Thread: What wrong with my copy strings program?

  1. #1
    Registered User
    Join Date
    Feb 2013
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    33

    What wrong with my copy strings program?

    This code is actually an excerpt from my addressbook program..
    address_count monitors the number of contacts added.
    Current_record monitors the input's position in the array.

    Anyway, here it is.

    Code:
    void del_contact(int *address_count, int *current_record)
    {   
        int get, del, i, j;
        
            printf("\nEnter the number of entry/contact you want to delete.\n");
            printf("For example:\nIf you want to delete your first input type '1'\n");
            printf("Contact number:");
            scanf("%d", &get);
        
            del = get-1;
        
    
            //for loop to assign '/0' as the content for the given entry
            for(i=0; i<6; i++)
            {
                strcpy(addressbook[i][del], addressbook[6][0]); //address book[6][0] has no value
            }
            (*address_count)--; //since you're gonna delete an entry
            if((*current_record)>0)
                {
                    (*current_record)--;
                }
            
                for(i=0; i<6; i++)
                {
                    for(;get<=(*address_count-get);get++)
                    { 
                    strcpy(addressbook[i][get-1],addressbook[i][get]);
                    }
                }                
      }
    Code:
    for(i=0; i<6; i++)
                {
                    for(;get<=(*address_count-get);get++)
                    { 
                    strcpy(addressbook[i][get-1],addressbook[i][get]);
                    }
                }
    Here's my problem.
    This code is supposed to copy the strings from the next array to the array to be deleted. Which means that if there's an entry(addressbook) in arrays 1, 2 and 3 and I want to delete array 1, array 2 will go be copied to array 1 and array 3 to array 2 so that the program runs smoothly..

    But this doesn't work. D: any idea where I'm wrong? What should I do? Thanks a lot!

  2. #2
    Algorithm Dissector iMalc's Avatar
    Join Date
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    New Zealand
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    6,318
    Your problems are on line 26. If you step through it with a debugger then the problem will become obvious.
    Pay attention to the value that "get" has, while single-stepping through those loops.
    My homepage
    Advice: Take only as directed - If symptoms persist, please see your debugger

    Linus Torvalds: "But it clearly is the only right way. The fact that everybody else does it some other way only means that they are wrong"

  3. #3
    Registered User
    Join Date
    Feb 2013
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    33
    How can I fix this? D:

  4. #4
    Registered User
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    Jun 2005
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    6,815
    You've been told where the problem is .... Do as advised, and step through the code with the debugger. That will help you understand the problem. Once you understand the problem, you will be able to fix it.

    No need to play helpless. We don't spoonfeed here.
    Right 98% of the time, and don't care about the other 3%.

    If I seem grumpy or unhelpful in reply to you, or tell you you need to demonstrate more effort before you can expect help, it is likely you deserve it. Suck it up, Buttercup, and read this, this, and this before posting again.

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