copy array to another array

This is a discussion on copy array to another array within the C Programming forums, part of the General Programming Boards category; how do you copy one array to another? Code: array1 = array2; that code doesn't work, does it?...

  1. #1
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    copy array to another array

    how do you copy one array to another?
    Code:
    array1 = array2;
    that code doesn't work, does it?

  2. #2
    MFC killed my cat! manutd's Avatar
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    No. If you know the size of the array:
    Code:
    #define ARRAY_SIZE 3
    int array1[ARRAY_SIZE] = {};
    int array2[ARRAY_SIZE] = {1,3,4};
    for (int i = 0; i < ARRAY_SIZE; i++)
    {
         array1[i] = array2[i];
    }
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  3. #3
    ATH0 quzah's Avatar
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    memcpy? There are a few more, but they all pretty much do what's been shown above.


    Quzah.
    Hope is the first step on the road to disappointment.

  4. #4
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    Code:
    struct S
    {
        char arr[3];
    };
    
    int main( int argc, char *argv[] )
    {
      struct S s1 = { {'1','2','3'} };
      struct S s2 = { {'4','5','6'} };
    
      s1 = s2;
    
      return 0;
    }

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