#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: strings 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 #11312, #9719 | Wiki Page: | -------------------------------------+------------------------------------- Comment (by winter): I don't think it's a good idea to change the string literal desguaring: there're too many libraries rely on the old `Addr#` desugaring behaviour, changing it will break them. And null terminate modified UTF-8 strings are useful: for example a filepath literal. It's also more compact, which is why we choose it in the first place. So no matter what, i will ask that new desugaring literals should be added together with a new syntax, e.g. the primitive version has already differ in syntax: `##` vs `#`. I would propose adding a new syntax `""...""`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/5218#comment:80 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler