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| -rw-r--r-- | docs/users_guide/bugs.rst | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/docs/users_guide/bugs.rst b/docs/users_guide/bugs.rst index 8734b86e96..d6e1970fea 100644 --- a/docs/users_guide/bugs.rst +++ b/docs/users_guide/bugs.rst @@ -438,31 +438,6 @@ The Foreign Function Interface single: hs_init single: hs_exit -.. _infelicities-operator-sections: - -Operator sections -^^^^^^^^^^^^^^^^^ - -The Haskell Report demands that, for infix operators ``%``, the following -identities hold: - -:: - - (% expr) = \x -> x % expr - (expr %) = \x -> expr % x - -However, the second law is violated in the presence of undefined operators, - -:: - - (%) = error "urk" - (() %) `seq` () -- urk - (\x -> () % x) `seq` () -- OK, result () - -The operator section is treated like function application of an undefined -function, while the lambda form is in WHNF that contains an application of an -undefined function. - .. _haskell-98-2010-undefined: GHC's interpretation of undefined behaviour in Haskell 98 and Haskell 2010 |