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A comment on Rust and C++ Interoperability in Chrome. Parent comment

Re:Rust and C++ Interoperability in Chrome by rightbyte on Wednesday August 19, 2020 @04:49PM (#24216223)
Ye, everyone know it is:

    #define PI 3.1415927410125732421875
that is the float closest to pi or that there is the GNU extension USE_FUNKY_DEFINES-something with M_PI for cmath. (I know you meant constexpr:ions).
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Re:Rust and C++ Interoperability in Chrome by Const-me on Thursday August 20, 2020 @07:12AM (#24222017)
Long time ago when computers were 32-bit I used to write something like this in C++:

    inline double pi()
    {
        __asm fldpi;
    }
On old enough compilers, this will get you 80-bit version of pi, more precision than even double. Completely useless now, modern compilers no longer emit x87 code.
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