[all-commits] [llvm/llvm-project] 9f4022: [libc++] Avoid <climits> dependency in <thread>

[Joerg Sonnenberger via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9f4022ffeb20eff91c7461828592dc812ee5a28e
      https://github.com/llvm/llvm-project/commit/9f4022ffeb20eff91c7461828592dc812ee5a28e
  Author: Joerg Sonnenberger <joerg at bec.de>
  Date:   2021-03-31 (Wed, 31 Mar 2021)

  Changed paths:
    M libcxx/include/thread

  Log Message:
  -----------
  [libc++] Avoid <climits> dependency in <thread>

The standard guarantees sleep durations of 2^63-1 nanoseconds to work.
Instead of depending on INT64_MAX or ULONGLONG_MAX to exist via the
header pollution, fold the constant directly. That has the additional
positive side effect that it avoids long double arithmetic bugs in GCC.

Differential Revision: https://reviews.llvm.org/D99516