diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-bit-page.hh')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-bit-page.hh | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/thirdparty/harfbuzz/src/hb-bit-page.hh b/thirdparty/harfbuzz/src/hb-bit-page.hh index 9759836654..cbe918ee40 100644 --- a/thirdparty/harfbuzz/src/hb-bit-page.hh +++ b/thirdparty/harfbuzz/src/hb-bit-page.hh @@ -40,11 +40,18 @@ struct hb_bit_page_t bool is_empty () const { - for (unsigned int i = 0; i < len (); i++) + for (unsigned i = 0; i < len (); i++) if (v[i]) return false; return true; } + uint32_t hash () const + { + uint32_t h = 0; + for (unsigned i = 0; i < len (); i++) + h = h * 31 + hb_hash (v[i]); + return h; + } void add (hb_codepoint_t g) { elt (g) |= mask (g); } void del (hb_codepoint_t g) { elt (g) &= ~mask (g); } |