Advanced Programming Techniques in C/

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Calling Functions

Calling Functions

Learn how to call a function using its address.

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Let’s see how we can call a function using its address in memory.

Example program

C
# include <stdio.h> 

void display( ) ; 

int main( ) 

{

	void (*p)( ) ; 

	// One way

	display() ; 

	p = display ; 

	// Two more ways

	( *p )( ) ;

	p( ) ;

}

void display( ) 

{

	printf ( "Hello\n" ) ; 

}

Explanation

Normally a function is called using its name, such as the call, display( ), in the code above.

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