All failures in the libc++ test suite will be documented here.
Note: glibc >= 2.16 is required for full C11 compatibility.

Test Suite Run Information:
Date: 7/31/2014
Compiler: Clang Tip-of-Tree (r214433), Built 7/31/2014
ABI: libc++abi
C Library: eglibc 2.19
Platform: x86_64-linux-gnu
Kernel: 3.13.0-32-generic
Distribution: Ubuntu 14.04
Run By: Eric Fiselier (eric at efcs dot ca)

depr/
 depr.c.headers/
  math_h.pass.cpp: Fails a static assert that the return type of
   isnan(double) and isinf(double) is a bool. see PR18382.
input.output/
 iostream.format/
  ext.manip/
   get_time.pass.cpp: Local representation is 'Sat 31 Dec 2061
    11:55:59 PM EST' which does not match the expected result in the
    test.
   put_time.pass.cpp: idem.
localization/
 locale.categories/
  category.collate/
   locale.collate.byname/
    compare.pass.cpp: In the C local, sorting order seems OK, but not
     in the "" and en UTF8 locals. Needs investigation.
  category.ctype/
   locale.ctype.byname/
    tolower_1.pass.cpp: Needs Investigation.
    tolower_many.pass.cpp: idem.
    toupper_1.pass.cpp: idem.
    toupper_many.pass.cpp: idem.
    widen_1.pass.cpp: idem.
    widen_many.pass.cpp: idem.
  category.monetary/
   locale.money.get/
    locale.money.get.members/
     get_long_double_ru_RU.pass.cpp: Needs investigation.
     get_long_double_zh_CN.pass.cpp: idem.
    locale.money.put.members/
     put_long_double_ru_RU.pass.cpp: idem.
     put_long_double_zh_CN.pass.cpp: idem.
   locale.moneypunct.byname/
    decimal_point.pass.cpp: Expects ',' for RU, but gets '.'.
    thousands_sep.pass.cpp: idem.
  category.numeric/
   locale.nm.put/
    facet.num.put.members/
     put_long_double.pass.cpp: Fails due to getting '+nan' rather
      than just 'nan'.
  category.time/
   locale.time.get.byname/
    get_date.pass.cpp: Needs investigation.
    get_date_wide.pass.cpp: idem.
    get_one.pass.cpp: idem.
    get_one_wide.pass.cpp: idem.
    get_weekday.pass.cpp: idem.
    get_weekday_wide.pass.cpp: idem.
   locale.time.put.byname/
    put1.pass.cpp: idem.
   locale.time.put/
    locale.time.put.members/
     put2.pass.cpp: idem.
  facet.numpunct/
   locale.numpunct.byname/
    grouping.pass.cpp: idem.
    thousands_sep.pass.cpp: idem.
numerics/
 c.math/
  cmath.pass.cpp: Fails for same reason as depr/depr.c.headers/math_h.pass.cpp
re/
 re.alg/
  re.alg.match/
   basic.pass.cpp: Needs investigation.
   ecma.pass.cpp: idem.
   extended.pass.cpp: idem.
  re.alg.search/
   awk.pass.cpp: idem.
   basic.pass.cpp: idem.
   ecma.pass.cpp: idem.
   extended.pass.cpp: idem.
 re.traits/
  lookup_collatename.pass.cpp: idem.
strings/
 c.strings/
  cuchar.pass.cpp: Can't find cuchar header
  version_cuchar.pass.cpp: idem.