# Check EVEN or ODD using Macro in C language

In this post, we are going to implement a C program, that will read an integer number check whether it is EVEN or not by using Macros.
Submitted by IncludeHelp, on April 22, 2018

There are many ways to check whether a given number is EVEN or ODD, which we have already wrote in other posts; here you can also read them

There is another way, which we are going to implement here...

We will check whether a given number is EVEN or ODD by using Macro (Read more: Macro in C). In the Macro definition, we will use condition operator (ternary operator) to validate the conditions.

## C program to check EVEN or ODD using Macros in C

Macro definitions:

```    #define ISEVEN(n)   ((n%2 == 0) ? 1 : 0)
#define ISODD(n)    ((n%2 != 0) ? 1 : 0)
```

Program:

﻿

```#include <stdio.h>

#define ISEVEN(n)	((n%2 == 0) ? 1 : 0)
#define ISODD(n)	((n%2 != 0) ? 1 : 0)

int main(void)
{

int number;

printf("Enter an integer number: ");
scanf("%d",&number);

if(ISEVEN(number))
printf("%d is an EVEN number\n",number);
else if(ISODD(number))
printf("%d is an ODD number\n",number);
else
printf("An Invalid Input\n");

return 0;
}
```

Output

```    First run:
Enter an integer number: 100
100 is an EVEN number

Second run:
Enter an integer number: 101
101 is an ODD number
```

We can also use One Macro to validate both (EVEN or ODD)

﻿

```if(ISEVEN(number))
printf("%d is an EVEN number\n",number);
else
printf("%d is an ODD number\n",number);
```

TOP Interview Coding Problems/Challenges

 Recommended posts C Tips & Tricks, C++ Tips & Tricks Introduction to Linux (Its modes, Safety, Most popular Applications) Linux Best Distros of 2018 C programming optimization techniques Differences b/w C & Embedded C? Embedded C Interview Q. & A. C programming tips for Embedded Development Basic rules of writing a C program Important points (rules) to remember while writing C/C++ program Top 5 Websites for solving programming challenges Read more...

 Others... Computer G.K. (MCQ) Most viewed pages... Categories...

Languages: » C » C++ » C++ STL » Java » Data Structure » C#.Net » Android » Kotlin » SQL
Web Technologies: » PHP » Python » JavaScript » CSS » Ajax » Node.js » Web programming/HTML
Solved programs: » C » C++ » DS » Java » C#
Aptitude que. & ans.: » C » C++ » Java » DBMS
Interview que. & ans.: » C » Embedded C » Java » SEO » HR
CS Subjects: » CS Basics » O.S. » Networks » DBMS » Embedded Systems » Cloud Computing » Machine learning » CS Organizations » Linux » DOS
More: » Articles » Puzzles » News/Updates