sgn

int sgn ( const mpreal & v )

friend

Definition at line 2781 of file mpreal.h.

{
    // Please note, this is classic signum function which ignores sign of zero.
    // Use signbit if you need sign of zero.
    return mpfr_sgn(op.mpfr_srcptr());
}

References mpfr_srcptr(), mpreal(), and sgn.

Referenced by sgn.