#11790: (More) missing instances for Identity and Const -------------------------------------+------------------------------------- Reporter: duairc | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D2079 Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * cc: core-libraries-committe (added) * type: bug => feature request @@ -6,1 +6,1 @@ - {{{ + {{{#!hs New description: I made a similar ([https://ghc.haskell.org/trac/ghc/ticket/11210 #11210]) issue a few months ago and submitted a [https://phabricator.haskell.org/D1626 patch] which was accepted. There are some more instances I want to add: {{{#!hs instance Num a => Num (Identity a) instance Real a => Real (Identity a) instance Integral a => Integral (Identity a) instance Fractional a => Fractional (Identity a) instance Floating a => Floating (Identity a) instance RealFrac a => RealFrac (Identity a) instance RealFloat a => RealFloat (Identity a) instance Bits a => Bits (Identity a) instance FiniteBits a => FiniteBits (Identity a) instance IsString => IsString (Identity a) instance Num a => Num (Const a b) instance Real a => Real (Const a b) instance Integral a => Integral (Const a b) instance Fractional a => Fractional (Const a b) instance Floating a => Floating (Const a b) instance RealFrac a => RealFrac (Const a b) instance RealFloat a => RealFloat (Const a b) instance Bits a => Bits (Const a b) instance FiniteBits a => FiniteBits (Const a b) instance IsString => IsString (Const a b) }}} -- Comment: It would be nice to get approval from the CLC on this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11790#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler