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C Exercises: Show a function returning pointer

C Pointer : Exercise-15 with Solution

Write a program in C to show how a function returning pointer.

Pictorial Presentation:

C Exercises: Pictorial: Show a function returning pointer.

Sample Solution:

C Code:

#include <stdio.h>
int* findLarger(int*, int*);
void main()
{
 int numa=0;
 int numb=0;
 int *result;
 	printf("\n\n Pointer : Show a function returning pointer :\n"); 
	printf("--------------------------------------------------\n");
   printf(" Input the first number : ");
   scanf("%d", &numa);
   printf(" Input the second  number : ");
   scanf("%d", &numb); 	

 result=findLarger(&numa, &numb);
 printf(" The number %d is larger.  \n\n",*result);
}

int* findLarger(int *n1, int *n2)
{
 if(*n1 > *n2)
  return n1;
 else
  return n2;
}

Sample Output:

 Pointer : Show a function returning pointer :                                                                
--------------------------------------------------                                                            
 Input the first number : 5                                                                                   
 Input the second  number : 6                                                                                 
 The number 6 is larger.

Flowchart:

Flowchart: Show a function returning pointer

C Programming Code Editor:

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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP