---------- Forwarded message ----------
From: Rajesh Kumar <[email protected]>
Date: Sun, Oct 9, 2011 at 2:58 PM
Subject: why we can not swap values using macro?
To: [email protected]


why this code doesn't swap values of x and y?

#include<stdio.h>
#define swap(a,b,c) c t;t=a,a=b,b=t;
main()
{
float x=10,y=20;
float *p,*q;
p=&x,q=&y;
swap(p,q,float *);
printf("%d %d\n",x,y);
}


-- 
Regards
Rajesh Kumar





-- 
Regards
Rajesh Kumar

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