miyuki added inline comments.
================
Comment at:
test/std/numerics/complex.number/complex.transcendentals/acosh.pass.cpp:59
+ {
+ assert(r.real() == 0);
+ assert(!std::signbit(r.real()));
----------------
Ideally, I would prefer some approximate comparison instead of `==` here, but
`is_about` is not suitable for arguments that have zero or near-zero sum.
That's why I used exact comparison (several other cases in this file do the
same). This test passes on x86_64, so hopefully it will work the same way in
any IEEE-compliant environment.
https://reviews.llvm.org/D41629
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