#5218: Add unpackCStringLen# to create Strings from string literals -------------------------------------+------------------------------------- Reporter: tibbe | Owner: thoughtpolice Type: feature request | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.0.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #5877 #10064 | Differential Rev(s): Phab:D2443 Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): Regarding comment:56, I don't think we would want to give every string literal the overhead of a full heap object. Even just adding a length as is proposed in this ticket is adding a significant binary size overhead for small strings, which occur quite often. The additional few words that a `ByteArray` closure would bring is far too expensive to stomach. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/5218#comment:57 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler