library ieee; use ieee.std_logic_1164.all; entity record_test is port ( o : out integer ); end record_test; architecture rtl of record_test is type t_record is record int : integer; end record t_record; function get_constants(choice : std_logic) return t_record is variable v_const : t_record; begin if choice = '0' then v_const := (int => 27.777 us / 83.333 ns); elsif choice = '1' then v_const := (int => 26.316 us / 83.333 ns); end if; return v_const; end function get_constants; constant rec_constant : t_record := get_constants('0'); begin o <= rec_constant.int; end rtl;