lookup64 addr index looks up the bit stored at bit index index using a
bitmap starting at the address addr. Looks up the 64-bit word containing
the bit and then the bit in that word. The caller must make sure that the
64-bit word at the byte address (addr + index / 64) * 8 is legally
accessible memory.
Moduleunicode-data-0.4.0.1Haskell2010
Unicode.Internal.Bits
Fast, static bitmap lookup utilities
- 2 values
- Packageunicode-data-0.4.0.1
- Exports2
- LanguageHaskell2010
- LicenceApache-2.0
- SourceBits.hs
lookupIntN addr index looks up for the index-th 8-bits word in
the bitmap starting at addr, then convert it to an Int.
The caller must make sure that:
ceiling (addr + (n * 8))is legally accessibleWord8.