertible.hh @@ -44,6 +44,8 @@ struct hb_bit_set_invertible_t hb_bit_set_invertible_t& operator= (hb_bit_set_invertible_t&& o) = default; friend void swap (hb_bit_set_invertible_t &a, hb_bit_set_invertible_t &b) { + if (likely (!a.s.successful || !b.s.successful)) + return; hb_swap (a.inverted, b.inverted); hb_swap (a.s, b.s); } diff --git a/src/hb-bit-set.hh b/src/hb-bit-set.hh index 9f76e81ce..fd793696b 100644 --- a/src/hb-bit-set.hh +++ b/src/hb-bit-set.hh @@ -44,6 +44,8 @@ struct hb_bit_set_t hb_bit_set_t& operator= (hb_bit_set_t&& other) { hb_swap (*this, other); return *this; } friend void swap (hb_bit_set_t &a, hb_bit_set_t &b) { + if (likely (!a.successful || !b.successful)) + return; hb_swap (a.successful, b.successful); hb_swap (a.population, b.population); hb_swap (a.last_page_lookup, b.last_page_lookup); |