How can i swap strings

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C

How can I swap two strings using two variable only?

Posted 24-Aug-12 10:16am

Herambashree

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Wendelius 24-Aug-12 16:35pm

Why would you need to do that? Having an extra variable typically causes no more memory useage than swapping the variable contents

pasztorpisti 24-Aug-12 20:24pm

Its possible and absolutely usless. What do you want to do with this?

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Christian Graus · Accepted Answer · 2012-08-24T10:25:00

Solution 1

Impossible. You cannot. You need somewhere to store one value while it's overwritten by the other

Posted 24-Aug-12 10:25am

Christian Graus

ridoy · Accepted Answer · 2012-08-24T10:40:00

Solution 2

I think it is possible..look below..

char* s1 = "Hello";
char* s2 = "World";
s1 = (char*)((int)s1 + (int)s2);
s2 = (char*)((int)s1 -(int) s2);
s1 = (char*)((int)s1 - (int)s2);
printf("%s:%s", s1, s2);

Posted 24-Aug-12 10:40am

ridoy

Comments

Herambashree 27-Aug-12 9:56am

Than you . It is working Sir.

ridoy 27-Aug-12 12:00pm

glad to help you..mark it as answer if you think it solves your problem