#define FUN(a,b,c) c t; t=a;a=b;b=t;
int main()
{
int a=2,b=3;
int *x,*y;
x=&a,y=&b;
FUN(x,y,int *);
printf("%d %d \n",a,b);
return 0;
}
why doesnt this macro swap pointers wen it can work for variables??
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