In ILE C, when you use the __digitsof operator
with a packed decimal data type the result is an integer
constant. The __digitsof operator can be applied to a packed
decimal data type or a packed decimal constant expression. The __digitsof operator
returns the total number of digits n in a packed decimal data
type.
To determine the number of digits n in a packed decimal data
type, follow the example shown in Figure 1:
Figure 1. Example of Code that Determines the Number
of Digits in a Packed Decimal Data Type.
#include <decimal.h>
int n,n1;
decimal (5, 2) x;
n = __digitsof(x); /* the result is n=5 */
n1 = __digitsof(1234.567d); /* the result is n1=7 */
In ILE C++, when you use the member
function DigitsOf() with a _DecimalT class template
the result is an integer constant. The member function DigitsOf() can
be applied to a _DecimalT class template object. The member
function DigitsOf() returns the total number of digits n in
a _DecimalT class template object.
To determine the number of digits n in a _DecimalT class
template object, follow the example shown in Figure 2:
Figure 2. Example
of Code that Determines the Number of Digits in a _DecimalT Class
Template Object
#include <bcd.h>
int n,n1;
_DecimalT <5, 2> x;
n = x.DigitsOf(); // the result is n=5
In ILE C, when you use the 
In ILE C++, when you use the member
function