FLAG – Check if flag is set

This function checks if binary flags are set within a byte, but performed in decimal number form, to avoid having to convert values to binary. The function returns 1 if the bits in <check> are also set in<source>. On the contrary, it returns 0.

FLAG(<source>,<check>)
Where:
<source>
The string to search.
<check>
The list of characters to be searched for, within the string.
For example, 7 is binary 00000111, 4 is binary 00000100 and 3 is binary 00000011. The following command returns 0: 
FLAG(7,4)
The following command returns 1: 
FLAG(7,3)
The following command returns 0: 
FLAG(4,3)