Page 313 - DCAP404 _Object Oriented Programming
P. 313
Object-oriented Programming
Notes Self Assessment
Fill in the blanks:
1. A template function may be defined as an ...................... .
2. Template functions and classes are usable for any ...................... .
3. ...................... would consist of instantiating the template definition for specific data type.
4. ...................... errors are relatively easy to find and correct, even if the resulting error
messages are unclear.
5. The identifier can be built-in or user-defined data type, or the ...................... type.
14.2 Classes of Template
Template classes may be defined as the layout and operations for an unbounded set of related
classes. Built in data types can be given as template arguments in the list for template classes.
Syntax
Template < class type 1 , ... >
Class class - name
{
public
type 1 var,
...
};
Suppose you want two different classes for the same data type this can be achieved through the
following code:
# include < iostream.h >
template < class T, int z >
class W
{
public :
T a ;
W ( T q )
{
a = z + q ;
cout << “ a = “ << a << endl ;
}
} ;
int main ( )
{
W < int,10 > one ( 100) ; // Displays a = 110
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