[PATCH] D26920: [libc++] Add validation to Stage 2 of num_get

[Eric van Gyzen via Phabricator via cfe-commits]

vangyzen updated this revision to Diff 79625.
vangyzen added a comment.
Herald added a subscriber: emaste.

Restore support for a sign character preceding a "nan"

I accidentally broke +nan and -nan.  Add unit test cases for these,
and update my change to support them.


https://reviews.llvm.org/D26920

Files:
  include/locale
  test/std/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_double.pass.cpp

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