diff options
Diffstat (limited to 'web/server/h2o/libh2o/deps/klib/kbit.h')
-rw-r--r-- | web/server/h2o/libh2o/deps/klib/kbit.h | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/web/server/h2o/libh2o/deps/klib/kbit.h b/web/server/h2o/libh2o/deps/klib/kbit.h deleted file mode 100644 index 3793cf837..000000000 --- a/web/server/h2o/libh2o/deps/klib/kbit.h +++ /dev/null @@ -1,30 +0,0 @@ -#ifndef KBIT_H -#define KBIT_H - -#include <stdint.h> - -static inline uint64_t kbi_popcount64(uint64_t y) // standard popcount; from wikipedia -{ - y -= ((y >> 1) & 0x5555555555555555ull); - y = (y & 0x3333333333333333ull) + (y >> 2 & 0x3333333333333333ull); - return ((y + (y >> 4)) & 0xf0f0f0f0f0f0f0full) * 0x101010101010101ull >> 56; -} - -static inline uint64_t kbi_DNAcount64(uint64_t y, int c) // count #A/C/G/T from a 2-bit encoded integer; from BWA -{ - // reduce nucleotide counting to bits counting - y = ((c&2)? y : ~y) >> 1 & ((c&1)? y : ~y) & 0x5555555555555555ull; - // count the number of 1s in y - y = (y & 0x3333333333333333ull) + (y >> 2 & 0x3333333333333333ull); - return ((y + (y >> 4)) & 0xf0f0f0f0f0f0f0full) * 0x101010101010101ull >> 56; -} - -#ifndef kroundup32 // round a 32-bit integer to the next closet integer; from "bit twiddling hacks" -#define kroundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x)) -#endif - -#ifndef kbi_swap -#define kbi_swap(a, b) (((a) ^= (b)), ((b) ^= (a)), ((a) ^= (b))) // from "bit twiddling hacks" -#endif - -#endif |