Constructor with Default Arguments in C++
It is possible in C++ to define constructors with default arguments. For example, the constructor integer(), defined in the previous section (Constructors in C++), can be defined as follows:
integer(int x, int y = 3);
The default value of the argument y is 3. Thus, the statement:
integer a(1);
assigns the value 1 to x variable and 3 to y (by default).
However, the statement:
integer a(1, 5);
assigns 1 to x and 5 to y. The actual parameters, when specified, overrides the default value.
Note: The missing arguments must be the trailing ones.
