Programming in C
Programming in C
4th Edition
ISBN: 9780321776419
Author: Stephen G. Kochan
Publisher: Addison-Wesley
Question
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Chapter 13, Problem 1E
Program Plan Intro

Program Plan:

  • Include the necessary header files into program.
  • Declare the “typedef” variable in return type of “integer”.
  • Define the function named “testFunction()” which returns “1” in return type of integer.
  • Define the main method.
    • Define the function.
    • Declare the object for “FunctionPtr”.
    • Call the “testFunction” function and store the result in “objPtr”.
    • Print the result on screen.

Expert Solution & Answer
Check Mark
Program Description Answer

The following program is demonstrates the definition of “typedef” variable which represents a pointer to a function.

Explanation of Solution

Program:

//Include required header files

#include <stdio.h>

/*Definition of typedef function*/

typedef int(*FunctionPtr)(void);

/*Function definition*/

int testFunction(void)

{

//Return statement

return 1;

}

//Main funciton

int main(void)

{

//Function definition

int testFunction(void);

//Object declaration

FunctionPtr objPtr;

//Function is called by pointer

objPtr = testFunction;

//Print statement

printf("%i\n", objPtr());

//Return statement

return 0;

}

Sample Output

1

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