[PATCH] D66836: [libc++] Add `__truncating_cast` for safely casting float types to integers

[Eric Fiselier via Phabricator via cfe-commits]

EricWF updated this revision to Diff 218149.
EricWF marked an inline comment as done.
EricWF added a comment.

Address review comments.

- Document that NaN isn't a supported input.
- Fix spelling mistake.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66836/new/

https://reviews.llvm.org/D66836

Files:
  include/math.h
  test/libcxx/numerics/clamp_to_integral.pass.cpp

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