Why do I get a segmentation fault when I try to show a negative double or float? There is no problem for negative integers.
Is there a way to specify the package name for a module for the :browse, :load or :module commands in ghci (version 6.12.1) ?
While commenting on new features in ghci I wished that ghci had the ability to declare type declaration and declaring new ADT types, someone informed that it was indeed possible, and after searching I
I am studying Haskell and use Emacs+Haskell mode as my editor. After playing some simple expressions in GHCi, I am wondering whether these IDE/edit开发者_如何学Pythonor functionalitythat exist in Vi
I\'m writing my first big project in Haskell and I\'d like to split it across multiple files. So far, I have written two modules, Parse and Eval. I\'d like to have a Main module that just includes the
Specs GHC 6.12.1 Mac OS X 10.6.4 x64 MacBook Pro Problem I\'m having trouble using let syntax. The following code refuses to compile:
开发者_运维知识库I\'m using ghci 6.8.2 on Ubuntu. Does ghci use a configuration file where we can do some initial setup?. E.g.: :set prompt \"ghci> \".Have you tried adding :set prompt \"ghci> \
In GHCi: Prelude> (+3) 2 5 Prelude> (*3) 2 6 Prelude> (/3) 2 0.6666666666666666 Prelude> (-3) 2 No instance for (Num (t -> t1))
Consider the following test function: testError :: (Error e, MonadError e m) => Bool -> m () testError True= return ()
I have the following function defined: ex 1 x = 1 ex 0 x = 0 ex b x = b ** x Then, when I execute the following: