Width independent functions

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Is it possible to write a function that can detect the input data width automatically? For example, consider the parity function below:

function parity;
  input [31:0] data;
  integer i;
  begin
    parity = 0;
    for (i= 0; i < 32; i = i + 1) begin
      parity = parity ^ data[i];
    end
  end
endfunction

When parity(data) is called, the input data should be limited to 32 bits.

Alternatively, one could write a macro, such as `PARITY(data) in which the system function $bits can detect the width of data and make the macro width-independent. Is it possible to have the same flexibility for functions?

asked 23 secs ago

Ari

647