#include<stdio.h>
#include<error.h>
#include<malloc.h>
#include<stdlib.h>
void swap(void *p1,void *p2,const unsigned size)
{
char *buff=(char*) malloc(size*sizeof(char));
if(!buff)
{
perror("malloc");
exit(11);
}
memcpy(buff,p1,size);
memcpy(p1,p2,size);
memcpy(p2,buff,size);
free(buff);
return;
}
int main()
{
int a=12,b=24;
char c='a',d='b';
float e=1.1f,f=2.3f;
char wrd1[]="Hello";
char wrd2[]="Bye";
char *p=wrd1;
char *q=wrd2;
swap(&a,&b,sizeof(int));
swap(&c,&d,sizeof(char));
swap(&e,&f,sizeof(float));
swap(&p,&q,sizeof(p));
printf("%d\t%d\n",a,b);
printf("%c\t%c\n",c,d);
printf("%f\t%f\n",e,f);
printf("%s\t%s\n",p,q);
return 0;
}
Its a generic function not a macro, I know but the idea would be same.-- Saurabh Singh B.Tech (Computer Science) MNNIT ALLAHABAD -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
