#8447: A combination of type-level comparison and subtraction does not work for 0 ----------------------------------------------+---------------------------- Reporter: nushio | Owner: Type: bug | Status: new Priority: low | Milestone: Component: Compiler (Type checker) | Version: 7.6.3 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: GHC rejects valid program | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: ----------------------------------------------+---------------------------- Comment (by carter): This seems to tie into having good coverage checking for pattern matching, at least naively. (and the fact that we currently don't really have a solver for type level nats). thoughts? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8447#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler