Difference between comp4 and comp5

amr · New User Joined: 04 Aug 2005 Posts: 2

what is difference between comp4 and comp5 ?

shivashunmugam Muthu · Posted: Thu Aug 04, 2005 5:19 pm Post subject: Re: cobol

COMP-4 is similar to Binary & COMP

COMP-5 is for display usage type.. termed as native binary

for more explanation refer COBOL lang reference

priyesh.agrawal · Posted: Thu Aug 04, 2005 5:52 pm Post subject: Re: cobol

Check out this earlier post....It gives a good description about them.....

http://ibmmainframes.com/viewtopic.php?t=146

Regards,

Priyesh.

thanooz · Active User Joined: 28 Jun 2005 Posts: 105

hi amr

comp4 is just like as binary or comp

01 x pic 9(4) comp.

in above example it takes 2 bytes.

01 x pic 9(5) comp5.

in this example also it takes 4 bytes . it is not depend on legth specified in cobol.It will consontrate on value wich you stored in this field.

Table 5. Ranges in value of COMP-5 data items
PICTURE Storage representation Numeric values
S9(1) through S9(4) Binary halfword (2 bytes) -32768 through +32767
S9(5) through S9(9) Binary fullword (4 bytes) -2,147,483,648 through
+2,147,483,647
S9(10) through S9(18)Binary doubleword (8 bytes)
-9,223,372,036,854,775,808 through +9,223,372,036,854,775,807

9(1) through 9(4) Binary halfword (2 bytes) 0 through 65535
9(5) through 9(9) Binary fullword (4 bytes) 0 through 4,294,967,295
9(10) through 9(18) Binary doubleword (8 bytes)
0 through 18,446,744,073,709,551,615

thanks,
thanooz.