Create function with arguments using macros - C Preprocessor

C examples for Preprocessor:Macro

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Description

Create function with arguments using macros

Demo Code

#include <stdio.h>
#define SQUARE(X) X*X/*from w  w w. jav a 2  s .  co  m*/
#define PR(X)   printf("The result is %d.\n", X)

int main(void){
    int x = 5;
    int z;
    
    printf("x = %d\n", x);
    z = SQUARE(x);
    printf("Evaluating SQUARE(x): ");
    PR(z);
    z = SQUARE(2);
    printf("Evaluating SQUARE(2): ");
    PR(z);
    printf("Evaluating SQUARE(x+2): ");
    PR(SQUARE(x+2));
    printf("Evaluating 100/SQUARE(2): ");
    PR(100/SQUARE(2));
    printf("x is %d.\n", x);
    printf("Evaluating SQUARE(++x): ");
    PR(SQUARE(++x));
    printf("After incrementing, x is %x.\n", x);
    
    return 0;
}

Result


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