public static decimal DecodeDecimal(object value, int scale, int sqltype)
{
var shift = scale < 0 ? -scale : 1;
switch (sqltype & ~1)
{
case IscCodes.SQL_SHORT:
return(DecimalShiftHelper.ShiftDecimalLeft((decimal)(short)value, shift));
case IscCodes.SQL_LONG:
return(DecimalShiftHelper.ShiftDecimalLeft((decimal)(int)value, shift));
case IscCodes.SQL_QUAD:
case IscCodes.SQL_INT64:
return(DecimalShiftHelper.ShiftDecimalLeft((decimal)(long)value, shift));
case IscCodes.SQL_DOUBLE:
case IscCodes.SQL_D_FLOAT:
return((decimal)(double)value);
case IscCodes.SQL_INT128:
return(DecimalShiftHelper.ShiftDecimalLeft((decimal)(BigInteger)value, shift));
default:
throw new ArgumentOutOfRangeException(nameof(sqltype), $"{nameof(sqltype)}={sqltype}");
}
}
public static object EncodeDecimal(decimal d, int scale, int sqltype)
{
var shift = scale < 0 ? -scale : scale;
switch (sqltype & ~1)
{
case IscCodes.SQL_SHORT:
return((short)DecimalShiftHelper.ShiftDecimalRight(d, shift));
case IscCodes.SQL_LONG:
return((int)DecimalShiftHelper.ShiftDecimalRight(d, shift));
case IscCodes.SQL_QUAD:
case IscCodes.SQL_INT64:
return((long)DecimalShiftHelper.ShiftDecimalRight(d, shift));
case IscCodes.SQL_DOUBLE:
case IscCodes.SQL_D_FLOAT:
return((double)d);
case IscCodes.SQL_INT128:
return((BigInteger)DecimalShiftHelper.ShiftDecimalRight(d, shift));
default:
throw new ArgumentOutOfRangeException(nameof(sqltype), $"{nameof(sqltype)}={sqltype}");
}
}
