nextpow2()

const mpreal mpfr::nextpow2 ( const mpreal & x, mp_rnd_t r = mpreal::get_default_rnd() )

inline

Definition at line 2442 of file mpreal.h.

{
    mpreal y(0, x.getPrecision());
 
    if(!iszero(x))
        y = ceil(log2(abs(x,r),r));
 
    return y;
}