passing arrays

This is a discussion on passing arrays within the C++ Programming forums, part of the General Programming Boards category; I'm having some trouble figuring out how to pass arrays. I need to write a function with 3 parameters: a,b,i. ...

  1. #1
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    Question passing arrays

    I'm having some trouble figuring out how to pass arrays. I need to write a function with 3 parameters: a,b,i. A and B are char arrays. The parameter i is an int. The function inserts the string a into b immediately after index i. Assume b is large enough to hold the added characters.
    So an example of what I'm trying to do is the following...
    A is "Today Wednesday"
    b is "is"
    i is 6
    and the result of the function would be
    Today is Wednesday

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    I believe you can use pointers to pass the arrays if you donot know how to do so i can look up an example of such a code for you

  3. #3
    and the hat of int overfl Salem's Avatar
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    Code:
    // this is the prototype
    void insert_word( char line[], char word[], int pos );
    
    // example use
    int main ( ) {
        char buff[100] = "Today Wednesday";
        char insert[]  = "is";
        insert_word( buff, insert, 6 );
        return 0;
    }
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  4. #4
    Registered User Null Shinji's Avatar
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    you want something exact ne??? so it will be

    Code:
    memmove(a+i+strlen(b)-1, a+i,strlen(a)-i) 
    /*i'm not sure about this, i mean, i dont know if the arguments
    are in the correct order for this function, i used memmove(dest,source, num)*/
    memcpy(a+i,b,strlen(b)-1) 
    /*again used memcpy(dest,source, num)
    but i'm not sure about the order of the arguments*/
    Last edited by Null Shinji; 10-25-2001 at 03:48 PM.
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  5. #5
    Registered User Null Shinji's Avatar
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    if you want me to explain.... pm me or mail me at nullshinji@gmx.net
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