[Bug 248190] std::fabs is missing from <cstdlib> in 12.1-STABLE for C++17+

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248190

Yuri Victorovich <yuri at freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|std::fabs is missing in     |std::fabs is missing from
                   |12.1-STABLE                 |<cstdlib> in 12.1-STABLE
                   |                            |for C++17+

--- Comment #2 from Yuri Victorovich <yuri at freebsd.org> ---
(In reply to Yuri Pankov from comment #1)

The link says:
Defined in header <cmath>
Defined in header <cstdlib>  (since C++17)

Thank you for pointing this out.

I changed the subject. std::fabs is only missing from <cstdlib> for C++17+.

> #include <cstdlib>
> 
> int main() {
> 	std::fabs(1.);
> }


> $ c++ -std=c++17 -o fabs fabs.cpp
> fabs.cpp:4:7: error: no member named 'fabs' in namespace 'std'
>         std::fabs(1.);
>         ~~~~~^
> 1 error generated.

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