web development Lectures

 

LEC: 15

INLINE FUNCTION

working from function call to function declaration :

This can become overhead if the execution time of function is less than the switching time from the caller function to called function.

• C++ provides an inline functions to reduce the function call overhead. Inline function is a function that is expanded in line when it is called.
• When the inline function is called whole code of the inline function gets inserted or substituted at the point of inline function call.
• This substitution is performed by the C++ compiler at compile time. 

NOTE:-

compiler will ignore your request if your function have following:-

• if function contains any loop.
• If function is recursive.
• If function contains switch or goto statements.
• If function have return type other than void.

SYNTAX:

inline return_type function_name(Parameters)

{

        ...code....

}

CALLING:

function_name(Arguments);

Source Code for Call By value

#include<iostream> using namespace std; inline void print(int a) {     cout<<"The value of a : "<<a<<endl; } int main(){     //int a=9;     for(int i=0;i<10;i++)     {             print(i);     }     return 0; }