value type does not match

Hi all;

Below is my code where I try to apply addition and division operation into single value of a vector. Below is my code:

Package my_data_types is
Type vector is array (7 downto 0) of integer;
Type vector_next is array (3 downto 0) of integer;
End my_data_types;

LIBRARY ieee;
USE ieee.ALL;
USE ieee.std_logic_arith.all;
USE work.my_data_types.all;

ENTITY adddiv IS
PORT (
Ra : IN vector;
clk : IN bit;
A : OUT vector_next
);
END adddiv;

ARCHITECTURE adddiv OF adddiv IS
type t_temp is array (7 downto 0) of integer;
BEGIN
Process(clk)
variable temp: t_temp;
BEGIN
If clk'event and clk = '1' Then
temp := (((Ra(0) + Ra(1))/2), ((Ra(2) + Ra(3))/2),
((Ra(4) + Ra(5))/2), ((Ra(6) + Ra(7))/2));
End if;
A <= temp(0 to 3) after 20ns;
END PROCESS;
END adddiv;

When I compile, this error occur:
Error (10381): VHDL Type Mismatch error at adddiv.vhd(29): indexed name returns a value whose type does not match "vector_next", the type of the target expression

Can anyone help me..Thanks

(Ra(0) + Ra(1))/2

define these operations manually using custom functions. '+' is not defined for bits.

what is that you exactly want to do?

Hi vipinlal,

I try to apply addition and division operation on single value of a vector. For example I have a vector of ( 2, 2, 3, 3). Then, I want to have like this:
(2+2)/2 and (3+3)/2..it is possible? Thanks for reply

Ok. thats possible.

try declaring 'temp' as vector_next.

Hi vipinlal,

Okay I understand and its work now..Many thanks for your help =)