[Bug libstdc++/79700] std::fabsf and std::fabsl missing from <cmath>

[kip at thevertigo dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79700

--- Comment #14 from Kip Warner <kip at thevertigo dot com> ---
Thanks Jonathan, but I still think you are mistaken in that you don't
understand why the function exists in its various forms. Your explanation is
technical and not philosophical.

Whether it was originally inherited from the standard C library or was a
creature of a C++ WG committee isn't material. And yes, you are being
speculative. 

We can discuss another day the history, design choices, and rationale behind
how floating point calculations have been done. In any event, we are going
around in circles.

But the important thing is that this is thankfully being patched.