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Speed up hb_set_digest_common_bits_t calcs

This commit is contained in:
Behdad Esfahbod 2012-08-04 17:42:28 -07:00
parent bdc48a879a
commit 3d1b66a35e
1 changed files with 3 additions and 3 deletions
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6
src/hb-set-private.hh
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@ -54,9 +54,9 @@ struct hb_set_digest_common_bits_t
} }
inline void add_range (hb_codepoint_t a, hb_codepoint_t b) { inline void add_range (hb_codepoint_t a, hb_codepoint_t b) {
/* TODO Speedup. */ /* The negation here stands for ~(x-1). */
for (unsigned int i = a; i < b + 1; i++) mask &= -(1 << _hb_bit_storage (a ^ b));
add (i); value &= mask;
} }
inline bool may_have (hb_codepoint_t g) const { inline bool may_have (hb_codepoint_t g) const {