Merge pull request #192 from boostorg/floff #184

Job	Run time
posix (clang, clang++-12, 03,11,14,17,20, ubuntu-22.04, clang-12)	11m 19s
posix (clang, clang++-13, 03,11,14,17,20, ubuntu-22.04, clang-13)	11m 2s
posix (clang, clang++-14, 03,11,14,17,20, ubuntu-22.04, clang-14)	11m 4s
posix (clang, clang++-14, 03-gnu,11-gnu,14-gnu,17-gnu,20-gnu, ubuntu-22.04, clang-14)	11m 4s
posix (clang, clang++-15, 03,11,14,17,20, ubuntu-22.04, clang-15, deb http://apt.llvm.org/jammy/ ...	11m 4s
posix (clang, clang++-16, 03,11,14,17,20, ubuntu-22.04, clang-16, deb http://apt.llvm.org/jammy/ ...	11m 14s
posix (clang, clang++-17, 03,11,14,17,20, ubuntu-22.04, clang-17, deb http://apt.llvm.org/jammy/ ...	11m 22s
	1h 18m 9s

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