Pointer Problem

This is a discussion on Pointer Problem within the C++ Programming forums, part of the General Programming Boards category; I'm having this problem in solving the transfer of alphabet into pointer. Below is my code: Code: #include <iostream> using ...

  1. #1
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    Pointer Problem

    I'm having this problem in solving the transfer of alphabet into pointer.
    Below is my code:

    Code:
    #include <iostream>
    using namespace std;
    
    void main()
    {
    	char* ReadChain;
    	
    	*ReadChain = 'A';
    	*(ReadChain + 1) = 'B';
    	*(ReadChain + 2) = 'C';
    
            cout<<"Result = "<<ReadChain<<endl;
    }
    I know it's easier to use array and cstring but I purposely write it in pointer form, which will be incorporated into my serial communication code later.

    Any help and suggestion is well appreciated. Thanks!

  2. #2
    Sweet
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    1. It's int main not void main

    2. You need to allocate memory for the pointer, for example
    Code:
    char * ReadChain = new char[3];
    //Code here
    delete ReadChain;
    Woop?

  3. #3
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    I've just tried to do what you have told me but the result is "ABC" and there is some unknown symbol behind it. How to eradicate this unwanted symbol?

  4. #4
    Sweet
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    Post the latest code.
    Woop?

  5. #5
    Registered User hk_mp5kpdw's Avatar
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    You must allocate an extra character and append a null character to properly terminate such a string. Outputting a C-style string (null terminated character array) writes characters until such time as a null is encountered. If you don't take that into account you get odd results.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
    -Christopher Hitchens

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