#11143: Feature request: Add index/read/write primops with byte offset for ByteArray# -------------------------------------+------------------------------------- Reporter: vagarenko | Owner: sjakobi Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: newcomers Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4433 Wiki Page: | -------------------------------------+------------------------------------- Comment (by sjakobi): Replying to [comment:9 vagarenko]:
Replying to [comment:8 sjakobi]:
* They relieve the user from doing the byte offset computation. Then what does that `Int# {-byte offset-}` parameter mean?
What I meant is that the user doesn't need to compute the total offset. While a user may use the API you proposed like {{{#!hs indexByteInt16Array# ba (byte_offset + type_offset * int16_size) }}} the other API offers {{{#!hs indexByteInt16Array# ba byte_offset type_offset }}} which IMO is simply more concise and convenient. I hope this answers your question. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11143#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler