lgamma()

const mpreal mpfr::lgamma ( const mpreal & v, int * signp = 0, mp_rnd_t rnd_mode = mpreal::get_default_rnd() )

inline

Definition at line 2529 of file mpreal.h.

{
    mpreal x(v);
    int tsignp;
 
    if(signp)   mpfr_lgamma(x.mpfr_ptr(),  signp,v.mpfr_srcptr(),rnd_mode);
    else        mpfr_lgamma(x.mpfr_ptr(),&tsignp,v.mpfr_srcptr(),rnd_mode);
 
    return x;
}