C - Check Even and Odd Number using Preprocessor Parameterized Macro in C Language.

C Language Preprocessor Parameterized Macro - In this feature we can define a Macro by passing Parameters (Arguments) and return a value.

In this code snippet we will learn how to check Even and Odd Number by using Preprocessor Parameterized Macro feature in C programming language.

In this example we are defining a Macro names CHECK_EVENODD and pass N to it, macro will replace the logic ((N%2==0)?1:0) by replacing N to number (variable that will declare in main) and this macro will return either 1 or 0.

C Code Snippet - Check Even and Odd Number using Preprocessor Parameterized Macro in C

/*C - Check Even and Odd Number using Preprocessor 
Parameterized Macro in C Language.*/

#include <stdio.h>

#define CHECK_EVENODD(N) ((N%2==0)?1:0)

int main(){
	
	int number;
	
	printf("Enter an integer number: ");
	scanf("%d",&number);
	
	if(CHECK_EVENODD(number))
		printf("%d is an EVEN number.\n",number);
	else
		printf("%d is a ODD number.\n",number);
	
	return 0;
}

    First Run:
    Enter an integer number: 10
    10 is an EVEN number.

    Second Run:
    Enter an integer number: 21
    21 is a ODD number.