AuroraMiddleware/harfbuzz
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This commit is contained in:
Behdad Esfahbod 2013-05-02 13:59:46 -04:00
parent 6c15ddfe2b
commit e6f19af087
1 changed files with 9 additions and 7 deletions
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16
src/hb-set-private.hh
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@ -45,12 +45,14 @@ struct hb_set_digest_lowest_bits_t
{
ASSERT_POD ();
static const unsigned int mask_bytes = sizeof (mask_t);
static const unsigned int mask_bits = sizeof (mask_t) * 8;
static const unsigned int num_bits = 0
+ (sizeof (mask_t) >= 1 ? 3 : 0)
+ (sizeof (mask_t) >= 2 ? 1 : 0)
+ (sizeof (mask_t) >= 4 ? 1 : 0)
+ (sizeof (mask_t) >= 8 ? 1 : 0)
+ (sizeof (mask_t) >= 16? 1 : 0)
+ (mask_bytes >= 1 ? 3 : 0)
+ (mask_bytes >= 2 ? 1 : 0)
+ (mask_bytes >= 4 ? 1 : 0)
+ (mask_bytes >= 8 ? 1 : 0)
+ (mask_bytes >= 16? 1 : 0)
+ 0;
ASSERT_STATIC (shift < sizeof (hb_codepoint_t) * 8);
@ -65,7 +67,7 @@ struct hb_set_digest_lowest_bits_t
}
inline void add_range (hb_codepoint_t a, hb_codepoint_t b) {
if ((b >> shift) - (a >> shift) >= sizeof (mask_t) * 8 - 1)
if ((b >> shift) - (a >> shift) >= mask_bits - 1)
mask = (mask_t) -1;
else {
mask_t ma = mask_for (a);
@ -81,7 +83,7 @@ struct hb_set_digest_lowest_bits_t
private:
static inline mask_t mask_for (hb_codepoint_t g) {
return ((mask_t) 1) << ((g >> shift) & (sizeof (mask_t) * 8 - 1));
return ((mask_t) 1) << ((g >> shift) & (mask_bits - 1));
}
mask_t mask;
};