#14084: Strange behavior of GHC by writing the types in GHCi -------------------------------------+------------------------------------- Reporter: vanto | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: Component: GHCi | Version: 8.0.2 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect result | Unknown/Multiple at runtime | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by hsyl20): * status: new => closed * resolution: => invalid Comment: This behavior is correct. It has nothing to do with `:set +t`. B: `:t 1:2` just shows the inferred type for `1:2` A: {{{ Prelude> 1:2 }}} is equivalent to {{{ Prelude> let it = 1:2 }}} which fails to type-check the inferred type for `1:2` if you don't enable FlexibleContexts. Please [https://downloads.haskell.org/~ghc/8.2.1/docs/html/users_guide/ refer to the manual] and use [https://mail.haskell.org/mailman/listinfo/beginners this mailing-list] instead of the bug tracker when you don't understand GHC's behavior. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14084#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler