%BITOR(expr:expr{:expr...})%BITOR returns the bit-wise ORing of the bits of all the arguments. That is, the result bit is ON when any of the corresponding bits in the arguments are ON, and OFF otherwise.
The arguments to this built-in function can be either character or numeric. For numeric arguments, if they are not integer or unsigned, they are first converted to integer. If the value does not fit in an 8-byte integer, a numeric overflow exception is issued.
%BITOR can have two or more arguments. All arguments must be the same type, either character or numeric. However, when coded as keyword parameters, these two BIFs can have only two arguments. The result type is the same as the types of the arguments. For numeric arguments, the result is unsigned if all arguments are unsigned, and integer otherwise.
The length is the length of the largest operand. If the arguments have different lengths, they are padded on the left with bit zeros for numeric arguments. Shorter character arguments are padded on the right with bit zeros.
%BITOR can be coded in any expression. It can also be coded as the argument to a File or Definition Specification keyword if all arguments are known at compile-time. If all arguments of this built-in function are hex literals, the compiler produces a constant-folded result that is a hex literal.
Please see Figure 194 for an example demonstrating the use of %BITOR.
For more information, see Bit Operations or Built-in Functions.