bors b1f5b1ba5f auto merge of #8029 : emillon/rust/issue-6804, r=cmr
Hi,

As noted in #6804, a pattern that contains `NaN` will never match because `NaN != NaN`. This adds a warning for such a case. The first commit handles the basic case and the second one generalizes it to more complex patterns using `walk_pat`.
2013-07-25 10:55:47 -07:00
..