function - return statement

This is a discussion on function - return statement within the C Programming forums, part of the General Programming Boards category; lets say i created a 2-dimentional array in a function, let's call it Code: #include... char array(){ ... ... return ...

  1. #1
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    function - return statement

    lets say i created a 2-dimentional array in a function, let's call it

    Code:
    #include...
    
    char array(){
    ...
    ...
    return ???;
    }
    
    int main(){
    char board[50][50];
    ...
    ...
    board[50][50] = array();  /*this part is totally wrong, but i think you should understand what im trying to do by this*/
    
    return 0;
    }
    is there a way to return a full array into the main portion of a program?
    if not, can you somehow loop the function such that it is able to return the specific array values back into the main?

  2. #2
    and the Hat of Guessing tabstop's Avatar
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    Pass the array into the function and fill it that way.

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    ok... thats really not what i want to do but thx for answering... what i want somthing like the following
    Code:
     #include...
    
    char array(int a){
    int b,c, d;
    char array1[a][a];
    
    for(b =0; b<=a;b++){
    for(c=0;c<=a;c++){
    d = rand()&#37;2;
    array1[b][c] =d
    }
    }
    return (somthing...dont know what goes here);
    }
    int main(){
    int x;
    
    scanf("%d", &x);
    char array[x][x] = array(x); //pretty sure this is wrong
    ...
    ...
    return 0;
    }
    somtheing like that where an array is created in a function... is there a way to return that function created array back into the main?

  4. #4
    C++まいる!Cをこわせ! Elysia's Avatar
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    Please indent your code.
    It's possible, but it's not a very friendly way. You have to allocate memory on the heap and return a char** to there.
    Main will later have to call free to release the memory.
    Therefore it is preferred to pass in a buffer to the function which it can fill. Be sure to pass along the size of the buffer, as well.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  5. #5
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    Ok... thx... one more question... if i want to print the array in the function... then present that printed array in the main would i also have to use a char**? or buffer... or is there a way around that?

  6. #6
    and the Hat of Guessing tabstop's Avatar
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    Quote Originally Posted by chungt004 View Post
    Ok... thx... one more question... if i want to print the array in the function... then present that printed array in the main would i also have to use a char**? or buffer... or is there a way around that?
    What does that mean? Do you mean that now you want a string (or an array of strings, or something similar) that contains what your array would like if printed?

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