Logical C Sequence Functions

The following logical C functions take one boolean sequence argument input, or two boolean input sequences, left and right, and produce the boolean result sequence.

If the two input sequence arguments are of different lengths the operation will be performed on only the number of elements in the shorter of the two sequences.

The function signatures are of the following two forms:

 
    MCO_RET mco_seq_operator(mco_seq_iterator_h result, 
            mco_seq_iterator_h input); 
             

or

 
    MCO_RET mco_seq_operator(mco_seq_iterator_h result, 
            mco_seq_iterator_h left, 
            mco_seq_iterator_h right); 
             

where operator is one of the following:

mco_seq_not()	The element of the result sequence is the logical not of the corresponding element in input
mco_seq_and()	The element of the result sequence is the logical and of the corresponding elements in left and right
mco_seq_or()	The element of the result sequence is the logical or of the corresponding elements in left and right
mco_seq_xor()	The element of the result sequence is the logical exclusive or of the corresponding elements in left and right

Example

Following is an example code snippet demonstrating a logical operator function:

         
    {
        mco_trans_h trans;
        mco_cursor_t quote_cursor;
        Quote quote;
        mco_seq_iterator_t high_iterator, low_iterator;
        mco_seq_iterator_t eq_iterator, result_iterator;
        MCO_RET rc;
        ...
         
        for (rc = mco_cursor_first(trans, &quote_cursor); 
            rc != MCO_S_CURSOR_END; 
            rc = mco_cursor_next(trans, &quote_cursor)) 
        {
            Quote_from_cursor(trans, &quote_cursor, &quote);
            Quote_high_iterator(&quote, &high_iterator);
            Quote_low_iterator(&quote, &low_iterator);
            ...
            rc = mco_seq_eq_float(&eq_iterator, &low_iterator, &high_iterator);
            rc = mco_seq_not(&result_iterator, &eq_iterator);
            
            ...
        }
        ...
    }