How can I change the content of two pointers?

Question

1.00/5 (1 vote)

See more:

I have this:
char * mio;

char * tuo;

tuo = mio;

but is there a way if I want to change only the content of one pointer?

example:

if mio = "ciao";

and tuo = "ciao";

can I change the content of only mio and not tuo?

What I have tried:

I tried to search on internet but I don't find

Posted 4-Mar-24 22:37pm

Member 14594285

Updated 4-Mar-24 23:00pm

v3

Add a Solution

Comments

KarstenK 6-Mar-24 3:07am

your question makes clear that you need some basic tutorials about pointers. Take the time, it will be worth it.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard Deeming · Accepted Answer · 2024-03-04T23:19:00

No. If you have two pointers pointing to the same thing, then changes to the thing they point to will be visible to both.

That would be like saying Alice and Bob live in the same house, and I want to demolish Bob's house without touching Alice's house.

You would need to make a copy of the pointed-to thing, change one of the pointers to point to the new copy, then change that copy.

CPallini · Accepted Answer · 2024-03-05T00:01:00

Solution 2

I strongly suggest you to read a good book on the C/C++ programming languages. Also, reading some introductory material on pointers. As an example, for instance C Pointers (With Examples)[^], could be a start.

Posted 5-Mar-24 0:01am

CPallini