Function amount_msat_scale

common/amount.c:366–381

}

WARN_UNUSED_RESULT bool amount_msat_scale(struct amount_msat *val,
					  struct amount_msat msat,
					  double scale)
{
	if (scale != scale || scale < 0)
		return false;

	double scaled = msat.millisatoshis * scale;

	/* If mantissa is < 64 bits, a naive "if (scaled >
	 * UINT64_MAX)" doesn't work.  Stick to powers of 2. */
	if (scaled >= (double)((u64)1 << 63) * 2)
		return false;
	val->millisatoshis = scaled;
	return true;
}

WARN_UNUSED_RESULT bool amount_sat_scale(struct amount_sat *val,
					 struct amount_sat sat,