C++ Programming: A Practical Approach

Welcome to C++ 15

FAQ

1.9 Which function will be called if the following function call is made?

max(6.6,1999.90,11.5)

max(int,int,int);

Ans. The compiler resolves the call to overloaded function as follows:

(i) Exact Match: The compiler searches the function of the exact parameters with no con-

versions or only trivial conversions. Examples of trivial conversions are array name to

pointer, function name to pointer to a function. An example of conversion of array name

to pointer is as follows.

int p[ ]={10,5,1234};

fun(p); // Calls function fun(int*);

if it exists

(ii) Function signature match using integral promotions: For example, char to int, short to

int, fl oat to double, and such.

char ch='A';

fun(ch); // Calls function fun(int); ...