scale_pow2_() [1/2]

double fl::detail::scale_pow2_ ( double p, int k )

inline

Definition at line 116 of file math.cpp.hpp.

                                                        {
    const int a = k / 2;
    const int b = k - a;
    DoubleBits fa, fb;
    fa.u = static_cast<u64>(a + 1023) << 52;
    fb.u = static_cast<u64>(b + 1023) << 52;
    return (p * fa.f) * fb.f;
}

References fl::detail::DoubleBits::f, fl::FL_NO_EXCEPT, and fl::detail::DoubleBits::u.