id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
1267	Strictness of Integer's enumFrom	sjanssen@…		"According to the Haskell report ""For all four of these Prelude numeric types, all of the enumFrom family of functions are strict in all their arguments."" (referring to Int, Integer, Float, Double).  However, Integer's enumFrom and enumFromThen are lazy in their parameters.

To reproduce:

main = print $ null [undefined :: Integer ..]

This yields ""False"", where it should yield _|_."	bug	closed	low		libraries/base	6.6	duplicate			Unknown/Multiple	Unknown/Multiple		Easy (less than 1 hour)