Binary data type with other output method

Hello all,

i'm in the need to create a boolean datatype which returns an integer
instead of the usual 't'/'f'. Before anyone starts to point me at
casts: it's a lot overhead to cast some hundred occurances beside the
source of trouble, if you forget one.

And so i asked myself, if there is an easier way than my current
approach. Right now i'm creating input/output functions, the datatype
and a lot of casts and operators (350 lines SQL) just to get another
output:

CREATE FUNCTION boolean2_in(cstring)
RETURNS boolean2
AS 'boolin'
LANGUAGE internal STRICT;
CREATE FUNCTION boolean2_out(boolean2)
RETURNS cstring
AS 'int2out'
LANGUAGE internal STRICT;
CREATE FUNCTION boolean2_recv(internal)
RETURNS boolean2
AS 'boolrecv'
LANGUAGE internal STRICT;
CREATE FUNCTION boolean2_send(boolean2)
RETURNS bytea
AS 'boolsend'
LANGUAGE internal STRICT;

CREATE TYPE boolean2 (
input = boolean2_in,
output = boolean2_out,
receive = boolean2_recv,
send = boolean2_send,
internallength = 1,
alignment = char,
storage = plain,
passedbyvalue
);

CREATE CAST (boolean2 AS boolean)
WITHOUT FUNCTION
AS ASSIGNMENT;
CREATE CAST (boolean AS boolean2)
WITHOUT FUNCTION
AS ASSIGNMENT;

... and so on.

Can i have this in an easier way?

Kind regards

--
Andreas 'ads' Scherbaum
German PostgreSQL User Group