selfRound method
Implementation
Big selfRound([int? dp, RoundingMode? roundingMode]) {
if (dp == null) {
dp = 0;
} else if (dp != ~~dp || dp < -maxDp || dp > maxDp) {
throw BigError(
code: BigErrorCode.dp,
);
}
return _round(
Big(this),
dp + e + 1,
roundingMode,
);
}