Add iswblank for libcxx.

We have similar degenerate implementations for all the other isw* functions,
so it's weird to exclude just one.

Change-Id: I659b97930e68598826c4882bb59f4146870fb6a0
Merge "Add iswblank for libcxx."
Fix signed vs unsigned comparison.

Otherwise GCC 4.9 complains.

Change-Id: I7cd3c5e8c78fda709130ca88a85fa1512e6fc024
Merge "Fix signed vs unsigned comparison."
Switch to gdtoa.

This gives us a real strtold for LP64 and fixes various LP64
bugs.

Bug: 13563801
Change-Id: I277858d718ee746e136b6b6308a495ba50dfa488
Merge "Switch to gdtoa."
Use FLT_ROUNDS in LP64 strtold.

Change-Id: I75323be6e1cadb00770fcdd08422836b03737416
Merge "Use FLT_ROUNDS in LP64 strtold."
Clean up <machine/ieee.h>.

The upstream intention was for this to be architecture-dependent, but it's a
lot clearer if we just have one copy.

Change-Id: I4e8310496145f9f411cd2e847c8cd023b1d758e9
Switch fpclassify over to ieee_ext.

Change-Id: I441bb7f715da24e1c04b0386ad9dcde0ea8c797c
Merge "Clean up <machine/ieee.h>."
Merge "Switch fpclassify over to ieee_ext."
Regenerate the NOTICE files.

Change-Id: Iac666f69b930e31bbeac3438812d544c6af55b0f
Merge "Regenerate the NOTICE files."
Upgrade to current vfprintf.

This gets us various bug fixes and missing C99 functionality.

Bug: https://code.google.com/p/android/issues/detail?id=64886
Change-Id: Ie9f8ac569e9b5eec1e4a1faacfe2c21662eaf895
Changes our ctype identifiers to match the BSDs

This is to make it possible to adopt the BSDs' implementations for a few locale
APIs in libc++ rather than writing our own, nearly identical, code.

Change-Id: I482acd4ece83aa4ec9eb0c7acf48f3686794bcc3
Merge "Changes our ctype identifiers to match the BSDs"
Upgrade our <ctype.h> implementation to OpenBSD head.

Adding the perfunctory <ctype.h> tests showed that we'd accidentally
dropped several symbols. This puts everything back in its proper place
and switches us to upstream head at the same time.

Change-Id: Ib527ad280c9baded81e667fa598698526d93e66f
Merge "Upgrade our <ctype.h> implementation to OpenBSD head."
Merge "Upgrade to current vfprintf."