Consider the following code, data MyBaseExpr α where ConstE :: Show α => α -> MyBaseExpr α class Monad
I want to write a monad type class which will specify some basic actions for a DSL (domain-specific language) monad.
开发者_Python百科Why is it that when I shift the exit code, $?, in Perl by eight, I get 255 when I expect it to be -1?The exit status returned by \'wait()\' is a 16-bit value.Of those 16 bits, the hig
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